Regioselective Synthesis of Substituted Carbazoles, Bicarbazoles, and Clausine C

Org Lett. 2021 Sep 3;23(17):6882-6885. doi: 10.1021/acs.orglett.1c02449. Epub 2021 Aug 23.

Abstract

Substituted carbazoles are efficiently constructed from 3-triflato-2-pyrones and alkynyl anilines. Multiple substituents are tolerated on the carbazole, and complete control of regiochemistry is observed. Complicated and sterically congested substitution patterns are produced. This strategy is also used to prepare substituted bicarbazoles and related biaryls. Finally, the method was showcased in a synthesis of the carbazole natural product clausine C.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, Non-U.S. Gov't