Add time:08/14/2019         Source:sciencedirect.com

The reaction of DIIRON NONACARBONYL (cas 15321-51-4) with cis-bicyclo[6.2.0]deca-2,4,6-triene in ether at room temperature produces several products which are separable by chromatography on alumina. Compound (A), C10H12Fe2(CO)6, obtained in 23% yield, is shown by PMR and IR spectra to have the FeFe bonded Fe2(CO)6 group attached to the triene portion of the starting bicyclotriene. Compound (B), C10H12Fe(CO)3, obtained both from the initial reaction and by heating (A) in refluxing toluene; is the Fe(CO)3 adduct of tricyclo[4.4.0.02.5]deca-7,9-diene, a molecule which has not been isolated in the free state. Compound (C), also obtained on pyrolysis of (A) in minute yield, has not yet been characterized. Compound (D), C10H12Fe2(CO)6, from the original reaction, in small yield, appears to have separate Fe(CO)3 groups bonded to the olefinic portions of a C10H12 monocycle, but spectral data alone do not allow a complete specification of the structure.

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