Task-specific ionic liquid-catalyzed efficient couplings of indoles with 1,3-dicarbonyl compounds: an efficient synthesis of 3-alkenylated indoles
作者:Sougata Santra、Adinath Majee、Alakananda Hajra
DOI:10.1016/j.tetlet.2011.05.069
日期:2011.7
Direct alkenylation of indoles at the 3-position with 1,3-dicarbonyl compounds under Bronsted acidic ionic liquid catalysis has been developed. The yields were excellent, and the catalyst can be reused at least six times without noticeable loss of catalytic activity. (C) 2011 Elsevier Ltd. All rights reserved.