Copper-Catalyzed Alkylation of Organomanganese Chloride Reagents1

Abstract
Organomanganese chloride reagents are alkylated in excellent yields by n-alkyl bromides in THF, at 20°C, in the presence of 3% CuI when N-methylpyrrolidone is added as cosolvant. The reaction is very chemoselective since various functional group such as chlorides, sulfonates, alcohols, carboxylic acids, esters and even ketones are tolerated.

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