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Isomerization of olefins by titanocene and zirconocene alkyne complexes

✍ Scribed by A. Ohff; V.V. Burlakov; U. Rosenthal

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
690 KB
Volume
105
Category
Article
ISSN
1381-1169

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✦ Synopsis

An efficient isomerization of aliphatic and cyclic olelins is achieved by using well-defined metallocene alkyne complexes as catalysts. Titanocene complexes isomerize I-alkenes to internal alkenes under mild conditions. The titanium complex was recovered quantitatively. Cyclic olcfins, e.g. cyclohexadienes, also undergo isomerization, but a competing intermolecular hydrogen transfer reaction takes place as well. This side-reaction is much more favoured for zirconocene than for titanocene complexes.

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