Patent ID: 7008593
Filing Date: 2006-03-07
Classification: C07C,C11D

Abstract:
1. A process of deodorizing water-containing solutions of compounds of the general formula I, where R 1 is H, CH 3 , a C 2-24 -alkyl or alkenyl radical, a substituted C 2-24 -alkyl or -alkenyl radical having at least one substituent from the group consisting of Cl, Br, OH, NH 2 , CN, an alkyl radical or an alkenylaryl radical having a C 1-24 -alkyl group, or a substituted alkyl or alkenylaryl radical having a C 1-24 -alkyl group and at least one further substituent on the aromatic ring, R 2 and R 3 independently of one another are selected from —CH 2 —CN, —CH 3 , —CH 2 —CH 3 , —CH 2 —CH 2 —CH 3 , —CH(CH 3 )—CH 3 , —CH 2 —OH, —CH 2 —CH 2 —OH, —CH(OH)—CH 3 , —CH 2 —CH 2 —CH 2 —OH, —CH 2 —CH(OH)—CH 3 , —CH(OH)—CH 2 —CH 3 , —(CH 2 —CH 2 —O) n H where n=1, 2, 3, 4, 5 or 6, R 4 and R 5 independently of one another have a meaning specified above for R 1 , R 2 or R 3 , and X is an anion of equivalent charge, by exposure to the action of an aqueous combination of a percarboxylic acid, a carboxylic acid and hydrogen peroxide, wherein the aqueous combination comprises 30% to 80% by weight of water.