Visible-Light Organophotoredox-Mediated [3 + 2] Cycloaddition of Arylcyclopropylamine with Structurally Diverse Olefins for the Construction of Cyclopentylamines and Spiro[4. n] Skeletons

J Org Chem. 2022 Nov 18;87(22):15511-15529. doi: 10.1021/acs.joc.2c02061. Epub 2022 Nov 1.

Abstract

We developed a visible-light-mediated [3 + 2] cycloaddition of arylcyclopropylamine with structurally diverse olefins using QXPT-NPh as a highly efficient organic photoredox catalyst. We first achieved the use of various alkyl-substituted alkenes in intermolecular [3 + 2] cycloadditions with cyclopropylamine. We also developed a general and efficient strategy for the construction of structurally diverse cyclopentane-based spiro[4.n] skeletons with 1,3-difunctional groups, which broadly exist in natural products and synthetic molecules. Furthermore, we proposed a hydrogen-bond mode between the arylcyclopropylamine and the photocatalyst QXPT-NPh.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes* / chemistry
  • Cycloaddition Reaction
  • Molecular Structure
  • Skeleton*

Substances

  • Alkenes
  • cyclopentylamine