| 摘要 |
A process for preparing carbonyl chlorides of the formula I <IMAGE> (I) where R is C1-C30-alkyl, C2-C30-alkenyl or C2-C30-alkynyl, from essentially equimolar amounts of a carboxylic acid of the formula II <IMAGE> (II) where R has the abovementioned meanings, and phosgene COCl2 (III), in the presence of a catalytic adduct of phosgene and N,N-disubstituted formamide or the hydrochlorides thereof, of the formula IV <IMAGE> (IV) where R1 and R2 are each, independently of one another, C1-C3-alkyl or together are a C4-C5-alkylene chain which may be interrupted by oxygen or by nitrogen which carries C1-C3-alkyl or CHO, and n is 0, 1 or 2, wherein the reaction is carried out with a stationary phase of the catalytic adduct, is described.
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