Polyvinylpolypyrrolidone-supported triflic acid (PVPP·OTf) as a new, efficient, and recyclable heterogeneous catalyst for the synthesis of bis-indolyl methane derivatives
作者:Samad Khaksar、Mahmoud Tajbakhsh、Milad Gholami
DOI:10.1016/j.crci.2013.07.014
日期:2014.1
Résumé A simple, inexpensive, environmentally friendly and efficient route for the synthesis of bis-indolyl methane derivatives by the reaction of indole or N-methyl indole with aldehydes using polyvinylpolypyrrolidone-supported triflic acid (PVPP·OTf) as a catalyst is described. PVPP·OTf catalyst is air-stable, heterogeneous, cost-effective, easy to handle, and easily removed from the reaction mixtures.
简历
简单、经济、环保且高效的合成方法--利用聚乙烯基聚吡咯烷酮负载三氟甲磺酸钡(PVPP·OTf)作为催化剂,通过吲哚或N-甲基吲哚与醛反应合成双吲哚基甲烷衍生物。PVPP·OTf催化剂具有空气稳定性、非均相性、成本效益高、易于操作,并且能从反应混合物中轻松去除。