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    • 6. 发明申请
    • DIACYLATED DIPERCARBOXYLIC ACID AS BLEACHING AGENT
    • 作为漂白剂的二异氰酸酯二羧酸
    • WO1991017143A1
    • 1991-11-14
    • PCT/SE1991000291
    • 1991-04-24
    • EKA NOBEL ABLAGNEMO, HansFORSSTRÖM, Annbritt
    • EKA NOBEL AB
    • C07C409/32
    • C07C291/04C07C409/34C07C409/40C07C409/42C11D3/3945
    • The invention concerns diacylated dipercarboxylic acids according to general formula (I), in which R1 and R2 are hydrocarbon groups having from 1 to 15 carbon atoms, and X is electron attracting by being an optionally substituted phenyl group, an optionally substituted heterocycle in which the hetero atom is positioned so that from 2 to 4 carbon atoms are present between the hetero atom and each one of the carbonyl carbons of the diperacid, or by comprising at least one electron attracting functional group positioned so that a carbon chain having from 2 to 4 carbon atoms is present between said electron attracting group and each one of the carbonyl carbons of the diperacid, wherein the electron attracting group contains oxygen, sulfur, nitrogen, phosphorus, halogen, optionally substituted phenyl, or at least two conjugated double bonds, R1 and R2 are hydrocarbon groups having from 1 to 15 carbon atoms, except compounds in which X consists of a phenyl group having the carbonyl carbons in 1,4 position and both of R1 and R2 are acetyl or both of R1 and R2 are nonyl. The invention also concerns a method of their preparation, a composition useful for bleaching and a method of bleaching.
    • 本发明涉及根据通式(I)的二酰化二过羧酸,其中R 1和R 2是具有1至15个碳原子的烃基,X是通过任选取代的苯基吸引的电子,任选取代的杂环,其中 位置上使杂原子存在于杂原子和二酸的每个羰基碳之间2至4个碳原子,或者包含至少一个吸电子官能团,定位使得具有2至4个碳原子的碳链 碳原子存在于所述吸电子基团和二酸的每个羰基碳之间,其中吸电子基团含有氧,硫,氮,磷,卤素,任选取代的苯基或至少两个共轭双键,R1和 R2是具有1至15个碳原子的烃基,除了其中X由具有羰基碳的苯基组成的化合物i之外 n为1,4位,R 1和R 2均为乙酰基,R 1和R 2均为壬基。 本发明还涉及它们的制备方法,可用于漂白的组合物和漂白方法。