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

C−C activation of unactivated alkanes on a silica‐supported neopentyl neopentylidene TaV complex [Eq. (1)] affords the alkane cross‐metathesis products tBuCH2R and an alkane‐metathesis catalyst. Since the activity and product distributions are similar to those obtained with a silica‐supported TaIII...

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Published inAngewandte Chemie International Edition Vol. 40; no. 12; pp. 2331 - 2334
Main Authors Copéret, Christophe, Maury, Olivier, Thivolle-Cazat, Jean, Basset, Jean-Marie
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag GmbH 18.06.2001
WILEY‐VCH Verlag GmbH
Subjects
C−C activation
C−C coupling
metathesis
tantalum
C−C coupling
metathesis
C−C activation
tantalum
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Summary:C−C activation of unactivated alkanes on a silica‐supported neopentyl neopentylidene TaV complex [Eq. (1)] affords the alkane cross‐metathesis products tBuCH2R and an alkane‐metathesis catalyst. Since the activity and product distributions are similar to those obtained with a silica‐supported TaIII hydride, these results are a first step in understanding alkane σ‐bond metathesis on metal hydrides.
Bibliography:istex:646B873D2BCBFB60276326AF042E0D5EF716445B
ark:/67375/WNG-6Z527C1V-5
ArticleID:ANIE2331
We are grateful to Dr. L. Lefort (LCOMS) and Dr. B. Maunders (BP Chemicals) for fruitful discussions. We also wish to thank the C.N.R.S., C.P.E. Lyon, and BP Chemicals for financial support.
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ISSN:1433-7851
1521-3773
DOI:10.1002/1521-3773(20010618)40:12<2331::AID-ANIE2331>3.0.CO;2-P