A facile synthesis of 4-, 5- and 6-chloromethyl-1H-indole-2-carboxylates: replacement of a sulfonic acid functionality by chlorine
作者:Béla Pete、Gyula Parlagh
DOI:10.1016/j.tet.2004.07.038
日期:2004.9
Valuable new synthetic intermediates, 4-, 5- or 6-chloromethyl-1H-indole-2-carboxylates, were prepared by the facile elimination of SO2 from 2-ethoxycarbonyl-1H-indole-4-, 5- or 6-methanesulfonic acids, respectively, easily accessible by Fischer-type indolization.
通过从2-乙氧基羰基-1 H-吲哚-4-,5-或6轻松消除SO 2制备了有价值的新型合成中间体4-,5-或6-氯甲基-1 H-吲哚-2-羧酸-甲磺酸分别可以通过费歇尔型吲哚酸容易地获得。