Preparation of carbonyl halides of more than 7 carbon atoms

Details Preparation of carbonyl halides of more than 7 carbon atoms Preparation of carbonyl halides of more than 7 carbon atoms

C - Chemistry, Metallurgy

07

C

260/539.6

C07C 51/60 (2006.01) C07C 53/42 (2006.01)

Patent

CA 1314560

O.Z. 0053/39245 Abstract of the Disclosure: Carbonyl halides of the general formula I Image (I) where R is an organic radical of more than 7 carbon atoms and X is chlorine or bromine, are prepared by reacting carboxylic acids of the general formula II Image (II) where R has the abovementioned meaning, with phosphorus chlorides or bromides by treating these reaction mixtures with carboxamide/hydrochloride or hydrobromide mixtures which are not homogeneously miscible with the carbonyl halides I and then separating off the carboxamide hydro- chloride or hydrobromide phase.

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