Amidine derived 1,3-diazabuta-1,3-dienes as potential antibacterial and antifungal agents
摘要:
Several 1-aryl-2-phenyl-4-piperidino-4-thioalkyl-1,3-diazabuta-1,3-dienes were prepared by the treatment of N-arylimino isothiocyanate with piperidine followed by S-alkylation with alkyl iodides in the presence of dry acetone and potassium hydroxide. The constitution of the products was supported by IR, PMR and mass spectral study. The compounds synthesized were tested in in vitro against E coli, S. aureus, P. aeruginosa, B. cereus and B. subtilis and fungal stains, Candida albicans and Aspergillus niger. Standard drugs were also tested under identical conditions for comparing the results. (C) 2004 Elsevier Ltd. All rights reserved.
[4+2] cycloaddition reactions of various 1,3-diaza-1.3-Butadienes with ketenes
作者:Sujit N. Mazumdar、Mohinder P. Mahajan
DOI:10.1016/s0040-4020(01)86423-1
日期:1991.1
[4+2] cycloaddition reactions of 1-aryl-4-dimethylainino-1,3-diaza-1, 3-butadienes (), 1 -aryl-4-dimethylamino-2-methylthio-1, 3-diaza-1, 3-butadienes (), 1-aryl-4-methylthio-2-phenyl-4-sec. amino-1, 3-diaza-1, 3-butadienes () and 4, 4-bis(sec.amino)-1,2-diphenyl-1, 3-diaza-1, 3-butadienes () with monophenyiketene and similar cycloaddition reactions of , and with monochloroketene are described.
Investigations on the Reactions of Thioamides and Related 1,3-Diazabuta-1,3-dienes with Dimethyl Acetylenedicarboxylate: Synthesis of Novel Functionalized Heterocycles