A versatile and convenient method for the synthesis of substituted benzo [a] carbazoles and pyrido [2, 3-a] carbazoles

CB de Koning, JP Michael, AL Rousseau

Index: De Koning, Charles B.; Michael, Joseph P.; Rousseau, Amanda L. Journal of the Chemical Society, Perkin Transactions 1, 2000 , # 11 p. 1705 - 1713

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Citation Number: 47

Abstract

Treatment of 2-(o-tolyl)-or 2-(3-methyl-2-pyridyl)-substituted indole-3-carbaldehydes with potassium tert-butoxide in DMF at 70–80° C with simultaneous irradiation from a 400 W high- pressure mercury lamp afforded benzo [a] carbazoles and pyrido [2, 3-a] carbazoles respectively in good yields.