Abstract
In the presence of a catalytic amount of manganese chloride (3% MnCl 4Li 2), organomagnesium reagents react with car☐ylic chlorides, in THF between 0 and 10°C, to give the corresponding ketones in high yields. The scope of the reaction is very large; alkyl, alkenyl and aryl magnesium reagents have been used successfully. The selectivity of the reaction allows to prepare various fonctionalized ketones from car☐ylic acid chlorides bearing a functional group (Cl, Br, ester nitrile and even a ketone).
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