| 摘要 |
Heterocyclic compounds of formula (I), where X stands for O, S or the N-R<3> grouping, in which R<3> stands for hydrogen, C1-C25 alkyl, C1-C25 acyl or an aryl group with up to 12 carbon atoms, Y stands for CH or N, R<1> stands for X = S or N-R<3>, hydrogen, a C1-C25 alkyl or C2-C25 alkenyl group or a phenyl residue which can be additionally substituted by one or two C1-C4 alkyl, C1-C4 alkoxy, hydroxyl, carboxyl, sulpho, amino, C1-C4 acylamino, nitro or cyano groups or chlorine or bromine atoms, whereby for two substituents these may be the same or different, R<1> stands for X = O, phenyl, o-, m- or p-tolyl, p-chlorphenyl, m-nitrophenyl, m-methoxyphenyl or m-methylsulphonylphenyl, R<2> stands for X = S or NR<3>, hydrogen, a C1-C4 alkyl, C1-C4 alkoxy, hydroxyl, carboxyl, sulpho, amino or C1-C4 acylamino group or a chlorine or bromine atom and R<2> stands for X = O or hydrogen, can be used as bleach activators or optical lighteners in washing and cleaning agents. |
