Patent ID: 6800771
Filing Date: 2004-10-05
Classification: C07C,C11D

Abstract:
A process for preparing an amido phenyl ester salt comprising reacting in a reaction vessel the following:(i) an antioxidant-stabilized amido acid composition an effective stabilizing amount of an antioxidant and an amido acid; and (ii) a phenyl alcohol salt, under conditions sufficient to form an amido phenyl ester salt, wherein the antioxidant-stabilized amido acid is of a formula I or II where R1 is selected from C1-C22 alkyl, C2-C22 alkenyl, C2-C22 alkynyl, C3-C22 cycloalkyl, and C6-C14 aryl; R2 and R5 are each independently selected from hydrogen, C1-C22 alkyl, C2-C22 alkenyl, C2-C22 alkynyl, C3-C22 cycloalkyl, C6-C14 aryl, and where in formula II, R2 and R5 can with the nitrogen carrying them form a C3-C10 heterocycle; R3 and R4 are each independently selected from hydrogen, C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkynyl, C3-C10 cycloalkyl, C6-C10 aryl and where R3 and R4 can together with the carbon carrying them form a C3-C10 cycloalkyl; and n is an integer from 0 to 20; and wherein the amido phenyl ester salt is of formula (III) or (IV): where Y is selected from SO3âˆ’M+, CO2âˆ’M+, SO4âˆ’M+, and N+(R6)3X; M is selected from hydrogen, ammonium and alkali metal atom; R6 in each instance is a C1-C4 alkyl group; and, X is a halide, hydroxide, methylsulfate, or acetate ion.