Synthesis of a library of 1,2,3,7-tetrasubstituted indolizines using poly(ethylene glycol) as soluble support
作者:Guizhou Yue、Zuxing Chen、Guichun Yang
DOI:10.1002/jhet.5570430340
日期:2006.5
A library of 1,2,3,7-tetrasubstitutedindolizines has been synthesized usingpoly(ethyleneglycol) (PEG) as soluble polymer support. The PEG-bound pyridinium salts reacted with alkenes or alkynes in the presence of Et3N via 1,3-dipolar cycloaddition to give PEG-bound indolizine derivatives, which were cleaved by 1 % KCN/MeOH to afford 1,2,3,7-tetrasubstitutedindolizines in good to excellent yields