methyl 2-(2-acetylbenzyl)-2-(benzyloxy)cyclopropanecarboxylate 在
三乙基硅基三氟甲磺酸酯 作用下,
以
硝基甲烷 为溶剂,
反应 2.0h,
生成 methyl 8-(benzyloxy)-5-methyl-6,7,8,9-tetrahydro-5H-5,8-epoxybenzo[7]annulene-6-carboxylate 、 methyl 8-(benzyloxy)-5-methyl-6,7,8,9-tetrahydro-5H-5,8-epoxybenzo[7]annulene-6-carboxylate