C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/489, 260/481
C07C 303/06 (2006.01) C11C 3/00 (2006.01)
Patent
CA 1281738
Abstract of the disclosure A process for the preparation of acyloxybenzenesulfonic acids and salts thereof, of the formula Image in which R is C1-C17-alkyl or C2-C17-alkenyl and M is an alkali or alkaline earth metal, ammonium or hydrogen, including the stages of (a) sulfonation of phenol, if appropriate (b) thermal treatment of the sul- fonated phenol, (c) esterification of the sulfonated phenol and if appropriate (d) neutralization of the ester, wherein the sulfonation of the phenol is carried out with sulfuric acid or oleum and the water of reaction is re- moved during or after stage (b) by distillation and/or by reaction with a dehydrating agent.
521292
Bader Georg
Grabley Fritz-Feo
Reinhardt Gerd
Rupp Walter
Bader Georg
Fetherstonhaugh & Co.
Grabley Fritz-Feo
Hoechst Aktiengesellschaft
Reinhardt Gerd
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