Enantioselective Organocatalytic Intramolecular Aza-Michael Reaction: a Concise Synthesis of (+)-Sedamine, (+)-Allosedamine, and (+)-Coniine
作者:Santos Fustero、Diego Jiménez、Javier Moscardó、Silvia Catalán、Carlos del Pozo
DOI:10.1021/ol702447y
日期:2007.12.1
ee's when Jorgensen catalyst IV was used in the process, giving rise to the enantioselective formation of several five- and six-membered heterocycles. The developed methodology was applied to the synthesis of three piperidine alkaloids.
Improved Protocol for Asymmetric, Intramolecular Heteroatom Michael Addition Using Organocatalysis: Enantioselective Syntheses of Homoproline, Pelletierine, and Homopipecolic Acid
作者:Erik C. Carlson、Lauren K. Rathbone、Hua Yang、Nathan D. Collett、Rich G. Carter
DOI:10.1021/jo800749t
日期:2008.7.1
indoline, and piperidine rings using an organocatalyzed, intramolecular heteroatom Michael addition is described. Application to the enantioselective synthesis of homoproline, homopipecolic acid, and pelletierine has been accomplished.