Tetrahedron p. 4155 - 4164 (1991)
Update date:2022-08-04
Topics:
Huizenga, R. H.
Pandit, U. K.
Michael adducts of tryptamine, N(1)-methyltryptamine and tryptophane with acrylic esters react with substituted imidazolidines (N(5),N(10)-methylenetetrahydrofolate models) to give enaminones which cyclize under influence of Lewis acid, to give mixtures of tetrahydro-1H-pyrido<3,4-b>indoles and pyrrolo<2,3-d>carbazoles.The influence of the nature of Lewis acid on product formation is discussed.The synthesis of an enantiomerically pure pyrrolo<2,3-d>carbazole system is reported.
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