Transition-metal mediated asymmetric synthesis. Part 5. Alternative methods for the formation of tricarbonyl(η5-cyclohexadienyl)iron(1+) salts
- 1 January 1987
- journal article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 4,p. 885-888
- https://doi.org/10.1039/dt9870000885
Abstract
The influence of substituents on the preparation of tricarbonyl(η5-cyclohexadienyl) iron(1+) salts by oxidation using thallium(III) tris(trifluoroacetate) and by hydride abstraction using 2,3-dichloro-5,6-dicyano-1,4- benzoquinone–tetrafluoroboric acid has been examined. Hydride abstraction by thallium oxidation is superior to conventional methods and offers complementary regiocontrol in some cases. An example of hydride abstraction from a blocked tricarbonyl(η4-cyclohexadiene) iron complex is described.Keywords
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