The mechanism of isomerisation of the C=C bond in ethenethiolato ligands co-ordinated to molybdenum and tungsten. The molecular structures of (E)-exo-[W{η3-SC(CF3)=C(CF3)H}(CF 3C≡CCF3)(η5-C5H ...

Naz M. Agh-Atabay, Jack L. Davidson, Graeme Douglas, Kenneth W. Muir

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2 Citations (Scopus)

Abstract

full title:The mechanism of isomerisation of the C=C bond in ethenethiolato ligands co-ordinated to molybdenum and tungsten. The molecular structures of (E)-exo-[W{?3-SC(CF3)=C(CF3)H}(CF 3C=CCF3)(?5-C5H 5)] and (Z)-endo-[W{?3-SC(CF3)=C(CF 3)H}(CF3C=CCF3)(?5-C 5H5)] Thermolysis of the ?2-vinyl complex [W{?3- C(CF3)C(CF3)SBut}(CF3C= CCF3)(?5-C5H5)] gives the ?3-ethenethiolato derivative (E)-exo-[W{?3- SC(CF3)=C(CF3)H}(CF3C=CCF 3)(?5-C5H5)], which undergoes concomitant exo ? endo and E ? Z isomerisation to give (Z)-endo-[W{?3-SC(CF3)=C(CF3)H}(CF 3C=CCF3)(?5-C5H 5)], thus providing evidence for a ring-flip mechanism in metal-promoted alkene isomerisations.

Original languageEnglish
Pages (from-to)1526-1528
Number of pages3
JournalJournal of the Chemical Society, Chemical Communications
Issue number20
DOIs
Publication statusPublished - 1987

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