Regioselective synthesis of pentathiepino-fused pyrroles and indoles
作者:Lidia S. Konstantinova、Oleg A. Rakitin、Charles W. Rees、Stanislav A. Amelichev
DOI:10.1070/mc2004v014n03abeh001912
日期:2004.1
Treatment of simple pyrroles, pyrrolidines and indoles with S2Cl2 and Dabco in chloroform at room temperature gives their fused pentathiepino derivatives 4, 6 and 8 in extensive cascade reactions; the reaction profile is changed and the regioselectivity enhanced when the S2Cl2 and Dabco are premixed and equilibrated before the heterocycle is added.