Organocatalytic asymmetric cascade 1,6-addition/hemiketalization/retro-Henry reaction of ortho-hydroxyphenyl-substituted p-QMs with α-nitroketones

Org Biomol Chem. 2020 Apr 8;18(14):2641-2645. doi: 10.1039/d0ob00397b.

Abstract

A novel organocatalytic asymmetric cascade 1,6-addition/hemiketalization/retro-Henry reaction of ortho-hydroxyphenyl-substituted p-QMs with α-nitroketones is described. A variety of novel chiral 2-(1-(4-hydroxyphenyl)ethyl)phenols are constructed for the first time with high yields (up to 92%) and excellent enantioselectivities (up to >99% ee) under mild reaction conditions. A gram-scale experiment of this process is also presented.

Publication types

  • Research Support, Non-U.S. Gov't