Transition-metal-free cascade benzannulations for synthesizing 2-hydroxybenzophenones

Org Biomol Chem. 2020 Nov 28;18(44):9039-9043. doi: 10.1039/d0ob01894e. Epub 2020 Nov 3.

Abstract

A set of cascade benzannulations of readily accessible chromone-3-carboxaldehydes and γ-nitroaldehydes for synthesizing biologically relevant 2-hydroxybenzophenones has been developed. The cascade was found to provide a transition-metal-free strategy for synthesizing 2-hydroxybenzophenones in acceptable yields (up to 57%).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzophenones*

Substances

  • Benzophenones
  • ortho-hydroxybenzophenone