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ChemInform Abstract: Regioselective Acylation of (5-Alkylidene-1,3-cyclohexadiene)tricarbonyliron Complexes by the Reaction with Organometallic Reagents.

✍ Scribed by M. IWAKOSHI; S. H. BAN; Y. HAYASHI; K. NARASAKA

Publisher: John Wiley and Sons
Year: 2010
Weight: 31 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199840083

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✦ Synopsis

Regioselective

Acylation of (5-Alkylidene-1,3cyclohexadiene)tricarbonyliron Complexes by the Reaction with Organometallic Reagents.

-Non-stabilized organolithiums and higher order cuprates attack not onto the triene moiety of the title (alkylidene-1,3-cyclohexadiene)tricarbonyliron complexes (I) but onto a carbonyl ligand selectively. The formed acyl group migrates regioselectively to the C-5 position of the cyclohexadienyl moiety in carbon monoxide atmosphere, providing m-alkylphenyl ketones [cf. (IV), 10 examples] after oxidation. -(IWAKOSHI,

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