α-Acylamino radical cyclizations using allenes and vinylsilanes as addends: applications to the synthesis of (+)-heliotridine and (-)-dihydroxyheliotridine
作者:Jeffrey M. Dener、David J. Hart
DOI:10.1016/s0040-4020(01)86072-5
日期:1988.1
Total syntheses of the pyrrolizidine bases (+)-heliotridine (4) and (-)-dihydroxyheliotridane (5) from (S)-3-acetoxysuccinimide are described. The syntheses of 4 and 5 revolve around free radical cyclizations involving the use of allenes and vinylsilanes, respectively, as addends.