Stereoselective Chelate-Controlled Addition of Grignard Reagents to Unsaturated Medium-Ring Heterocycles
作者:Jeffrey A. Adams、Nicola M. Heron、Ann-Marie Koss、Amir H. Hoveyda
DOI:10.1021/jo981745e
日期:1999.2.1
heteroatom, react with Grignardreagents with high levels of regio- and stereochemical control. The substrates can be prepared in the optically pure form by the Zr-catalyzed kinetic resolution; subsequent reaction with alkylmagnesium halides leads to the formation of optically pure alkylation products. The studies outlined herein probe the influence of the length and position of the heteroatom side