Patent ID: 6586622
Filing Date: 2003-07-01
Classification: C07C,C08F,C11D,D06P,D21C

Abstract:
A sulfinic acid compound of the formula (I) and a salt thereof, wherein M is a hydrogen atom, an ammonium ion, a monovalent metal ion or an equivalent of a divalent metal ion of the groups Ia, IIa, IIb, IVa or VIIIb of the Periodic Table of the Elements; R1 is NR4R5, wherein R4 and R5 independently of one another are H or C1-C6-alkyl; R2 is H or an alkyl, alkenyl, cycloalkyl or aryl group, wherein the alkyl, alkenyl, cycloalkyl, and aryl group are unsubstituted or substituted with 1, 2 or 3 substituents which are chosen independently of one another from C1-C6-alkyl, OH, Oâ€”C1-C6-alkyl, halogen and CF3; and R3 is COOM, SO3M, COR4, CONR4R5 or COOR4.