A Convenient Synthesis Of 1-Acyl Indolizines by 1,3-Dipolar Cycloaddition Reactions of Pyridinium Ylides and α,β-Unsaturated Aldehydes or Ketones in the Presence of Tetrakis-Pyridine Cobalt Dichromate
作者:Xuechun Zhang、Weili Cao、Xudong Wei、Hongwen Hu
DOI:10.1080/00397919708006070
日期:1997.4
Abstract In the presence of tetrakispyridine cobaltdichromate (CoPy4(HCrO4)2), pyridinium ylides and α,β-unsaturated aldehydes or ketones undergo 1,3-dipolarcycloaddition reactions followed by in situ aromatization to give 1-acyl substituted indolizines in moderate to good yields.