作者:David StC. Black、Michael C. Bowyer、Naresh Kumar
DOI:10.1016/s0040-4020(97)00516-4
日期:1997.6
Some 2-(7-indolyl)pyrroles have been synthesised from the 4,6-dimethoxyindoles 4, 19 and 20 using the modified Vilsmeier reaction. The indolylpyrrole 8 was formed by dehydrogenation of the 2-(7-indolyl)pyrroline 7, which was obtained from indole 4, methyl pyrrolidin-2-one-5-carboxylate and bromopyrrolidin-2-one 11 and phosphoryl chloride to give the 3-chloro-2-(7-indolyl)pyrrolines 12, 29 and 30, which undergo subsequent dehydrohalogenation to give the indolylpyrroles 13, 33 and 34. (C) 1997 Published by Elsevier Science Ltd.