Synthetic studies with iron carbonyl complexes. Versatile synthesis of olefinic side-chains to a tricarbonyl(cyclohexadiene)iron(0) ring |
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Authors: | Brian F.G. Johnson Jack Lewis David G. Parker G.Richard Stephenson |
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Affiliation: | University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW Great Britain |
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Abstract: | Tricarbonyl(cyclohexadiene)iron(0) complexes bearing olefinic side-chains at the 2- or the 5-position have been prepared by a versatile route. Terminal olefins are isomerised to internal isomers. The presence of a methoxy substituent at the 2-position prevents isomerisation of the coordinated diene into conjugation with the olefin, so locking the side-chain at the 5-exo-position. |
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