Synthesis of Z and E-(2',5'-dimethoxyphenyl)-methylene-butyrolactones  

作　　者：Yong Ying JIANG2 Zhi Yun LIN Li Ya ZHU1 (1Dept. Of medicinal chemistry, College of pharmacy, Rutgers University, Piscataway, NJ, U.S.A. Institute of Materia Medica, Peking Union Medical College and) Chinese Academy of Medical Sciences, Beijing 100050 

出　　处：《Chinese Chemical Letters》2000年第2期109-110,共2页中国化学快报（英文版）

摘　　要：A pair of Z and E isomers of cyclization of γ-ketoacid 7, which was prepared in six steps from 2,5-dimethoxyphenyl acetic acid 1, gave a pair of Z(20%) and E (4%) isomers of (2,5-dimethoxyphenyl)-methylene-butyrolactonesA pair of Z and E isomers of cyclization of γ-ketoacid 7, which was prepared in six steps from 2,5-dimethoxyphenyl acetic acid 1, gave a pair of Z(20%) and E (4%) isomers of (2,5-dimethoxyphenyl)-methylene-butyrolactones

关 键 词：BUTYROLACTONE γ-keto-acid LACTONIZATION ferric sulfate hydrate. 

分 类 号：O623[理学—有机化学]