PATENT:

1. Preparation of (Optically Active) Tertiary Phosphine Compounds, Their Metal Complexes, and Their Use for Preparation of Optically Active Compounds, Nakamura, E.; Yoshikai, N.; Hajra, A. Jpn. Kokai Tokkyo Koho (2007), JP2007314433.

 

PUBLICATION:

(For Latest Publication visit the Group Website)

206. Electrochemical C–H Sulfonylation of Hydrazones. Sarkar, B. Ghosh, P. and Hajra,* A. Org. Lett. 2023, 25, 3440.

205. Imino-λ³-iodane-Triggered Oxidative Ring-Opening of 2H-Indazoles to ortho–N-Acylsulfonamidated Azobenzenes. Bhatterjee, S. and Hajra,* A. Org. Lett. 2023, 25, 4283.

204. One-pot Manganese (I)-Catalyzed Oxidant-Controlled Divergent Functionalization of 2-Arylindazoles. Das, K. K.; Ghosh, A. and Hajra,* Chem. Eur. J. 2023, https://doi.org/10.1002/chem.202302849

203. Redox-neutral carbon–heteroatom bond formation under photoredox catalysis. Ghpsh, S.; Majumdar, S. Ghosh, D. Hajra,* A, Chem. Commun. 2023, 59, 7004.

202. Synergistic Photoredox and Iron(II) Catalyzed Carbophosphorothiolation of Vinyl Arenes. Ghosh, A. K.; Neogi, S.; Ghosh, P. Hajra,* A. Adv. Synth. Catal, 2023, 365, 2271.

201. Aerobic Cu(I)-Catalyzed Site-Selective 1,3-Difunctionalization of Indazole through Cascade C−N and C−O Bond Formation. Das, K. K.; Ghosh, A.; Mallick, T. and Hajra,* A. Adv. Synth. Catal, 2023, 365, 388.

202. Visible Light Induced Three-Component 1,2-Dicarbofunctionalization of Alkenes and Alkynes. Mohor, M.; Ghosh, S. and Chem. Rec., 2023, 23, doi.org/10.1002/tcr.202300121.        

201. Visible light-induced organophotoredox-catalyzed difunctionalization of alkenes and alkynes. Gupta, S.; Kundu, A.; Ghosh, S.; Chakraborti, A. and Hajra,* A, Green Chem., 2023, 25, 8459.

200. N-Heteroarylation of Sulfonamides: An Overview. Ghosh, S.; Pal, P. P. and Hajra,* A.  Adv. Synth. Catal, 2023, 365, 3020.

199. Recent advances in carbosilylation of alkenes and alkynes. Pal, P. P.; Ghosg, S. and Hajra,* A. Org. Biomol. Chem., 2023, 21, 2272

198. Visible-light-induced cascade reaction: a sustainable approach towards molecular complexity. Ghosh, S.; Pyne, P.; Ghosh, A.; Chowdhury, S. and Hajra,* A, Org. Biomol. Chem., 2023, 21, 1591.

197. Visible-light-induced Mn(0)-catalyzed direct C-3 mono-, di- and perfluoroalkylation reactions of 2H-indazoles. Laru, S.; Bhattacharjee, S. and Hajra,* A, Chem. Commun. 2022, 58, 13604.

196. Remote difunctionalization of 2H-indazoles using Koser’s reagents. Bhattacharjee, S.; Laru, S. and Hajra,* A, Chem. Commun. 2022, 58, 981.

195. Visible light induced functionalization of indazole and pyrazole: A recent update. Ghosh, D.; Ghosh, S.; Ghosh, A.; Pyne, P.; Majumdar, S. and Hajra,* A, Chem. Commun. 2022, 58, 4435.

194. Organocatalytic Oxidative C–H Amination of Aldehyde Hydrazones with Azoles at Ambient Temperature. Ghosh, A. K; Neogi, S.; Das, K. and Hajra,* A. J. Org. Chem., 2022, 87, 5682.

193. Electrochemically Enabled Dehydrogenative Phosphorothiolation of 2H-Indazoles under Electrolyte-Free Conditions. Ghosh, P. and Hajra,* A, Adv Synth Catal, 2022, 364, 4157.

192. Visible-light-induced metal-free coupling of C(sp3)-H sources with Heteroarenes. Ghosh, A.; Pyne, P.; Ghosh, S.; Ghosh, D.; Majumdar, S. and Hajra,* A, Green Chem., 2022, 24, 3056.

191. Hypervalent Iodine(III)-Mediated Oxidative Dearomatization of 2H-Indazoles towards Indazolyl Indazolones. Bhattacharjee, S.; Laru, S. and and Hajra,* A. Org. Biomol. Chem., 2022, 20, 8893.

190. Transition-metal-catalyzed ortho C–H functionalization of 2-arylquinoxalines. Mondal. K.; S. Ghosh.and Hajra,* A. Org. Biomol. Chem., 2022, 20, 7361.

189. Asymmetric C(sp3)‒H Borylation: An Update. S. Ghosh.; Ghosh, A.; Pyne, A. and Hajra,* A. Org. Biomol. Chem., 2022, 20, 4496.

188. Recent Advances in Microwave-assisted Cross-Coupling Reactions. Rahman, M.; Ghosh, S.; Bhattacherjee, D.; Zyryanov, G. V.; Bagdi, A. K. and Hajra,* A. Asian J. Org. Chem., 2022, e202200179.

187. Ortho C−H Functionalizations of 2-Aryl-2H-Indazoles. Ghosh, S.; Payne, P.; Ghosh, A. and and Hajra,* Chem. Rec., 2022, 22, doi.org/10.1002/tcr.202200158.

186. Late-stage ortho-C–H alkenylation of 2-arylindazoles in aqueous medium by Manganese(I)-catalysis. Das, K. K.; Ghosh, A. K. and and Hajra,* A. RSC Adv., 2022, 12, 19412.

185. Direct Asymmetric Addition of Heteroatom Nucleophiles to Imines. Adv Synth Catal, 2022, 364, 2092.

184. One-Pot Construction of Indolo[2,3-b]quinoxalines through Ruthenium-Catalyzed OrthoC–H Bond Functionalization of 2-Arylquinoxalines with Sulfonyl Azides. Laru, S.; Bhattacharjee, S. and Hajra,* A. Org. Lett. 2021, 23,  7624.

183. Three-Component Carbosilylation of Alkenes by Merging Iron and Visible-Light Photocatalysis. Neogi, S.; Ghosh, A. K.; Mandal, S.; Ghosh, D.; Ghosh, D. and Hajra,* A. Org. Lett. 2021, 23, 6510.

182. Fluorination of 2H-Indazoles Using N-Fluorobenzenesulfonimide. Ghosh, P. and Hajra,* A. J. Org. Chem., 2021, 86, 10883.

