Hydrogen Bond Assisted Central-to-Spiro Chirality Transfer and Central-to-Axial Chirality Conversion: Asymmetric Synthesis of Spirocycles

Org Lett. 2021 Dec 3;23(23):9315-9320. doi: 10.1021/acs.orglett.1c03710. Epub 2021 Nov 14.

Abstract

The asymmetric construction of chiral spiroenones bearing both axial and spiro-central chirality has been established for the first time by a central-to-spiro chirality transfer and a central-to-axial chirality conversion from chiral 2,3-diarylbenzoindolines. Mechanistic studies indicate the hydrogen bonds play important roles in this process, providing an efficient strategy for enantioselective construction of spirocyclic backbones via simultaneously controlling spiro-central and axial chirality in one operation.

Publication types

  • Research Support, Non-U.S. Gov't