期刊
CATALYSIS COMMUNICATIONS
卷 8, 期 12, 页码 1865-1870出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2007.02.020
关键词
ZrOCl2 center dot 8H(2)O; Benzoxazoles; benzothiazoles; Benzimidazoles; oxazolo[4,5-b]pyridines; orthoesters
A new and efficient method for the preparation of benzoxazoles, benzothiazoles, benzimidazoles and oxazolo[4,5-b]pyridines from reactions of orthoesters with o-substituted aminoaromatics and 2-amino-3-hydroxypyridine in the presence of catalytic amounts of the moisture stable, inexpensive ZrOCl2.8H(2)O under solvent-free conditions is presented. This new protocol has the advantages of easy availability, easy handling, stability, reusability and eco-friendly of the catalyst, high yields, very short reaction times, solvent-free reaction conditions, simple experimental and work-up procedure. (c) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据