Issue 1, 2001
From the journal:

Journal of the Chemical Society, Dalton Transactions

Reactivity of multi-site bound allenylidene towards alkynes and silica gel †

Jonathan P. H. Charmant,a   Philip J. King,*a   Roberto Quesada-Pato,a   Enrico Sappab  and  Carsten Schaefera  

* Corresponding authors

a School of Chemistry, University of Bristol, Bristol, UK

b Dipartimento di Chimica, Università di Torino, Via P. Giuria, Torino, Italy

Abstract

Heating the allenylidene species [Ru3(CO)9(μ-CO)(μ3-C[double bond, length half m-dash]C[double bond, length half m-dash]CPh2)] in the presence of alkynes RC2R (R = Me or Ph) led to formation of the novel complexes [Ru3(CO)9{μ3-C(R)C(R)C2CPh2}] (R = Me or Ph) and [Ru4(CO)12{μ4-C(Ph)C(Ph)CCCPh2}], shown by X-ray diffraction to contain C5 ligands formed through carbon–carbon bond formation with the α-carbon of the allenylidene unit. Adsorption of [Ru3(CO)9(μ-CO)(μ3-C[double bond, length half m-dash]C[double bond, length half m-dash]CPh2)] onto silica gel at room temperature leads to formation of the acetylide species [Ru3(CO)9(μ-H){μ3-C[triple bond, length as m-dash]CC(Ph)2OH}], whereas reaction of [Ru3(CO)9(μ-CO){μ3-C[double bond, length half m-dash]C[double bond, length half m-dash]C(Ph)Me}] with silica gel affords [Ru3(CO)9(μ-H){μ3-C[triple bond, length as m-dash]CC(Ph)[double bond, length half m-dash]CH2}], containing an ene-yne ligand. Some insights into the mechanisms by which the transformations take place are given.

p
Graphical abstract: Reactivity of multi-site bound allenylidene towards alkynes and silica gel [ ]

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/B006780F
Article type
Paper
Submitted
18 Aug 2000
Accepted
19 Oct 2000
First published
13 Dec 2000

J. Chem. Soc., Dalton Trans., 2001, 46-51

Permissions

Request permissions

Reactivity of multi-site bound allenylidene towards alkynes and silica gel

J. P. H. Charmant, P. J. King, R. Quesada-Pato, E. Sappa and C. Schaefer, J. Chem. Soc., Dalton Trans., 2001, 46 DOI: 10.1039/B006780F

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