Carbonic acid allyl ester 2,5-dimethyl-4-phenylsulfanyl-cyclopenta-1,4-dienyl ester 在
tris(dibenzylideneacetone)dipalladium(0) * CHCl3 (R,R)-bidentate phosphine ligand 作用下,
以
四氢呋喃 为溶剂,
生成 (R)-5-Allyl-2,5-dimethyl-3-phenylsulfanyl-cyclopent-2-enone 、 (S)-5-Allyl-2,5-dimethyl-3-phenylsulfanyl-cyclopent-2-enone