Issue 1, 2006
From the journal:

Dalton Transactions

Olefination and group transfer reactions of an electron deficient tantalum methylidene complex†

Sarah M. Mullins,a   Robert G. Bergman*a  and  John Arnold*a  

* Corresponding authors

a Department of Chemistry, University of California, Berkeley, CA, USA

Abstract

The reactivity of an electronically unsaturated tantalum methylidene complex [TolC(NSiMe3)2]2Ta(CH2)CH3 (1) supported by [TolC(NSiMe3)2] amidinate ligands is described. Electrophilic addition and olefination reactions of the Ta[double bond, length as m-dash]CH2 functionality are reported. Alkylidene 1 participates in group-transfer reactions not observed in sterically similar, but electronically saturated, analogues. Reactions with substrates containing unsaturated C–X (X = C, N, O) bonds yield [Ta][double bond, length as m-dash]X compounds and vinylated organic products; carbon–sulfur cleavage reactions to produce tantalum thioformaldehyde and tantalum sulfido complexes.

Graphical abstract: Olefination and group transfer reactions of an electron deficient tantalum methylidene complex

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Article information

DOI
https://doi.org/10.1039/B512741F
Article type
Paper
Submitted
09 Sep 2005
Accepted
19 Oct 2005
First published
14 Nov 2005

Dalton Trans., 2006, 203-212

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Olefination and group transfer reactions of an electron deficient tantalum methylidene complex

S. M. Mullins, R. G. Bergman and J. Arnold, Dalton Trans., 2006, 203 DOI: 10.1039/B512741F

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