Bench-Stable, Substrate-Activated Cobalt Carboxylate Pre-Catalysts for Alkene Hydrosilylation with Tertiary Silanes

Christopher H. Schuster, Tianning Diao, Iraklis Pappas, Paul J. Chirik

Research output: Contribution to journalArticle

Abstract

High-spin pyridine diimine cobalt(II) bis(carboxylate) complexes have been synthesized and exhibit high activity for the hydrosilylation of a range of commercially relevant alkenes and tertiary silanes. Previously observed dehydrogenative silylation is suppressed with the use of sterically unencumbered ligands, affording exclusive hydrosilylation with up to 4000 TON. The cobalt precatalysts were readily prepared and handled on the benchtop and underwent substrate activation, obviating the need for external reductants. The cobalt catalysts are tolerant of epoxide, amino, carbonyl, and alkyl halide functional groups, broadening the scope of alkene hydrosilylation with earth-abundant metal catalysts.

Original languageEnglish (US)
Pages (from-to)2632-2636
Number of pages5
JournalACS Catalysis
Volume6
Issue number4
DOIs
StatePublished - Apr 1 2016

Keywords

  • alkenes
  • cobalt
  • hydrosilylation
  • redox active
  • silicone
  • tertiary silanes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Fingerprint Dive into the research topics of 'Bench-Stable, Substrate-Activated Cobalt Carboxylate Pre-Catalysts for Alkene Hydrosilylation with Tertiary Silanes'. Together they form a unique fingerprint.

  • Cite this