(2Z,4E)-methyl 2-(3-methyl-1H-indole-1-carbonyl)-5-phenylpenta-2,4-dienoate 在
indium(III) triflate 作用下,
以
甲苯 为溶剂,
反应 1.0h,
生成 (E)-methyl 9-methyl-3-oxo-1-styryl-2,3-dihydro-1H-pyrrolo[1,2-a]indole-2-carboxylate 、 (E)-methyl 9-methyl-3-oxo-1-styryl-2,3-dihydro-1H-pyrrolo[1,2-a]indole-2-carboxylate