methyl 2-(4-methoxyphenyl)-1-(thiophene-2-carbonyl)cyclopropanecarboxylate 在
indium(III) triflate 作用下,
以
二氯甲烷 为溶剂,
反应 4.5h,
生成 methyl 4-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-6-carboxylate 、 methyl 4-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-6-carboxylate