Synthesis of 2,3′-Diindolylmethanes and Substituted Indolo[3,2-b]carbazoles

Abstract

Three different synthetic routes to substituted 2,3′-diindolylmethanes, and the syntheses of substituted indolo[3,2-b]carbazoles are described. The first rigid proof of an acylation in the 2-position of a 1,3-unsubstituted indole is also presented in the form of an X-ray structure.

Key words

bisindoles - acylations - Lewis acids - aryl hydrocarbon receptor - indolo[3,2-b]carbazole

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Bergander, L.; Rannug, A.; Rannug, U. to be published.

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Wahlström, N.; Romero, I.; Bergman, J. to be published.

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The crystallographic data of 7h have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication number CCDC 230285. Copies of the data can be obtained free of charge, e-mail: [e-mail].