Construction of C2-Quaternary-indol-3-ones via RhIII-Catalyzed [3+2] Spirocyclization from Indole Ketones and Nitroolefins

J Org Chem. 2022 May 6;87(9):6179-6188. doi: 10.1021/acs.joc.2c00408. Epub 2022 Apr 19.

Abstract

Novel complex C2-quaternary-indol-3-one units bearing versatile nitro groups have been successfully developed from pseudo-indolones and α,β-unsaturated nitroolefins through rhodium-catalyzed C-H activation/[3 + 2] spirocyclization. Notably, four diastereomers could be selectively obtained in the reaction by condition control.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Indoles
  • Ketones*
  • Rhodium*

Substances

  • Indoles
  • Ketones
  • Rhodium