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

1988-06-10

1990-02-13

Lone, Werren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562861, C11C 300

Patent

active

049004794

ABSTRACT:
Carbonyl halides of the general formula I ##STR1## 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 ##STR2## 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 hydrochloride or hydrobromide phase.

REFERENCES:
patent: 1936739 (1933-11-01), Townsend
patent: 2262431 (1941-11-01), Ralston et al.

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