Imidazoles from nitroallylic acetates and α-bromonitroalkenes with amidines: synthesis and trypanocidal activity studies
作者:Elumalai Gopi、Tarun Kumar、Rubem F. S. Menna-Barreto、Wagner O. Valença、Eufrânio N. da Silva Júnior、Irishi N. N. Namboothiri
DOI:10.1039/c5ob01444a
日期:——
Cascade reactions of amidines with nitroallylic acetates and α-bromonitroalkenes provide potentially bioactive imidazoles in good to excellent yields in most cases. While 2,4-disubstituted imidazol-5-yl acetates are formed in the first case, 2,4-disubstituted imidazoles, bearing no substituent at position 5, are the products in the second case. These two series of imidazoles, viz. 2,4,5-trisubstituted
A facile and eco-friendly synthesis of diarylthiazoles and diarylimidazoles in water
作者:Dalip Kumar、N. Maruthi Kumar、Gautam Patel、Sudeep Gupta、Rajender S. Varma
DOI:10.1016/j.tetlet.2011.02.069
日期:2011.4
A simple, efficient and high yielding greener protocol for the synthesis of substituted thiazoles and imidazoles is described that utilizes the reaction of readily available alpha-tosyloxy ketones with variety of thioamides/amidines in water. (C) 2011 Elsevier Ltd. All rights reserved.