One-pot multicomponent synthesis of polysubstituted indolizines
摘要:
Concise and efficient four-component tandem approaches to polysubstituted indolizines have been developed under metal-free and mild aerobic conditions in refluxing acetonitrile. The mechanism of the novel reactions was proposed involving the formation of pyridinium ylides and alpha,beta-unsaturated ketones with subsequent 1,3-dipolar cycloaddition and aromatization reaction. (C) 2011 Elsevier Ltd. All rights reserved.