4.8 Article

Palladium-Catalyzed Cascade Heck Cyclization To Access Bisindoles

Journal

ORGANIC LETTERS
Volume 20, Issue 12, Pages 3477-3481

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.8b01235

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Funding

  1. National Natural Science Foundation of China [NSFC21502232, NSFC21272276]

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A novel strategy for intercepting the sigma-alkylpalladium species generated via a Heck reaction, enabling a palladium-catalyzed cyclization of o-ethynylanilines, has been described. This direct and operationally simple protocol provided a fundamental platform to synthesize bisindoles with high efficiency, involving one C-N bond and two C-C bond formations.

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