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Tri-1-methallyl- and 1-methallyl-butadiene group IV transition metal complexes by J. Blenkers; H.J. de Liefde Meijer; J.H. Teuben is a Chemistry article available to read on EtoBox.

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Reaction of Cp'MCI, (Cp' = q5-CS(CH3)5; M = Ti, Zr, Hf) with Z-butenylmagnesium bromide at low temperatures gives Cp'M(l-methallyl),, which is readily converted into Cp'M(q3-1-methallyl)(q4-butadiene) on heating. Only Cp'Hf-(l-methallyl)3 could be isolated; it is fluxional and its NMR and IR spectra indicate that it consists of a complex mixture of isomers containing interconverting $-and ~3-l-methallyl groups\_ The compounds Cp'M(q3-C4H7)(qd-C4Hg) are much more thermally stable; they show fluxional behaviour, but this is limited to the q3-1-methallyl group. These complexes are very reactive towards a large variety of organic substrates.

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Author

J. Blenkers; H.J. de Liefde Meijer; J.H. Teuben

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

1981

Language

EN

Field

Chemistry (Physical Sciences)