181. Potassium Persulfate Mediated Chemodivergent C-3 Functionalization of 2H-Indazoles with DMSO as C₁Source.       Bhattacharjee, S.; Laru, S.; Ghosh, P. and Hajra,* A. J. Org. Chem., 2021, 86, 10866.

..

174. Ru(II)-Catalyzed Switchable C–H Alkylation and Spirocyclization of 2-Arylquinoxalines with Maleimides via ortho-C–H Activation. Laru, S.; Bhattacharjee, S.; Singsardar, M.; Samanta, S. and Hajra,* A. J. Org. Chem., 2021, 86, 2784. 

173. Advances in Transition‐Metal Catalyzed Carbonylative Suzuki‐Miyaura Coupling Reaction: An Update. Bhattacherjee, D.; Rahman, M.; Ghosh, S.; Bagdi, A. K.; Zyranov, G.; Chupakhin, O.; Das, P. and Hajra,* A. Adv Synth Catal, 2021, 363, 1597.

172. Light-Induced Borylation: Developments and Mechanistic Insights. Lai, D.; Ghosh, S.and Hajra,* A. Org. Biomol. Chem., 2021, 19, xxxx (DOI: 10.1039/D1OB00323B)

171. Visible-light-induced silylation: an update. Ghosh, S.; Lai, D. and Hajra,* A. Org. Biomol. Chem., 2021, 19, 2399.

170. Organophotoredox-Catalyzed Direct C-H Amination of 2H-Indazoles with Amines. Neogi, S.; Ghosh, A. K.; Majhi, K.; Samant, S.; Kibriya, G. and Hajra,* A. Org. Lett. 2020, 22, 5605.

169. Rhodium-Catalyzed Directed C(sp2)−H Bond Addition of 2-Arylindazoles to N-Sulfonylformaldimines and Activated Aldehydes. Ghosh, A. K.; P. Ghosh and Hajra,* A. J. Org. Chem., 2020, 85, 15752.

168. Fe(III)-Catalyzed synthesis of steroidal imidazoheterocycles as potent antiproliferative agents. Samanta, S.; Ghosh, A. K.; Ghosh, S.; Ilina, A. A.; Shirinian, V. Z. and Hajra,* A. Org. Biomol. Chem., 2020, 18, 5571.

167. Trifunctionalization of Alkenes and Alkynes. Ghosh, S.; Lai, D. and Hajra,*A. Org. Biomol. Chem. 2020, 18, 7948.

166. Recent Advances in the Synthesis of Fluorinated Compounds via Aryne Intermediate. Rahman, M.; Bagdi, A. K.; Kopchuk, D. S.; Koyalev, I. S.; Zyryanov, G. V.; Chupakhin, O. N.; Majee, A. and  Hajra,* A. Org. Biomol. Chem., 2020, 18, 9562.

165. Functionalized ionic liquid tagged Cu(II) catalyst: Design, characterization, and application in synthesis of imidazo[1,2-a]pyridine. Ghosh, S.; Kundu, D.; Dey, A.; Majee, A. and Hajra,* A. J. Indian Chem. Soc., 2020, 97, xxxx (convention issue sp).

164. Visible light-induced photocatalytic C–H ethoxycarbonylmethylation of imidazoheterocycles with ethyl diazoacetate. Bhattacharjee, S; Laru, S.; Samanta, S.; Singsardar, M and Hajra,* A. RSC Adv., 2020, 10, 27984.

163. Visible light promoted cross-dehydrogenative coupling: a decade update. Bagdi, A. K.;  Rahman, M.; Bhattacherjee, D.; Zyryanov, G. V.; Ghosh, S.; Chupakhin, O. N.  and Hajra, * A. Green Chem. 2020, 22, 6632

162. Aminomethylation of Imidazopyridines using N,N-Dimethylformamide as an Aminomethylating Reagent under Cu(II)-Catalysis. Ghosh, P.; Samanta, S.; Ghosh, S.; Jana, S. and Hajra,* A. Tetrahedron Lett. 2020, 61, 152581.

161. Direct Catalytic Functionalization of Indazole Derivatives. Ghosh, S.; Mondal, S. and Hajra,* A., Adv. Synth. Catal., 2020, doi.org/10.1002/adsc.202000423

160. Dioxygen-Triggered Oxo-Sulfonylation of Hydrazones. Ghosh, A. K.; Mondal, S. and Hajra,* A., Org. Lett. 2020, 22, 7, 2771

159. tert-Butyl Hydroperoxide-Mediated Oxo-Sulfonylation of 2H-Indazoles with Sulfinic Acid toward Indazol-3(2H)-ones. Ghosh, P; Mondal, S. and Hajra,* A., Org. Lett. 2020, 22, 3, 1086

158. Regioselective hydroarylation and arylation of maleimides with indazoles via a Rh(iii)-catalyzed C–H activation. Ghosh, A. K; Samanta, S.; Ghosh, P.; Neogi, S and Hajra,* A., Org. Biomol. Chem., 2020,18, 3093

157. Visible light promoted C–H functionalization of imidazoheterocycles. Bagdi, A. K and Hajra,* A., Org. Biomol. Chem., 2020,18, 2611

156. Rhodium(iii)-catalyzed ortho-C–H amidation of 2-arylindazoles with a dioxazolone as an amidating reagent. Ghosh, P.; Samanta, S and Hajra,* A., Org. Biomol. Chem., 2020,18, 1728

155. Visible-light-promoted oxidative coupling of styrene with cyclic ethers. Kibriya, G.; Ghosh, D and Hajra,* A., Science china chemistry, 63, 42–46(2020)

154. Iodine-Catalyzed Selenylation of 2H-Indazole. Dey, A. and Hajra,* A., J. Org. Chem. 2019, 84, 22, 14904

153. Visible-Light-Induced Regioselective C(sp³)-H Acyloxylation of Aryl-2H-azirines with (Diacetoxy)iodobenzene. De, A.; Santra, S.; Hajra, A.; Zyryanov, G. V, and Majee*, A., J. Org. Chem. 2019, 84, 18, 11735

152. Organophotoredox-Catalyzed C(sp²)–H Difluoromethylenephosphonation of Imidazoheterocycles. Singsardar, M.; Mondal, S.; Laru, S and Hajra,* A., Org. Lett. 2019, 21, 14, 5606

151. Rhodium-Catalyzed Directed C–H Amidation of Imidazoheterocycles with Dioxazolones. Samanta, S.; Mondal, S.; Ghosh, D and Hajra,* A., Org. Lett. 2019, 21, 12, 4905

150. Mn(III)-Mediated C–H Phosphorylation of Indazoles with Dialkyl Phosphites. Ghosh, P; Mondal, S. and Hajra,* A., ACS Omega. 2019, 4, 5, 9049

149. Visible-Light-Induced Regioselective Cross-Dehydrogenative Coupling of 2H-Indazoles with Ethers. Singsardar, M.; Laru, S.; Mondal, S. and Hajra,* A., J. Org. Chem. 2019, 84, 7, 4543

