Simple and Clean Procedure for Three-Component Syntheses of Spiro{pyrido[2,1-<i>b</i>]benzothiazole-3,3′-indolines} and Spiro{thiazolo[3,2-<i>a</i>]pyridine-7,3′-indolines} in Aqueous Medium
作者:Essam M. Hussein、Ahmed M. El-Khawaga
DOI:10.1002/jhet.908
日期:2012.11
A simple and efficient one‐pot three component synthesis of spiropyrido[2,1‐b]benzothiazole‐3,3′‐indoline} and/or spirothiazolo[3,2‐a]pyridine‐7,3′‐indoline} derivatives were carried out by the reaction of 2‐mercaptoaniline and/or mercaptoacetic acid, malononitrile, and a series of 2‐oxoindoline‐3‐ylidines in aqueous medium. This method is of great value because of its environmentally benign character
简单高效的螺rid pyrido [ 2,1 – b ]苯并噻唑-3,3'-二氢吲哚}和/或螺3噻唑[3,2 - a ]吡啶-7,3'-的一锅三组分合成indoline}衍生物是通过2-巯基苯胺和/或巯基乙酸,丙二腈和一系列2-oxoindoline-3-ylidines在水性介质中反应而生成的。该方法由于其对环境有益的特性,高产量的处理和易于处理而具有很大的价值。