Journal of Organometallic Chemistry p. 79 - 90 (1985)
Update date:2022-08-12
Topics:
Spencer, Alwyn
RuCl3*3H2O in presence of PPh3 and a catalytic amount of a base and under an atmosphere of carbon monoxide catalyses the reaction of azobenzene derivatives and primary alcohols or their esters to give 2-substituted 1-phenylimidazoles.Substituents in the azobenzene derivatives have a marked effect on the product yields.Where isomer formation can occur, all possible isomers of the product are usually formed.In non-symmetrically substituted azobenzene derivatives, ortho-metallation occurs preferentially in the aromatic ring having the highest electron density.
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