Synthesis of some hexahydroazocino[4,3-b]indoles, a tetra- and two hexahydropyrrolo[1′,2′ : 1,2]pyrrolo[3,4-b]indoles, and a tetrahydropyrrolo[2′,1′ : 5,1]imidazo[3,4-a]indole. Crystal structure determination of 1,2,3,4-tetrahydro-2-phenoxycarbonyl-7-phenylsulphonylazocino[4,3-b]indol-6 (5H)-one
作者:Jonathan D. Street、Martin Harris、David I. Bishop、Frank Heatley、Roy L. Beddoes、Owen S. Mills、John A. Joule
DOI:10.1039/p19870001599
日期:——
also replaced with other urethane groups. Cleavage, of the urethanes gave either a pyrrolo[1′2′ : 1,2]pyrrolo[3,4-b]indole or a 3-formyl-2-(4,5-dihydropyrrol-2-yl)indole. Reaction of 2-indol-2-ylpyrrolidine with formaldehyde in methanolic methoxide produced a pyrrolo[2′,1′ : 5,1]imidazo[3,4-a] indole.
六氢偶氮噻吩并[4,3- b ]吲哚(2a - c)是由1-苯基磺酰基吲哚通过在C-2上引入适当的侧链,通过锂化反应,然后进行分子内曼尼希环化反应而合成的。然后由(2c)制备1,2,3,4-四氢-2-苯氧基羰基-7-苯基磺酰基偶氮基[4,3- b ]吲哚-6(5 H)-一(2e),并通过X射线法 (2c)中的苄基也被其他氨基甲酸酯基取代。氨基甲酸酯的裂解产生吡咯并[1'2':1,2,]吡咯并[3,4- b]吲哚或3-甲酰基-2-(4,5-二氢吡咯-2-基)吲哚。2-吲哚-2-基吡咯烷与甲醛在甲醇甲醇中的反应生成吡咯并[2',1':5,1]咪唑并[3,4- a ]吲哚。