An Eco‐friendly Catalytic System for One‐pot Multicomponent Synthesis of Diverse and Densely Functionalized Pyranopyrazole and Benzochromene Derivatives
作者:U. P. Patil、Rupesh C. Patil、Suresh S. Patil
DOI:10.1002/jhet.3564
日期:2019.7
An external base‐free, efficient, cost‐effective, and environmentally benign protocol has been developed for the one‐pot multicomponent synthesis of highly functionalized pyranopyrazoles and benzochromenes using water extract of Agave americana (century plant) leaf ash, a waste‐derived catalyst, at room temperature. Mild reaction conditions, high yield, easy isolation of products, eco‐friendly standards
已开发了一种外部无碱,高效,经济高效且环保的方案,用于使用龙舌兰(世纪植物)叶灰(一种废物衍生的催化剂)的水提取物,单锅多组分合成高度功能化的吡喃并吡喃和苯并二甲基苯酮。 , 在室温下。温和的反应条件,高收率,易于分离的产品,环保标准,无色谱分离是该方案的主要特点。