The application of the sulphide contraction to the synthesis of some simple pyrrolidine alkaloids
作者:Rodolfo. Ghirlando、Arthur.S Howard、Ruth.B Katz、Joseph.P Michael
DOI:10.1016/s0040-4020(01)91297-9
日期:1984.1
The alkaloids (±)-hygrine, (±)-dehydrodarlinine, (±)-dehydrodarlingianine, and (±)-N-methylruspolinone have been synthesised by selective reduction of vinylogous amides formed by sulphide contraction of the salts prepared by reaction of N-methyl-2-thiopyrrolidone with the appropriate bromomethyl ketones.