Chemistry of methinyltricobalt enneacarbonyls. Part VIII. Friedel–Crafts reactions with halogeno-clusters
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 18,p. 2046-2050
- https://doi.org/10.1039/dt9720002046
Abstract
Friedel–Crafts reactions with halogenomethinyltricobalt enneacarbonyls afford a useful route to a wide range of aryl clusters, RCCo3(CO)9. The usefulness of g.l.c. in their purification is emphasised. Substitution is predominately in the para-position but exceptions occur when the aryl substituent is small (e.g. F). In one case (R = ClC6H4) both ortho- and para-isomers were isolated. Methods for determining the structure are described and the inductive-mesomeric effects of a Co3C cluster evaluated.Keywords
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