148. Mn(II)-Catalyzed C–H Alkylation of Imidazopyridines and N-Heteroarenes via Decarbonylative and Cross-Dehydrogenative Coupling. Samanta, S. and Hajra,* A., J. Org. Chem. 2019, 84, 7, 4363

147. Metal-Free Synthesis of 2-Arylbenzothiazoles from Aldehydes, Amines, and Thiocyanate. Dey, A. and Hajra,* A., Org. Lett. 2019, 21, 1686

146. Visible-Light-Mediated Synthesis of Unsymmetrical Diaryl Sulfides via Oxidative Coupling of Arylhydrazine with Thiol. Kibriya, G. Mondal. S. and Hajra,* A. Org. Lett. 2018, 20, 7740

145. Potassium Persulfate‐Mediated Thiocyanation of 2H‐Indazole under Iron‐Catalysis. Dey, A. and Hajra,* A., Adv. Synth. Catal., 2018, doi.org/10.1002/adsc.201801232

144. Metal-Free Trifluoromethylation of Indazoles. Ghosh, P; Mondal, S; Hajra,* A., J. Org. Chem., 2018, 83, 13618

143. Divergent Synthesis of Allenylsulfonamide and Enaminonesulfonamide via In(III)-Catalyzed Couplings of Propargylamine and N-Fluorobenzenesulfonimide Samanta, S. and Hajra* A. J. Org. Chem., 2018, 83, 13157

142. Visible-Light-Induced Organophotoredox-Catalyzed Phosphonylation of 2H-Indazoles with Diphenylphosphine Oxide. Singsardar, M.; Dey, A.; Sarkar, R. and Hajra,* A. J. Org. Chem., 2018, 83, 12694

141. Visible-Light-Promoted C (sp³)-C (sp²) Cross-Dehydrogenative Coupling of Tertiary Amine with Imidazopyridine. Kibriya, G.; Bagdi A.K. and Hajra,* A. J. Org. Chem., 2018, 83, 10619

140. Metal-Free C-5 Hydroxylation of 8-Aminoquinoline Amide, Mondal S. and Hajra,* A. J. Org. Chem., 2018, 83, 11392.

139. Regioselective synthesis of unsymmetrical biheteroaryls via copper (II)-catalyzed cascade annulations. Samanta, S. and Hajra,* A. Chem. Commun., 2018, 54, 3379

138. Synthesis of Benzo[4,5]imidazo[2,1-b]thiazole by Cu(II)-catalyzed Thioamination of Nitroalkene with 1H-Benzo[d]imidazole-2-thiol. Jana, S.; Chakraborty, A.; Shirinian, V. Z. and Hajra,* A. Adv. Synth. Catal., 2018, 360, 2402

137. Regioselective C‐7 Nitration of 8‐Aminoquinoline Amides Using tert‐Butyl Nitrite. Mondal, S.; Samanta, S. and Hajra,* A. Adv. Synth. Catal., 2018, 360, 1026

136. Ruthenium (II)-catalyzed remote C-H addition of 8-aminoquinoline amide to activated aldehyde. Mondal, S. and Hajra,* A. Org. Biomol. Chem., 2018, 16, 2846

135. Visible light induced tetramethylethylenediamine assisted formylation of imidazopyridines. Kibriya, G; Bagdi, A. K. and Hajra,* A. Org. Biomol. Chem., 2018, 16, 3473

134. A convergent synthesis of vinyloxyimidazopyridine via Cu (I)-catalyzed three-component coupling Samanta, S.; Mondal, S. and Hajra,* A. Org. Biomol. Chem., 2018, 16, 1088. [Highlighted in the front cover picture]

133. Synthesis of Triazolium Inner Salts by Thiocyanation of Aldehyde‐Derived Hydrazones Mondal, S.; Samanta. S. and Hajra,* A. Euro. J. Org. Chem, 2018, 2018, 1060

132. Synthesis and evaluation of the antiproliferative activity of benzylidenes of 16-dehydroprogesterone series. Scherbakov, A.M.; Zavarzin, I. V.; Vorontsova, S.K.; Hajra, A.; Andreeva, O. E.; Yadykov, A. V.; Levina, I. S.; Volkova, Y. A. and Shirinian, V. Z. Steroids, 2018, 138, 91

131. Mild, Efficient, and Metal-Free Radical 1,2-Dithiocyanation of Alkynes and Alkenes at Room Temperature. Samanta, S.; Chatterjee, R.; Santra, S.; Hajra, A.; Khalymbadzha, I. A.; Zyryanov, G. V. and Majee,* A. ACS Omega, 2018, 3, 13081

130. (Diacetoxy)iodobenzene-Mediated Regioselective Imidation of Imidazoheterocycles with N-Fluorobenzenesulfonimide. Singsardar, M.; Mondal, S.; Sarkar, R. and Hajra,* A. ACS Omega, 2018, 3, 12505

129. Determination of vertical ionization potential of nitroso-benzoimidazothiazole using charge transfer interaction with a series of acceptors. Chaudhuri, T.; Santra, S.; Jana, S. and Hajra*, A. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 204, 403

128. Environment-Friendly Protocol for the Chlorination of Imidazoheterocycles by Chloramine-T. Dey, A.; Singsardar, M.; Sarkar, R. and Hajra,* A. ACS Omega, 2018, 3, 3513

127. Metal-free C–H arylation of imidazoheterocycles with aryl hydrazines Jana, S.; Samanta, S.; Bagdi, A. K.; Shirinian, V. Z. and Hajra,* A. RSC Advances, 2018, 8, 12360

126. Brønsted Acidic Ionic Liquid‐Catalyzed Regioselective Synthesis of Pyrazolopyrimidines and Their Photophysical Properties. Singsardar, M.; Sarkar, R.; Majhi, K.; Sinha, S. and Hajra,* A. ChemistrySelect, 2018, 3, 1404.

125. Synthesis and characterization of host-guest inclusion co mplex of m-cresol with β-cyclodextrin. Majhi, K.; Khatun, R.; Jana, S.; Hajra, A. and Sinha, S. Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2018, 90, 61.

124. Synthesis of diverse β-(nitrooxy)-substituted amines by regioselective ring-opening of aziridines under neat conditions. Samanta, S.; Chatterjee, R.; Mahato, S.; Hajra,* A.; Santra, S.; Zyryanov, G. V. and Majee, A. Synthetic Communications, 2018, 48, 1857

123. Synthesis of diverse β-(nitrooxy)-substituted amines by regioselective ring-opening of aziridines under neat conditions. Samanta, S.; Chatterjee, R.; Mahato, S.; Hajra,* A.; Santra, S.; Zyryanov, G. V. and Majee, A. Synthetic Communications, 2018, 48, 1857

122. Imidazolium Zwitterionic Molten Salt: An Efficient Organocatalyst under Neat Conditions at Room Temperature for the Synthesis of Dipyrromethanes as well as Bis(indolyl)methanes, Chatterjee, R.; Mahato, S.; Santra, S.; Zyryanov, G. V.; Hajra,* A.; Majee, A. ChemistrySelect, 2018, 3, 5843

121. Visible-Light Organic Photoredox-Catalyzed CH Alkoxylation of Imidazopyridine with Alcohol; Kibriya, G.; Samanta, S.; Jana, S.; Mondal, S.; Hajra, A. The Journal of organic chemistry, 2017, 82(24), 13722–13727.

