| 摘要 |
2-Hydroxy-3-aminopropionic acid derivatives of the general formula I <IMAGE> I where X is hydrogen, an alkali metal or ammonium which may be substituted by C1-C4-alkyl or C1-C4-hydroxyalkyl, and Y1 and Y2 have the following meanings: A) omega -substituted alkyl of the general formula -(CH2)m-R1 where R1 is hydrogen, hydroxyl or -COOX, -NH-CH(COOX)-CH2-COOX or -NY1Y2 and m is from 1 to 20, although m is not 1 when Y1 and Y2 are identical and R1 is -COOX, B) a polyether group of the general formula -(CH2CH2O)m-R2 where R2 is hydrogen or C1-C4-alkyl, C) a beta -hydroxyl-substituted group of the general formula <IMAGE> where R3 is -COOX, -CH2OH or -CH2-NY1Y2 and n is from 1 to 5, D) an alpha -carboxyl-substituted group of the general formula <IMAGE> where R4 is hydrogen, methyl or hydroxymethyl and R5 is hydroxymethyl or -CH(OH)-COOX or -(CH2)p-COOX, where p is 1 or 2, E) pyranosyl or furanosyl of the general formula <IMAGE> where q is 3 or 2, or F) a polymeric residue of a polyvinylamine or polyethyleneimine, are useful as complexing agents, bleach stabilizers and builders in detergent compositions.
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