Catalyst-Free α-Alkylation-α-Hydroxylation of Oxindole with Alcohols

J Org Chem. 2022 May 6;87(9):5464-5471. doi: 10.1021/acs.joc.1c02185. Epub 2022 Apr 7.

Abstract

3-Alkyl-3-hydroxyoxindoles, a subclass of oxindole products, have antioxidant, neuroprotective, anticancer, and anti-HIV activities. In this study, a green and economical protocol for the synthesis of 3-alkyl-3-hydroxyoxindoles is developed for the first time via α-alkylation-α-hydroxylation of oxindole with benzyl alcohols without using any transition-metal catalysts in yields of 29-93%.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alcohols*
  • Alkylation
  • Hydroxylation
  • Molecular Structure
  • Oxindoles

Substances

  • Alcohols
  • Oxindoles