120. Metal‐Free Synthesis of Indoles from Arylhydrazines and Nitroalkenes at Room Temperature; Singsardar, M.; Chakraborty, A.; Jana, S.; Hajra, A. Chemistry Select, 2017, 2 (28), 8893-8897.

119. The Remarkable Cooperative Effect of a Brønsted Acidic Ionic Liquid in Cyclization between 2‐Aminobenzamides with Ketones; Das, S.; Santra, S.; Jana, S; Zyryanov, G. V.; Majee, A.; Hajra, A. Eur. J. Org. Chem. 2017, 2017, 4955–4962.

118. A Domino Approach for the Synthesis of α‐Iodo‐β‐dicarbonyl Compounds from α‐Epoxycarbonyls; S Mahato, R Chatterjee, S Santra, GV Zyryanov, A Hajra, A Majee; Chemistry Select 2017, 2 (22), 6254-6259.

117. Aminomethylation of Imidazoheterocycles with Morpholine; Mondal, S.; Samanta, S; Singsardar, M.; Hajra, A. Organic Letters 2017, 19 (14), 3751-3754.

116. Steroidal pyrimidines and dihydrotriazines as novel classes of anticancer agents against hormone-dependent breast cancer cells; Scherbakov, A. M.; Komkov, A. V.; Komendantova,  A. S.; Yastrebova, M. A.; Andreeva, O. E.; Shirinian, V. Z.; Hajra, A.; Zavarzin, I. V.; Volkova, Y. A. Frontiers in Pharmacology, 2017, 8, 979.

115. Synthesis and characterization of host–guest inclusion complex of m-cresol with β-cyclodextrin; Majhi, K.; Khatun, R.; Jana, S.; Hajra, A.; Shukla, A.; Maiti, P.; Dey, A.; Ray, P. P.; Sinha, S. Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2018, 61-73.

114. FeCl₃/ZnI₂-Catalyzed regioselective synthesis of angularly fused furans; Dey, A.; Hajra, A. Organic & Biomolecular Chemistry, 2017, 15 (38), 8084-8090.

113. Brønsted acidic ionic liquid-catalyzed tandem reaction: an efficient approach towards regioselective synthesis of pyrano[3,2-c]coumarins under solvent-free conditions bearing lower Efactors; Mahato, S.; Santra, S.; Chatterjee, R.; Zyryanov, G. V.; Hajra, A. and Majee, A.,Green Chem., 2017, 19, 3282-3295 .

112. Copper-Catalyzed Regioselective Synthesis of Multisubstituted Furans by Coupling between Ketones and Aromatic Olefins, Dey, A.; Ali, M.A.; Jana, S.; and Hajra A. The Journal of Organic Chemistry, 2017, 82 (9), 4812–4818.

111. (Diacetoxy) iodobenzene-mediated Oxidative CH Amination of Imidazopyridines at Ambient Temperature, Mondal, S.;  Samanta, S; Jana, S. and Hajra, A. The Journal of Organic Chemistry, 2017, 82 (8), 4504–4510.

110. Sodium persulfate mediated selenylation of arenofurans, Hajra, A.; Kibriya, G.; Samanta, S.; Singsardar, M.; Jana, S.; Samanta, S. and Hajra A. European Journal of Organic Chemistry, 2017, 2017, 3055–3058.

109. Palladium-catalyzed synthesis of indole fused coumarins via cross-dehydrogenative coupling, Dey, A.; Ali, M.A.; Jana, S.; Samanta, S. and Hajra A. Tetrahedron Letters, 2017,  58 (4), 313-316.

108. N, N‐Dimethylformamide as a Methylenating Reagent: Synthesis of Heterodiarylmethanes via Copper‐Catalyzed Coupling between Imidazo [1,2‐a] pyridines and Indoles/N, N‐Dimethylaniline. Mondal, S.; Samanta, S.; Santra, S.; Bagdi, A.K. and Hajra, A. Advanced Synthesis & Catalysis, 2016, 358 (22), 3633-3641.

107. FeCl3-Catalyzed Cross-Dehydrogenative Coupling between Imidazoheterocycles and Oxoaldehydes. Samanta, S.; Mondal, S.; Santra, S.; Kibriya, G. and Hajra, A. The Journal of Organic Chemistry, 2016, 81 (20), 10088-10093.

106. Zn (OTf) 2-Catalyzed Synthesis of Imidazole-substituted Allenes. Jana, S.; Dey, A.; Singsardar, M.; Bagdi, A.K. and Hajra, A. The Journal of Organic Chemistry, 2016, 81 (19), 9489-9493.

105. Zwitterionic-Type Molten Salt Catalyzed Iodination in Water: Synthesis of Iodoimidazoheterocycles. Mondal, S.; Samanta, S.; Singsardar, M.; Mishra, S.; Mitra, S. and Hajra, A. Synthesis, 2016, 48 (22), 4009-4015.

104. Conversion of aziridines to oxazolidines through geminal difunctionalization of vinyl arenes or by tandem ring-opening/closing reaction of aziridine itself. Ghosal, N.C.; Santra, S.; Zyryanov, G.V.; Hajra, A. and Majee, A. Tetrahedron Letters, 2016, 57 (31), 3551-3555.

103. Design, Synthesis, and Functionalization of Imidazoheterocycles. Bagdi, A.K. and Hajra, A. The Chemical Records, 2016, 16, 1868.

102. Switching the regioselectivity in the copper-catalyzed synthesis of iodoimidazo [1, 2-a] pyridines. Samanta, S.; Jana, S.; Mondal, S.; Monir, K.; Chandra, S.K. and Hajra A. Organic & biomolecular chemistry, 2016, 14 (22), 5073-5078.

101. Organocatalysis by an Aprotic Imidazolium Zwitterion: Regioselective Ring‐Opening of Aziridines and Applicable to Gram Scale Synthesis. Ghosal, N. C.; Santra, S.; Das, S.; Hajra, A.; Zyryanov, G.V. and Majee, A. ChemInform 47.23 (2016).

100. Zwitterionic Imidazolium Salt: An Efficient Organocatalyst for the One-Pot Synthesis of 5, 6-Unsubstituted 1, 4-Dihydropyridine Scaffolds. Bagdi, A.K.; Kundu, D.; Majee, A. and Hajra, A. Current Organocatalysis, 2016, 3 (2), 169-175.

