Regioselective Acylation of (5-Alkylidene-1,3-cyclohexadiene)tricarbonyliron Complexes by the Reaction with Organometallic Reagents
Reaction of [(1,2,3,4-η)-5-alkylidene-1,3-cyclohexadiene]tricarbonylirons and organometallic reagents generates acyl[(1,2,3,4,5-η)-1-alkylcyclohexadienyl]dicarbonylirons. The acyl group in these complexes migrates to the cyclohexadienyl moiety under carbon monoxide atmosphere, providing [(1,2,3,4-η)-6-acyl-2-alkyl-1,3-cyclohexadiene]tricarbonylirons, which are further transformed to m-alkylphenyl ketones by the oxidation with trimethylamine N-oxide.