(E)-4-Oxo-pent-2-enoic acid (E)-3-benzo[b]thiophen-2-yl-allyl ester 以
甲苯 为溶剂,
反应 12.0h,
生成 (3aR,4S,4aS,10aS)-4-Acetyl-3a,4,4a,10a-tetrahydro-1H-2-oxa-9-thia-cyclopenta[b]fluoren-3-one 、 (3aS,4R,10aR)-4-Acetyl-3a,4,10,10a-tetrahydro-1H-2-oxa-9-thia-cyclopenta[b]fluoren-3-one