methyl 2-(2-acetylphenethyl)-2-methoxycyclopropanecarboxylate 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-methoxy-5-methyl-5,6,7,8,9,10-hexahydro-5,8-epoxybenzo[8]annulene-6-carboxylate 、 methyl 8-methoxy-5-methyl-5,6,7,8,9,10-hexahydro-5,8-epoxybenzo[8]annulene-6-carboxylate