Remote C6-Enantioselective C-H Functionalization of 2,3-Disubstituted Indoles through the Dual H-Bonds and π-π Interaction Strategy Enabled by CPAs

Org Lett. 2019 Nov 1;21(21):8662-8666. doi: 10.1021/acs.orglett.9b03276. Epub 2019 Oct 22.

Abstract

A versatile dual H-bonds and π-π interaction strategy that enables enantioselective remote C6-selective C-H functionalization of 2,3-disubstituted indoles was first reported. The N-H bond of indole was pivotal to achieve the C6 functionalization with excellent yield and enantioselectivity. Furthermore, this methodology leads to the efficient construction of numerous enantioenriched C6-functionalized indole products under mild reaction conditions employing different electrophiles. Preliminary cell proliferation investigations revealed that the synthesized chiral C6-substituted indole derivatives had potential anticancer activities.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Hydrogen Bonding
  • Indoles / chemistry*
  • Phosphoric Acids / chemistry*
  • Stereoisomerism

Substances

  • Indoles
  • Phosphoric Acids
  • phosphoric acid