AbstractHerein we report the first synthesis of tetrahydrocarbazole embedded styrene atropisomers via the reaction between 1‐(aryl‐ethynyl)‐naphthalen‐2‐ol and 2,3,4,9‐tetrahydro‐1H‐carbazole. The reaction proceeds through in situ vinylidene ortho‐quinone methide (VQM) intermediate formation. The styrene derivatives were obtained in good to high yields with high diastereoselectivities with a catalytic amount of PTSA. A catalytic asymmetric version is also reported.
摘要我们在此报告了通过 1-(芳基
乙炔基)-
2-萘酚和 2,3,4,9- 四氢-1H-
咔唑之间的反应首次合成嵌入
苯乙烯的四氢
咔唑异构体。反应通过原位亚
乙烯基原醌
甲醚(VQM)中间体的形成进行。在
PTSA 的催化下,
苯乙烯衍
生物以良好到较高的产率和较高的非对映选择性获得。此外,还报告了一种催化不对称版本。