Issue 23, 2000

Synthesis, structure and reactivity of highly functionalized η1-stibaallyliron complexes [(OC)25-C5Me5)Fe–Sb(Cl)C(OSiMe3)[double bond, length half m-dash]CPhR] (R = Ph, Me or c-C6H11)

Abstract

Insertion of one equivalent of methyl(phenyl)ketene or cyclohexyl(phenyl)ketene into the Sb–Si bond of [FeCp*(CO)2{Sb(SiMe3)2}] afforded η1-stibaallyliron complexes [(OC)25-C5Me5)Fe–Sb(SiMe3)C(OSiMe3)[double bond, length half m-dash] CR1Ph] (R1 = c-C6H11 or Me). The remaining Sb–Si bond was readily cleaved by C2Cl6 to give complexes [(OC)2Cp*Fe–Sb(Cl)C(OSiMe3)[double bond, length half m-dash]CR1Ph]. Treatment of the latter where R1 = Ph with LiSb(SiMe3)2·2.8thf, LiC[triple bond, length as m-dash]CPh, or LiC(N2)SiMe3 resulted in the formation of compounds [(OC)2Cp*Fe–Sb(R)C(OSiMe3)[double bond, length half m-dash]CPh2 [R = Sb(SiMe3)2, C[triple bond, length as m-dash]CPh or C(N2)SiMe3]. The new compounds were characterized by elemental analyses and spectra (IR, 1H, 13C, 29Si NMR). The molecular structure of [(OC)2Cp*Fe–Sb(Cl)C(OSiMe3)[double bond, length half m-dash]CPh2] was elucidated by a single crystal X-ray diffraction analysis.

Supplementary files

Article information

Article type
Paper
Submitted
11 Sep 2000
Accepted
13 Oct 2000
First published
16 Nov 2000

J. Chem. Soc., Dalton Trans., 2000, 4379-4384

Synthesis, structure and reactivity of highly functionalized η1-stibaallyliron complexes [(OC)25-C5Me5)Fe–Sb(Cl)C(OSiMe3)[double bond, length half m-dash]CPhR] (R = Ph, Me or c-C6H11)

L. Weber, L. Pumpenmeier, H. Stammler and B. Neumann, J. Chem. Soc., Dalton Trans., 2000, 4379 DOI: 10.1039/B007366K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements