丙烯醛 、 N-methyl-2-[(Z)-2-phenylvinyl]-1H-indole 在
三氟甲磺酸 、 ((2R,4R)-4-(benzyloxy)pyrrolidin-2-yl)diphenylmethanol 、
碳酸氢钠 作用下,
以
甲苯 为溶剂,
反应 48.0h,
生成
(2R,3S)-9-methyl-2-phenyl-2,3,4,9-tetrahydro-1H-carbazole-3-carbaldehyde 、 (2S,3R)-9-methyl-2-phenyl-2,3,4,9-tetrahydro-1H-carbazole-3-carbaldehyde 、 9-methyl-2-phenyl-2,3,4,9-tetrahydro-1H-carbazole-3-carbaldehyde