SOLVENT-FREE SYNTHESES OF SALICYLALDIMINES ASSISTED BY MICROWAVE IRRADIATION
摘要:
A microwave-assisted condensation of salicylaldehyde and aryl amines without solvent were efficiently performed to form a series of salicylaldimines in high yields, which were confirmed by IR, H-1 NMR, C-13 NMR and elemental analyses. The microwave-assisted condensation provided a convenient environmental-friendship methodology for syntheses of Schiff-base in organic syntheses.
Design, Synthesis and In Vitro Antimalarial Evaluation of New Quinolinylhydrazone Derivatives
作者:Le Thi Thuy、Hoang Xuan Tien、Vu Dinh Hoang、Tran Khac Vu
DOI:10.2174/157018012799079815
日期:2012.2.1
A series of novel quinolinylhydrazones (5a-f) was synthesized by the condensation reaction of 2,6-diarylsubstituted piperidin-4-ones (4a-f) with 7-chloro-4-hydrazinoquinoline (2). Novel quinolinylhydrazones containing Shiff bases 8a-f and 11a-f were obtained via the condensation of Shiff bases 7a-f and 10a-f with 7-chloro-4-hydrazinoquinoline. These synthesized hydrazones were screened for their in vitro antimalarial activities to chloroquine - sensitive (T96) and chloroquine – resistant (K1) strains of P.falciparum. Among the synthesized compounds, 11a exhibited strong antimalarial activity at IC50 of 103.4 ng/mL and 18.76 ng/mL to both strains of P.falciparum, respectively.
obtained by conventional solution-based methods. Two out of the three polymorphs were synthesized by mechanochemical syntheses, under solvent-free conditions. Herein, we report a study of the dependence of the composition of solvent, the crystallization temperature and impurities on the outcome of the synthesis of Schiff base polymorphs. We report the important role of seed crystals in directing the supramolecular
De, Rajib Lal; Banerjee, Indrajit; Samanta, Chitra, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1999, vol. 38, # 4, p. 373 - 376
作者:De, Rajib Lal、Banerjee, Indrajit、Samanta, Chitra、Mukherjee, Alok K.
DOI:——
日期:——
De Lal; Banerjee; Mukherjee, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2000, vol. 39, # 10, p. 1050 - 1054
作者:De Lal、Banerjee、Mukherjee、Guha
DOI:——
日期:——
De Lai, Rajib; Mukhcrjee, Jaydcep; Mandal, Mahuya, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2009, vol. 48, # 4, p. 595 - 598