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Synthesis of A Pentaarylcarbazole: Installation of Different Aryl Groups on Benzenoid Moiety
preprintsubmitted on 14.04.2020, 14:17 and posted on 16.04.2020, 11:32 by Junichiro Yamaguchi, Takashi Asako, Shuhei Tanaka, Eisuke Ota
We report here a novel strategy for the synthesis of pentaarylcarbazole. In this method, an N-alkynylation of sulfonamide facilitated by an iodonium salt, and spontaneous cycloaddition of the resulting ynamide were crucial for the rapid construction of the central carbazole core.