Synthesis of a novel class of benzofurans via a three-component, regiospecific intramolecular heterocylization reaction
作者:Bahador Karami、Saeed Khodabakhshi、Fatemeh Hashemi
DOI:10.1016/j.tetlet.2013.03.124
日期:2013.7
A new, convenient, and environmentally benign three-component synthesis of a novel class of benzofurans is developed by condensing different arylglyoxals, benzamide, and phenolic substrates under solvent-free conditions. These reactions are catalyzed by tungstate sulfuric acid (TSA) as a safe, clean, and recyclable solid acid. The method is operationally simple and provides access to a variety of 2-aryl-3-benzamido
通过在无溶剂条件下缩合不同的芳基乙二醛,苯甲酰胺和酚类底物,开发了新型,方便且对环境无害的新型苯并呋喃三组分合成方法。钨酸硫酸盐(TSA)催化这些反应为安全,清洁和可回收的固体酸。该方法操作简单,可提供高产率至优异产率的各种2-芳基-3-苯甲酰胺基苯并呋喃。