Enantioselective Approach to Securinega Alkaloids. Total Synthesis of Securinine and (−)-Norsecurinine
作者:David González-Gálvez、Elena García-García、Ramon Alibés、Pau Bayón、Pedro de March、Marta Figueredo、Josep Font
DOI:10.1021/jo901059n
日期:2009.8.21
The most representative securinega alkaloids have been synthesized through a new strategy involving the palladium-catalyzed enantioselective allylation of a cyclic imide, a vinylogous Mannich reaction, and a ring-closing metathesis process, as the key steps. The diastereoselectivity of the vinylogous Mannich reaction was in partial agreement with DFT theoretical calculations performed in a model system