σ-Bond Metathesis of Alkanes on a Silica-Supported Tantalum(V) Alkyl Alkylidene Complex: First Evidence for Alkane Cross-Metathesis

Christophe Copéret; Olivier Maury; Jean Thivolle-Cazat; Jean-Marie Basset

doi:10.1002/1521-3773(20010618)40:12<2331::AID-ANIE2331>3.0.CO;2-P

σ-Bond Metathesis of Alkanes on a Silica-Supported Tantalum(V) Alkyl Alkylidene Complex: First Evidence for Alkane Cross-Metathesis

Angew Chem Int Ed Engl. 2001 Jun 18;40(12):2331-2334. doi: 10.1002/1521-3773(20010618)40:12<2331::AID-ANIE2331>3.0.CO;2-P.

Authors

Christophe Copéret¹, Olivier Maury¹, Jean Thivolle-Cazat¹, Jean-Marie Basset¹

Affiliation

¹ Laboratoire de Chimie Organométallique de Surface UMR 9986 CNRS - ESCPE Lyon 43 bd du 11 Novembre 1918 69626 Villeurbanne Cedex (France) Fax: (+33) 4-72-43-18-11.

PMID: 29711818
DOI: 10.1002/1521-3773(20010618)40:12<2331::AID-ANIE2331>3.0.CO;2-P

Abstract

C-C activation of unactivated alkanes on a silica-supported neopentyl neopentylidene Ta^V complex [Eq. (1)] affords the alkane cross-metathesis products tBuCH₂ R and an alkane-metathesis catalyst. Since the activity and product distributions are similar to those obtained with a silica-supported Ta^III hydride, these results are a first step in understanding alkane σ-bond metathesis on metal hydrides.

Keywords: C−C activation; C−C coupling; metathesis; tantalum.