Abstract: | In the reaction of 2-aminoindoles with -diketones, depending on the basicity of the medium, cyclization may take place with the participation of position 1 or 3 and the formation of the corresponding -carbolines, pyrimidoindoles, or mixtures of them.For Communication (XXXVI), see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1043–1046, August, 1973. |