Synthesis of tryptophan derivatives via a palladium-catalyzed N-heteroannulation
作者:Christopher A. Dacko、Novruz G. Akhmedov、Björn C.G. Söderberg
DOI:10.1016/j.tetasy.2008.10.032
日期:2008.12
Tryptophan derivatives were prepared from 2-(2-nitrophenyl)-2-propen-1-yl substituted pyrazines, derived from Schöllkopf’s chiralauxiliary, using a palladium-catalyzed, carbon monoxide-mediated reductive N-heteroannulation reaction. A diastereomeric ratio of products ranging from 4:1 to >30:1 was observed.