(E)-4-(2-Chloro-phenyl)-4-oxo-but-2-enoic acid (E)-3-(5-methyl-benzo[b]thiophen-2-yl)-allyl ester 以
甲苯 为溶剂,
反应 20.0h,
生成 (3aR,4S,4aS,10aS)-4-(2-Chloro-benzoyl)-6-methyl-3a,4,4a,10a-tetrahydro-1H-2-oxa-9-thia-cyclopenta[b]fluoren-3-one 、 (3aS,4R,10aR)-4-(2-Chloro-benzoyl)-6-methyl-3a,4,10,10a-tetrahydro-1H-2-oxa-9-thia-cyclopenta[b]fluoren-3-one