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Coupling of two phosphaalkynes via a carbonyl group in the addition across a rhrh double bond

Coupling of two phosphaalkynes via a carbonyl group in the addition across a rhrh double bond Phosphaalkynes, RCP (R = But, Adamantyl), add across the RhRh double bond of [Rh2Cp 2*(CO)2] to give either [Rh2Cp 2*(μ‐CO)(COPCR)] or [Rh2Cp 2*(CO){PCRC(O)CRP}] depending on the stoichiometry of the reaction (Cp* = η5‐C5Me5). The structures of these complexes have been elucidated by NMR spectroscopy and by a single crystal X‐ray study on [Rh2Cp 2*(CO){PCAdC(O)CPAd}]. Small amounts of the 1,3‐diphosphacyclobutadiene complexes [RhCp*(P2C2R2)] and the trinuclear compound [Rh3Cp 3*(CO)2] are also formed in these reactions. The reactions of RCP with [CoRhCp2*(CO)2] are also described. A preliminary account of part of this work has appeared in J. Chem. Soc., Chem. Commun., 1987, 658. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Heteroatom Chemistry Wiley

Coupling of two phosphaalkynes via a carbonyl group in the addition across a rhrh double bond

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References (30)

Publisher
Wiley
Copyright
Copyright © 1991 Wiley Subscription Services
ISSN
1042-7163
eISSN
1098-1071
DOI
10.1002/hc.520020206
Publisher site
See Article on Publisher Site

Abstract

Phosphaalkynes, RCP (R = But, Adamantyl), add across the RhRh double bond of [Rh2Cp 2*(CO)2] to give either [Rh2Cp 2*(μ‐CO)(COPCR)] or [Rh2Cp 2*(CO){PCRC(O)CRP}] depending on the stoichiometry of the reaction (Cp* = η5‐C5Me5). The structures of these complexes have been elucidated by NMR spectroscopy and by a single crystal X‐ray study on [Rh2Cp 2*(CO){PCAdC(O)CPAd}]. Small amounts of the 1,3‐diphosphacyclobutadiene complexes [RhCp*(P2C2R2)] and the trinuclear compound [Rh3Cp 3*(CO)2] are also formed in these reactions. The reactions of RCP with [CoRhCp2*(CO)2] are also described. A preliminary account of part of this work has appeared in J. Chem. Soc., Chem. Commun., 1987, 658.

Journal

Heteroatom ChemistryWiley

Published: Jan 1, 1991

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