99. Zwitterionic Imidazolium Salt: Recent Advances in Organocatalysis. Das, S.; Santra, S.; Mondal, P.; Majee, A. and Hajra, A. Synthesis, 2016, 48 (09), 1269-1285.

98. Preparation of 3-Amino-1, 4-Diynes by Using Copper Oxide Nanoparticles. Mishra, S. Santra, S. and Hajra, A. Synfacts, 2016, 12 (03), 0320-0320.

97. A decade update on solvent and catalyst-free neat organic reactions: a step forward towards sustainability. Sarkar, A.; Santra, S.; Kundu, S.K.; Hajra, A.; Zyryanov, G.V.and Chupakhin, O.N. Green Chemistry, 2016, 18 (16), 4475-4525.

96. tert-Butyl nitrite mediated azo coupling between anilines and imidazoheterocycles. Chakraborty, A.; Jana, S.; Kibriya, G.; Dey, A. and Hajra, A. RSC Advances 2016, 6 (41), 34146-34152.

95. Peroxide-free synthesis of benzo [b][1, 4] thiazine 1, 1-dioxides and their antimicrobial study. Mitra, S.; Mukherjee, S. and Hajra, A. RSC Advances 6 (1), 201-207.

94. Copper-catalyzed C–H ethoxycarbonyldifluoromethylation of imidazoheterocycles. Mishra, S.; Mondal, P.; Ghosh, M.; Mondal, S. and Hajra, A. Organic & biomolecular chemistry, 2016, 14 (4), 1432-1436.

93. Organocatalysis by an aprotic imidazolium zwitterion: regioselective ring-opening of aziridines and applicable to gram scale synthesis. Ghosal, N.C.; Santra, S.; Das, S.; Hajra, A.; Zyryanov, G.V. and Majee, A. Green Chemistry, 2016, 18 (2), 565-574.

92. DABCO‐Promoted One‐Pot Facile Synthesis of Angularly Fused Furoquinolinones and Furocoumarins. Ghosh, M. and Hajra, A. European Journal of Organic Chemistry 2015 (35), 7836-7841.

91. Diversified Synthesis of Furans by Coupling between Enols/1, 3‐Dicarbonyl Compounds and Nitroolefins: Direct Access to Dioxa [5] helicenes. Ghosh, M.; Santra, S.; Mondal, P.; Kundu, D. and Hajra, A. Chemistry–An Asian Journal, 2015, 10 (11), 2525-2536.

90. Copper-catalyzed oxidative annulation between 2-aminopyridine and arylidenemalononitrile leading to 4-oxo-pyrido [1, 2-a] pyrimidine-3-carbonitrile. Mishra, S. and Hajra, A. Tetrahedron Letters, 2015, 56 (41), 5651-5655.

89. Solvent-free silica-promoted multicomponent condensation: synthesis of highly functionalized piperidines. Das, S.; Bagdi, A.K.; Santra, S.; Majee, A. and Hajra, A. Research on Chemical Intermediates, 2015, 41 (9), 6749-6763.

88. Metal-Free Thiocyanation of Imidazoheterocycles through Visible Light Photoredox Catalysis. Mitra, S.; Ghosh, M.; Mishra, S. and Hajra, A. The Journal of organic chemistry, 2015, 80 (16), 8275-8281.

87. Palladium-catalyzed dehydrogenative annulation of imidazo [1, 2-a] pyridines with diarylalkynes. Ghosh, M.; Naskar, A.; Mishra, S. and Hajra A. Tetrahedron Letters, 2015, 56 (27), 4101-4104.

86. Zinc Tetrafluoroborate: A Versatile and Robust Catalyst for Various Organic Reactions and Transformations. Sarkar, A.; Santra, S.; Kundu, S. K.; Ghosal, N.C.; Hajra, A. and Majee, A. Synthesis, 2015, 47 (10), 1379-1386.

85. Regioselective Synthesis of Multisubstituted Furans via Copper-Mediated Coupling between Ketones and β-Nitrostyrenes. Ghosh, M.; Mishra, S. and Hajra, A. The Journal of organic chemistry, 2015, 80 (10), 5364-5368.

84. Catalyst-free selenylation of imidazoheterocycles. Jana, S.; Chakraborty, A.; Mondal, S. and Hajra, A. RSC Advances, 2015, 5 (95), 77534-77537.

83. Regioselective synthesis of nitrosoimidazoheterocycles using tert-butyl nitrite. Monir, K.; Ghosh, M.; Jana, S.; Mondal, P.; Majee, A. and Hajra, A. Organic & biomolecular chemistry, 2015 13 (32), 8717-8722.

82. Combination of NH2OH•HCl and NaIO4: an effective reagent for molecular iodine-free regioselective 1,2-difunctionalization of olefins and easy access of terminal acetals. Chakraborty, N.; Santra, S.; Kundu, S. K.; Hajra, A.; Zyryanov, A. V. and Majee, A. RSC Advances, 2015, 5 (70), 56780-56788.

81. Regioselective Oxidative Trifluoromethylation of Imidazoheterocycles via C (sp2)− H Bond Functionalization. Monir, K.; Bagdi, A. K.; Ghosh, M. and Hajra, A. J. Org. Chem. 2015, 80, 1332.

80. Copper catalyzed regioselective synthesis of furan via tandem cycloaddition of ketone with unsaturated carboxylic acid under air. Hajra, A.; Ghosh, M.; Mishra, S.and Monir, K. Org. Biomol. Chem, 2015, 13, 309

79. Zinc Tetrafluoroborate: A Versatile and Robust Catalyst for Various Organic Reactions and Transformations. Sarkar, A.; Santra, S.; Kundu, S. K.; Ghosal, N. C.; Hajra, A. and Majee, A. Synthesis 2015, 47 (10), 1379-1386.

78. Synthesis of imidazo[1,2-a]pyridines: a decade update. Bagdi, A. K.; Santra, S.; Monir, K. and Hajra, A. Chem. Commun. 2015, 51, 1555.

77. Iodine-catalyzed regioselective thiolation of imidazo [1, 2-a] pyridines using sulfonyl hydrazides as a thiol surrogate. Bagdi, A.K.; Mitra, S.; Ghosh, M. and Hajra, A. Organic & Biomolecular chemistry,2015, 13 (11), 3314-3320.

76. Organocatalysis by p-sulfonic acid calix[4]arene: a convenient and efficient route to 2,3-dihydroquinazolin-4(1H)-ones in water. Rahman, M.; Ling, L.; Abdullah, N.; Rauzah Hashim, R. and Hajra, A. RSC Adv., 2015, 5, 7755

75. Palladium-Catalyzed α-Selective Alkenylation of Imidazo[1,2-a]pyridines via Aerobic Cross-Dehydrogenative Coupling Reaction. Ghosh, M.; Naskar, A.; Mitra, S. and Hajra, A. Euro. J. Org. Chem. 2015, 715.

