Enantioselective synthesis of acyclic monohydrosilanes by steric hindrance assisted C-H silylation

Chem Commun (Camb). 2022 Jun 30;58(53):7388-7391. doi: 10.1039/d2cc02307e.

Abstract

Herein, a rhodium-catalyzed desymmetrization of dihydrosilanes with heterocyclic compounds via intermolecular dehydrogenative C-H silylation is developed. The strategy tolerates a variety of thianaphthene and thiophene derivatives, giving rise to a wide range of silicon-stereogenic acyclic monohydrosilanes. Several rare skeletons featuring bis-silicon-stereogenic centers were also designed to enhance the library's diversity further. Preliminary mechanistic studies reveal that the surrounding spatial environment of the Si-center plays a crucial role in enabling intermolecular C-H silylation preferentially.

MeSH terms

  • Catalysis
  • Heterocyclic Compounds*
  • Rhodium*
  • Silicon
  • Stereoisomerism

Substances

  • Heterocyclic Compounds
  • Rhodium
  • Silicon