Issue 0, 1971

Preparation and properties of a but-2-enyl butadiene complex of cobalt and of an analogous complex from isoprene

Abstract

Reaction of butadiene with cobalt(II) chloride in the presence of metallic zinc, ethanol, and triphenylphosphine gives the complex anti-π-but-2-enylbutadiene(triphenylphosphine)cobalt, (C4H7)(C4H6)CoPPh3. This is readily isomerized to the syn-isomer by action of PPh3, dimethyl sulphoxide, or pyridine. From isoprene an analogous complex (C5H9)(C5H8)CoPPh3 is obtained. The co-ordinated diolefin is displaced from these complexes by carbon monoxide to give the corresponding dicarbonyl derivatives. N.m.r. data for all of the complexes isolated are reported. Reaction of the complexes (C4H7)(C4H6)CoPPh3 and (C5H9)(C5H8)CoPPh3 with allene, 3-methyl-buta-1,2-diene, and acetylene gives highly crystalline linear polymers.

Article information

Article type
Paper

J. Chem. Soc. A, 1971, 3246-3250

Preparation and properties of a but-2-enyl butadiene complex of cobalt and of an analogous complex from isoprene

G. Vitulli, L. Porri and A. L. Segre, J. Chem. Soc. A, 1971, 3246 DOI: 10.1039/J19710003246

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