74. FeCl3 oxidative cyclization between 2-aminobenzothiazole and ketone. Mishra, S.; Monir, K.; Mitra, S. and Hajra, A. Org. Lett. 2014, 16, 6084.

73. Copper (I) catalyzed oxidative coupling between 2-aminobenzothiazole and terminal alkyne: Formation of benzothiazine. Mitra, S.; Chakraborty, A.; Mishra, S.; Majee, A. and Hajra, A. Org. Lett. 2014, 16, 5652.

72. Unprecedented catalytic activity of Fe (NO3 nitroimidazopyridines via oxidative amination. Monir, K. Bagdi, A. K.; Ghosh, M. and Hajra, A. Org. Lett. 2014, 16, 4630.

71. Functionalization of sp3 synthesis of hexahydropyrrolo [2, 1-b] oxazoles. Rahman, M.; Bagdi, A. K.; Mishra, S. and Hajra, A. Chem. Commun. 2014, 50, 2951 (highlighted in Synfacts 2014; 10, 0357).

70. Copper(II)-catalyzed aerobic oxidative coupling between chalcone and 2-aminopyridine via C-H Amination: An expedient synthesis of 3-aroylimidazo[1,2a]pyridines. Monir, K.; Bagdi, A. K.; Mishra, S.; Majee, A. and Hajra, A. Adv. Synth. Catal. 2014, 5, 1105.

69. PIDA-Mediated Synthesis of Aromatic Azo Compounds via Oxidative Dehydrogenative Coupling of Anilines: Scope and Mechanism, Monir, K.; Ghosh, M.; Mishra, S.; Majee, A. and Hajra, A. European Journal of Organic Chemistry, 2014, 1096.

68. Catalytic application of task specific ionic liquid on the synthesis of benzoquinazolinone derivatives by a multicomponent reaction. Rahman, M.; Sarkar, A.; Ghosh, M.; Majee, A.and Hajra, A. Tetrahedron. Lett., 2014, 55, 235. (Highlighted Synfacts, 2014, 10, 326).

67. Environmentally benign synthesis and antimicrobial study of novel chalcogenophosphates. Mitra. S.; Mukherjee, S.; Sen. S. K. and Hajra, A. Bioorg. Med. Chem. Lett. 2014, 9, 2198. /ZnI2 catalyzed synthesis of benzo[d]imidazo [2,1-b] thiazole through aerobic •9H2O: Regioselective synthesis of 2-)3 CH bond via redox-neutral domino reaction: Diastereoselective

66. Iron(III)-catalyzed three-component domino strategy for the synthesis of imidazo[1,2-a]pyridines. Santra, S.; Mitra, S.; Bagdi, A. K.; Majee, A. and Hajra, A. Tetrahedron Lett.2014, 55, 5151.

65. Nano indium oxide: An efficient catalyst for one-pot synthesis of 2,3-dihydroquinazolin-4(1H)-ones with a greener prospect. Santra, S.; Rahman, M.; Roy, A.; Majee, A. and Hajra, A. Catal. Commun., 2014, 49,52.

64. Brønsted acidic ionic liquid catalyzed tandem reaction of 4-hydroxy-1-methyl-2-quinolone with chalcone: regioselective synthesis of pyrano[3,2-c]quinolin-2-ones. Bagdi, A. and Hajra, A. RSC Adv., 2014, 4, 23287.

63. Organocatalysis by aprotic imidazolium zwitterion: A dramatic anion–cation cooperative effect on azide-nitrile cycloaddition. Rahman, M.; Roy; Ghosh, A.; Majee, A. and Hajra, A. RSC Adv., 2014, 4, 6116.

62. Zinc Iodide: a mild and efficient catalyst for one-pot synthesis of aminoindolizines via sequential A S. and Hajra, A. RSC Adv., 2014, 4, 6672.

61. Photoinduced electron transfer in metallooctaethylporphyrin(donor)–2nitrofluorene (acceptor) systems in polar acetonitrile liquid medium. Ghosh, M.; Mora, A. K.; Nath, S.; Hajra, A. and Sinha, S. Journal of Photochemistry and Photobiology A: Chemistry, 2014,290, 94.

60. Microwave Assisted Three Component “Catalyst and Solvent Free” Green Protocol: A Highly Efficient and Clean One Pot Synthesis of Tetrahydrobenzo[b]pyrans. Santra, S.;  Rahman, M.; Roy, A.; Majee, A. and Hajra, A. Organic Chemistry International, 2014,10.1155/2014/851924. coupling/cycloisomerization. Mishra, S.; Bagdi, A. K.; Ghosh, M. Sinha,3

59. An improved procedure of Miyashita protocol for the preparation of ureidomethylene derivatives of 1,3-dicarbonyl compounds. Majee, A.; Kundu, S. K.; Santra, S. and Hajra, A. Ind. J. Chem. 2014, 53B, 124.

58. Solvent-free silica-promoted multicomponent condensation: synthesis of highly functionalized piperidines. Das, S.; Bagdi, A. K.; Santra, S.; Majee, A. and Hajra, A. Research on Chemical Intermediates, 2014, 1-15, 10.1007/s11164-014-1774-7

57. Synthesis of polysubstituted quinolines via copper(II)-catalyzed annulation of 2- aminoarylketones with alkynoates. Bagdi, A. K.; Santra, S.; Rahman, M.; Majee, A. and Hajra, A. RSC Adv., 2013, 3, 24034.

56. Metal nano particle in “on-water” organic synthesis: one-pot nano CuO catalyzed synthesis of isoindolo[2,1-a]quinazolines. Santra, S.; Bagdi, A. K.; Majee, A. and Hajra, A. RSC advances,2013, 3, 24931.

55. Copper Catalyzed Synthesis of Imidazo [1, 2 a] pyridines through Tandem Imine Formation‐Oxidative Cyclization under Ambient Air: One‐Step Synthesis of Zolimidine on a Gram‐Scale. Bagdi, A. K.; Rahman, M.; Santra, S.; Majee, A. and Hajra, A. Advanced Synthesis & Catalysis, 2013, 355 (9), 1741.

54. Iron(III)-Catalyzed Cascade Reaction between Nitroolefins and 2- Aminopyridines: Synthesis of Imidazo[1,2-a]pyridines and Easy Access towards Zolimidine. Santra, S.; Bagdi, A. K.; Majee, A. and Hajra, A. Adv. Synth. Catal. 2013, 355 (6), 1065.

53. Nano indium oxide catalyzed tandem cyclization of amidine with nitroolefin. Mitra, S.; Bagdi, A. K.; Majee, A. and A. Hajra. Tetrahedron Letters, 2013, 54, 4982.

52. Regioselective synthesis of pyrano[3,2-c]coumarins via Cu(II)-catalyzed tandem reaction, Bagdi, A. K.; Majee, A.; Hajra, A. Tetrahedron Letters, 2013, 54, 3892.

