Asymmetric Synthesis of Tertiary and Secondary Cyclopropyl Boronates via Cyclopropanation of Enantioenriched Alkenyl Boronic Esters

Org Lett. 2022 May 20;24(19):3455-3460. doi: 10.1021/acs.orglett.2c01018. Epub 2022 May 11.

Abstract

The cyclopropanation of alkenyl boronates and subsequent derivatization of the boronate handle are a convenient strategy to quickly build molecular complexity and access diverse compounds with a high sp3 fraction. Herein, we describe the asymmetric cyclopropanation of enantioenriched hydrobenzoin-derived alkenyl boronic esters toward the synthesis of tertiary and secondary cyclopropyl boronates.

MeSH terms

  • Boron*
  • Boronic Acids
  • Esters*
  • Stereoisomerism

Substances

  • Boronic Acids
  • Esters
  • Boron