Organocatalytic enantioselective construction of axially chiral (1 H)-isochromen-1-imines

Org Biomol Chem. 2022 Apr 20;20(16):3277-3282. doi: 10.1039/d2ob00379a.

Abstract

Heterocycloalkenyl atropisomers, derived from biaryl atropisomers and axially chiral styrenes, have emerged as a new class of nonbiaryl C-C atropisomers due to the benefit in improving the pharmacological activity and structural diversity. This paper proposes an intramolecular annulation strategy for constructing the heterocycloalkenyl atropisomers (1H)-isochromen-1-imines by organocatalysis. Various heterocycloalkenyl atropisomers (1H)-isochromen-1-imines were prepared in good to excellent yields with excellent enantioselectivity (up to 98% ee), and could be easily converted to atropisomeric lactones isocoumarins.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Imines*
  • Stereoisomerism

Substances

  • Imines