51. Fluorescence self-quenching of tetraphenylporphyrin in liquid medium. Ghosh, M.; Nath, S.; Hajra, A. And Sinha, S. Journal of Luminescence, 2013, 141, 87.

50. Photophysics of Soret-excited free base tetraphenylporphyrin and its zinc analog in solution. Ghosh, M.; Mora, A. K.; Nath, S.; Chandra, A. K.; Hajra, A. and Sinha, S. Spectrochimica Acta Part A, 2013, 116, 466.

49. Synthesis, structure and catalytic aspects of the palladium (II) complex [PdLCl](where LH= 2-formyl-4-methyl-6-N-ethylpiperidineiminomethylphenol). Das, D.; Maiti, P.; Bagdi, A.K.; Ghosh, T.; Chattopadhay, T.; Das, S.; Hajra, A.; Majee, A. and Zangrando, E. IJC-A, 2013, 52A, 863.

48. Palladium-catalyzed Aerobic Dehydrogenative Aromatization of Cyclohexanone Imines to Arylamine. Hajra, A.; Wei, Y. and Yoshikai, N. Org. Lett. 2012, 14, 5488.

47. Nano indium oxide catalyzed synthesis of benzimidazole in aqueous media. Santra, S.; Majee, A. and Hajra, A. Tetrahedron Letters, 2012, 53, 1974

46. Combination of NH2OH.HCl and NaIO4 oxidation of alcohols to carbonyl compounds. Majee. A.; Kundu, S. K.; Santra, S. and Hajra, A. Tetrahedron Letters, 2012, 53, 4433.

45. A simple and efficient approach for the sulfonation of indoles catalyzed by CuI.Rahman, M.; Ghosh, M.; Hajra, A. and Majee. A. Journal of Sulfur Chemistry, 2013, 34, 342

44. A mild and efficient Synthesis of 1,5- benzo-diazepine derivatives catalysis by acidic ionic liquid in solvent free condition. Roy, A.; Majee, A.and Hajra, A. J. Ind. Chem. Soc.y 2012, 89, 963. : A new and mild oxidizing agent for selective.

43. Zwitterionic-Type Molten Salt-Catalyzed Multi-Component Reactions: One-Pot Synthesis of Substituted Imidazoles under Solvent-Free Conditions. Rahman, M.; Bagdi, A. K.; Kundu, D.; Majee, A. and Hajra, A. Journal of Heterocyclic Chemistry 2012, 49, 1224

42. Indium triflate-catalyzed coupling between nitroalkene and phenol/naphthol: a simple and direct synthesis of benzofuran and naphthofuran via cyclization reaction. Kundu, D.; Majee A. and Hajra, A. Chemistry-An Asian Journal, 2011, 6, 243.

41. Nano indium oxide catalyzed efficient synthesis of propargylamines via C_H and C_Cl bond activations. Rahman, M.; Bagdi, A. K; Majee, A. and Hajra, A. Tetrahedron Letters 2011, 52, 4437-4439. (highlighted in Synfacts, 2011, 1140)

40. Zwitterionic-type molten salt: A mild and efficient organocatalyst for the synthesis of 3- aminoalkylated indoles via three-component coupling reaction. Kundu, D.; Bagdi, A. K.; Majee, A. and Hajra, A. Synlett 2011, 1165.

39. Task-Specific Ionic Liquid-Catalyzed Efficient Couplings of Indoles with 1,3-Dicarbonyl Compounds: An Efficient Synthesis of 3-Alkenylated Indoles. Santra, S.; Majee, A. and Hajra, A. Tetrahedron Letters 2011, 52, 3825

38. A Convenient Synthesis of Coumarins using Reusable Ionic Liquid as Catalyst. Das, S.; Majee, A. and Hajra, A. Green Chem. Lett. Rev. 2011, 4, 349.

37. One-Pot Multicomponent Synthesis of Polyhydroquinolines under Catalyst and Solvent-Free Conditions. Das, S.; Santra, S.; Roy, A.; Urinda, S.; Majee, A. and Hajra, A. Green Chem. Lett. Rev. 2012, 5, 97.

36. Formylation without catalyst and solvent at 800C. Rahman, M.; Majee, A. and Hajra, A. Tetrahedron Letters, 2010, 51, 2896.

35. Zwitterionic-type molten salt: an efficient mild catalyst for synthesis of 2-amidoalkyl and 2-carbamatoalkyl naphthols. . Kundu, D.; Majee, A. and Hajra, A. Catal. Commun. 2010, 11,1157.

34. An efficient and alternative approach for preparation of O-benzoylozimes using benzoyl peroxide. Kundu, S. K., Rahman, M., Hajra, A. and Majee, A. Synth. Commun. 2012, 42,1848.

33. Task-specific ionic liquid catalyzed efficient microwave assisted synthesis of 12-alkyl or aryl-8,9,10,12-tetrahydrobenzo[a]xanthene-11-ones under solvent-free conditions. Kundu, D.; Majee, A. and Hajra, A. Green Chem. Lett. Rev. 2011, 4, 205.

32. Task-specific ionic-liquid catalyzed efficient synthesis of indole derivatives under solvent- free conditions. Das, S.; Rahman, M.; Majee, A. and Hajra, A. Canadian Journal of Chemistry 2010, 88, 150.

31. Microwave-assisted Bronsted acidic ionic liquid promoted one-pot synthesis of heterobicyclic dihydropyrimidinones. Rahman, M.; Majee, A. and Hajra, A. J. Heterocyclic Chemistry, 2010, 47, 1230.

30. Manganese(II) chloride-catalyzed conjugated addition of amines to electron-deficient alkenes in methanol-water medium. Roy, A.; Majee, A. and Hajra, A. The Open Catalysis Journal 2010, 3, 34.

29. TBAB as efficient catalyst in the synthesis of bis(indolyl)methanes. Kundu, S. K.; Islam, S.; Hajra, A.; Majee, A. Russ. J. Org. Chem. 2010, 46, 126.

28. Zwitterionic-type molten salt catalyzed syn-selective aza-Henry reaction: Solvent-free one-pot synthesis of β-nitroamine. Kundu, D.; Debnath R. K.; Majee, A. and Hajra, A. Tetrahedron Letters 2009, 50, 6998.

27. Indium triflate-catalyzed one-pot synthesis of 1-substituted-1H-1,2,3,4-tetrazoles under solvent-free conditions. Kundu, D.; Majee, A. and Hajra, A. Tetrahedron Letters 2009, 50, 2668.

26. An Efficient One-Pot Synthesis of Naphthoxazinones by a Three-Component Coupling of Naphthol, Aldehydes, and Urea Catalyzed by Zinc Triflate. Kundu, D.; Majee, A. and Hajra, A. Journal of Heterocyclic Chemistry 2009, 46, 1019.

