Solvent free microwave synthesis and evaluation of antimicrobial activity of pyrimido[4,5-b]- and pyrazolo[3,4-b]quinolines
作者:Senniappan Thamarai Selvi、Vetrivel Nadaraj、Sellappan Mohan、Raju Sasi、Manoharan Hema
DOI:10.1016/j.bmc.2006.01.048
日期:2006.6
A series of 2-oxopyrimido[4,5-b]-, 2-thio[4,5-b]-, 1-(p-tosyl)pyrazolo[3,4-b]- and 1-(2',4'-dinitropheiiyl)pyrazolo[3,4-b]-quinolines have been synthesized in good to excellent yields by environmentally benign solvent free microwave-induced techniques involving the condensation of 2-chloro-3-formylquinolines with urea, thiourea, p-toluenesulfonylhydrazide and 2,4-dinitrophenylhydrazine, respectively, using PTSA as a catalyst. All the synthesized compounds were evaluated for their antibacterial and antifungal activities. Most of the compounds showed the best activity against Escherichia coli and Pseudomonas aeruginosa. (c) 2006 Elsevier Ltd. All rights reserved.