The Sulfinyl Moiety as an Internal Nucleophile. 2. Stereoselective Synthesis of (−)-Galantinic Acid via 1,3-Asymmetric Induction
作者:Sadagopan Raghavan、S. Ramakrishna Reddy
DOI:10.1021/jo026892y
日期:2003.7.1
A stereoselective synthesis of (-)-galantinic acid is disclosed. The key steps include hydrolytic kinetic resolution of a racemic epoxide and regio- and stereoselective heterofunctionalization of an olefin, using a pendant sulfinyl group as the nucleophile. The participation of the sulfinyl group was unambiguously proven by conducting the reaction in the presence of H(2)(18)O.
公开了(-)-没食子酸的立体选择性合成。关键步骤包括使用亚磺酰基侧基作为亲核试剂,进行消旋环氧化物的水解动力学拆分以及烯烃的区域和立体选择性杂官能化。通过在H(2)(18)O存在下进行反应,明确证明了亚磺酰基的参与。