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Patent Searching and Data


Title:
PROCESS FOR THE PREPARATION OF ACYLOXYBENZENESULFONATES
Document Type and Number:
WIPO Patent Application WO2004054960
Kind Code:
A8
Abstract:
The invention relates to a process for the preparation of acyloxybenzenesulfonates starting from carbonyl halides and salts of phenolsulfonic acid which have a low water content. Surprisingly, it was discovered that acyloxybenzenesulfonates can be prepared in high yields and good grades, irrespective of the grade or reactivity of the phenolsulfonic acid derivative, if the reaction of the phenolsulfonic acid with an alkanecarboxylic acid derivative is carried out in an aliphatic or aromatic solvent in the presence of 0.5 to 25% by weight of a polyglycol ether.

Inventors:
NAUMANN PETER
MUELLER WOLF-DIETER
Application Number:
PCT/EP2003/013744
Publication Date:
September 02, 2004
Filing Date:
December 05, 2003
Export Citation:
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Assignee:
CLARIANT INT LTD (CH)
International Classes:
C07C303/22; C07C303/32; C07C309/42; (IPC1-7): C07C303/22; C07C303/32; C07C309/42
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