25. Indium Triflate-Catalyzed One-Pot Synthesis of 14-Alkyl or Aryl-14H-dibenzo[a,j ] xanthenes in Water. Urinda, S.; Kundu, D.; Majee, A. and Hajra, A. Heteroatom Chemistry 2009, 20, 232.

24. Zinc Chloride as an Efficient Catalyst for Chemoselective Dimethyl Acetalization. Roy, A.; Rahman, M.; Das, S.; Kundu, D.; Kundu, S. K.; Majee, A. and Hajra, A. Synthetic Communications 2009, 39, 590.

23. Environmentally Benign Aqueous Zinc Tetrafluoroborate-Catalyzed One-Pot Biginelli Condensation at Room Temperature. Kundu, S. K.; Majee, A. and Hajra, A. Indian Journal of Chemistry 2009, 48B, 408

22. Synthesis of 1,5-benzothiazepines with microwave irradiation under solvent and catalyst-free conditions. Rahman, M.; Majee, A. and Hajra, A. Journal of Chemical Research 2009,178.

21. A facile synthesis of 2,2,4-trisubstituted-1,2-dihydroquinolines catalyzed by zinc triflate under solvent-free conditions. Kundu, D.; Majee, A.; Hajra, A. Journal of the Chinese Chemical Society, 2008, 55, 1186.

20. L-Proline Catalyzed Enamination of β-Dicarbonyl Compounds under Solvent-Free Conditions. Kundu, D.; Majee, A.; Hajra, A. Chinese Journal of Chemistry, 2008, 26, 1545.

19. Aminohydoxyphosphine Ligand for Copper-Catalyzed Enantioselective Conjugated addition of organozinc to enones. Hajra, A.; Yoshikai, N. and Nakamura, E. Organic Letters, 2006, 8, 4153 (Highlighted in Sunfacts, 2007, 67)

18. Synthesis of Chiral α-Fluoroketones through Catalytic Enantioselective Decarboxylation. Nakamura, M.; Hajra, A.; Endo, K. and Nakamura, E. Angew. Chem. Int. Ed. 2005, 44, 7248. (selected as Very Important Paper). Synfacts 2006 (01), 0050-0050.

17. Dichloroindium hydride (Cl2InH): A convenient reagent for stereoselective reduction of vic-dibromides to (E) alkenes. Ranu, B. C.; Das, A.; Hajra, A. Synthesis, 2003, 1012.

16. Efficient microwave-assisted synthesis of quinolines and dihydroquinolines under solvent-free condition. Ranu*, B. C.; Hajra, A.; Dey, S. S. and Jana, U. Tetrahedron, 2003, 59, 813.

15. Highly efficient acylation of alcohols by acetic anhydride under solvent free and catalyst free condition: a practical and green alternative. Ranu, B. C.; Dey, S. S.; Hajra, A. Green Chemistry, 2003, 5, 44.

14. Catalysis by an ionic liquid. Efficient conjugate addition of thiols to electron deficient alkenes catalyzed by molten tetrabutylammonium bromide under solvent-free condition. Ranu, B. C.; Dey, S. S. and Hajra, A. Tetrahedron, 2003, 59, 2417.

13. A practical and green approach towards synthesis of Dihydropyrimidinones without any solvent and catalyst. Ranu, B. C.; Hajra, A. and Dey, S. S. Organic Process Research & Development, 2002, 6, 817.

12. Solvent free, catalyst free Michael-type addition of amines to electron deficient alkenes. Ranu, B. C.; Dey, S. S. and Hajra, A. ARKIVOC, 2002, 76.

11. A simple and green procedure for the synthesis of a- amino phosphonate by a one pot three- component condensation of carbonyl compound, amine and diethyl phosphite without solvent & catalyst. Ranu, B. C. and Hajra, A.Green Chemistry, 2002, 4, 551.

10. Indium trichloride catalyzed one-step synthesis of amino nitriles by a three-component condensation of carbonyl compounds, amines and potassium cyanide Ranu, B. C.; Dey, S. S. and Hajra, A. Tetrahedron, 2002, 58, 2529.

9. Unusual cleavage of ethers by thiophenol on the surface of silica gel impregnated with indium chloride under microwave irradiation. An efficient procedure for the synthesis of thioethers through transthioetherification. Ranu, B. C.; Samanta, S. and Hajra, A. Synlett, 2002, 987.

8. Indium triiodide catalysed one-step conversion of tetrahydropyranyl ether to acetates with high selectivity. Ranu, B. C. and Hajra, A. J. Chem. Soc. Perkin Trans.1, 2001, 355.

7. Highly selective one-pot conversion of THP and MOM ethers to acetates by indium triiodide-catalysed deprotection and subsequent transesterification by ethyl acetate. Ranu, B. C. and Hajra, A. J. Chem. Soc., Perkin Trans. 1, 2001, 2262.

6. Synthesis of alkyl-substituted pyrroles by three-component coupling of carbonyl compound, amine and nitro-alkane/alkene on a solid surface of silica gel/alumina under microwave irradiation. Ranu, B. C. and Hajra, A. Tetrahedron, 2001, 57, 4767.

5. Indium Mediated Allylation of β -Keto Phosphonates. Ranu, B. C.; Samanta, S. and Hajra, A.; J. Org. Chem., 20001, 66, 7519.

4. Microwave-Assisted Synthesis of Substituted Pyrroles by a Three-Component Coupling of a, b-Unsaturated Carbonyl Compounds, Amines and Nitroalkanes on the Surface of Silica Gel. Ranu, B. C.; Hajra, A. and Jana, U. Synlett, 2000, 75.

3. Microwave-assisted simple synthesis of quinolines from anilines and alkyl vinyl ketones on the surface of silica gel in the presence of indium (III) chloride. Ranu, B. C.; Hajra, A. and Jana, U. Tetrahedron Letters, 2000, 41, 531.

2. Indium(III) Chloride-Catalyzed One-Pot Synthesis of Dihydropyrimidinones by a Three-Component Coupling of 1,3-Dicarbonyl Compounds, Aldehydes, and Urea: An Improved Procedure for the Biginelli Reaction. Ranu, B. C.; Hajra, A. and Jana, U. J. Org. Chem.,2000, 65, 6270.

1. General Procedure for the Synthesis of α-Amino Phosphonates from Aldehydes and Ketones Using Indium (III) Chloride as a Catalyst. Ranu, B. C.; Hajra, A. and Jana, U.Organic letters, 1999, 1, 1141.

ABSTRACT PUBLICATION:

2. Solvent-free, catalyst-free reactions: A new approach toward green technology. Ranu, Brindaban C.; Hajra, Alakananda. 224th USA), 2002, CHED-286. ACS National Meeting (Boston,

1. Synthetic studies on polycyclic aromatic natural products. Hauser, Frank, M.; Hu, Xingding; Dorsch, Warren; Hajra, Alakananda. 31st meeting, Saratoga Springs, N.Y, USA 2003, 184