Patent ID: 6660878
Filing Date: 2003-12-09
Classification: C07F

Abstract:
A phosphono compound of the formula I in which the radicals R3, which can be identical or different, are C1-C18-alkyl or aryl which is unsubstituted or substituted by C1-C4-alkyl, NO2 or OC1-C4-alkyl, and X is CN, COOZ, CONR1R2 or CH2OY, Y is H or a radical which is readily exchangeable for H; Z is H, an alkali metal, alkaline earth metal, C1-C18-alkyl or aryl, which is unsubstituted or substituted by C1-C4-alkyl, NO2 or OC1-C4-alkyl; R1 and R2, which can be identical or different, are H or C1-C4-alkyl, or a salt thereof.