摘要:
The invention relates to novel sulfone compounds of formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted phenyl or naphthyl radical,R.sub.2 is hydrogen or the radical of the formula ##STR2## R.sub.3 and R.sub.4 are --CN or --COOR.sub.5, in which R.sub.5 is C.sub.1 -C.sub.4 alkyl, with the proviso that, if R.sub.2 is the radical of the formula ##STR3## R.sub.3 and R.sub.4 in formula I may be identical or different. The compounds of the invention are valuable intermediates for the preparation of fluorescent whitening agents of the stilbene series.
摘要:
The invention relates to novel sulfone compounds of formula I ##STR1## wherein R.sub.1 is an unsubstituted or substituted phenyl or naphthyl radical,R.sub.2 is hydrogen or the radical of the formula ##STR2## R.sub.3 and R.sub.4 are --CN or --COOR.sub.5, in which R.sub.5 is C.sub.1 -C.sub.4 alkyl, with the proviso that, if R.sub.2 is the radical of the formula ##STR3## R.sub.3 and R.sub.4 in formula I may be identical or different. The compounds of the invention are valuable intermediates for the preparation of fluorescent whitening agents of the stilbene series.
摘要:
Mixtures of fuorescent whitening agents comprising 5 to 45 parts by weight of 4,4'-bis(cyanovinyl)stilbene and 95 to 55 parts by weight of a compound of formula ##STR1## and the use of said mixtures and compositions containing them for whitening polyester fibres and textile material containing polyester fibres.
摘要:
The invention relates to 4-heterocyclyl-4'-vinylstilbenes of the formula ##STR1## wherein Q is a monocyclic 5- or 6-membered aromatic heterocyclic ring which is unsubstituted or substituted by non-chromophoric groups and which contains no fused benzene rings or 1 or 2 fused benzene rings, or is a bicyclic 9-membered aromatic heterocyclic ring, phenyl which is unsubstituted or substituted by non-chromophoric groups, or is cyano, carboxyl, alkoxycarbonyl or alkylsulfonyl or arylsulfonyl, R.sub.o is hydrogen, alkyl which is unsubstituted or substituted by non-chromophoric groups, R.sub.1 is hydrogen, alkyl, alkoxycarbonyl, carbamoyl or sulfonamide, each of which is unsubstituted or substituted by non-chromophoric groups, or is alkenyl, carboxyl, alkylsulfonyl, arylsulfonyl or aralkylsulfonyl, cyano, sulfo or phosphonic acid dialkyl ester, and R.sub.2 is hydrogen, alkyl or alkenyl, each of which is unsubstituted or substituted by non-chromophoric groups, with the proviso that at most one of R.sub.1 and R.sub.2 is hydrogen. These compounds are used for whitening organic material of high molecular weight, especially polyester. They can be employed in admixture with other fluorescent whitening agents.
摘要翻译:本发明涉及式(1)的4-杂环基-4'-乙烯基茋,其中Q是未被取代或被非发色基团取代的单环5或6元芳族杂环,并且不含稠合 苯环或1或2个稠合苯环,或是双环9元芳族杂环,未取代或被非发色基团取代的苯基,或氰基,羧基,烷氧基羰基或烷基磺酰基或芳基磺酰基,Ro是氢,烷基 R 1是氢,烷基,烷氧基羰基,氨基甲酰基或磺酰胺,其各自是未取代的或被非发色基团取代,或者是烯基,羧基,烷基磺酰基,芳基磺酰基或芳烷基磺酰基,氰基, 磺基或膦酸二烷基酯,并且R 2是氢,烷基或烯基,其各自是未取代的或被非发色基团取代,条件是R1和R2中至多一个 是氢。 这些化合物用于增白高分子量有机材料,特别是聚酯。 它们可以与其他荧光增白剂混合使用。
摘要:
The invention relates to vinylstilbene compounds of the formula ##STR1## wherein Q is the grouping --COX or ##STR2## These compounds are obtained by reacting 1 molar equivalent of a compound of the formula II ##STR3## wherein X is chlorine, bromine or iodine, in the presence of a base and with the addition of palladium metal or of palladium compounds, as catalyst, which, under the reaction conditions, form labile palladium(O) compounds which do not contain phosphorus, with 1 molar equivalent of a compound of the formula III or with 1 molar equivalent of each of the compounds of the formulae III and IV ##STR4##
摘要:
Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that differs from the first, a process for the preparation of said mixtures by condensing terephthalaldehyde with a di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile to cyano-4-formylstilbene, which is further condensed, either direct or after isolation, with at least one other di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.
摘要:
Detergents which, in addition to inorganic and/or organic peracids, contain specific bis-benzofuranyl compounds as fluorescent whitening agents. These detergents are stable for several months and already show the customary cleaning properties at washing temperatures of 20.degree.-60.degree. C.
摘要:
Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of 1-(4-cyanostyryl)-4-(3'-styryl)benzene, 49 to 1% by weight of 1-(4-cyanostyryl)-4-(2'-cyanostyryl)benzene and 0.5 to 5% by weight of 1,4-bis(cyanostyryl)benzene, a process for the preparation of said mixtures by condensing terephthalaldehyde with a 4-dialkylphosphonomethylbenzonitrile to 4-cyano-4'-formylstilbene, which is further condensed, either direct or after isolation, with a 3- and 2-dialkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.
摘要:
Liquid detergent compositions which are stable on storage and contain fluorescent whitening agents from the class of the disulfonated distyrylbiphenyl and distyrylphenyl compounds; they do not produce bleach spots on direct contact with textile fabric. Some of the fluorescent whitening agents used are novel.
摘要:
Mixtures of fluorescent whitening agents consisting of 51 to 99% by weight of a symmetrically or unsymmetrically substituted first 1,4-bis(cyanostyryl)benzene and 49 to 1% by weight of an unsymmetrically substituted second 1,4-bis(cyanostyryl)benzene that differs from the first, a process for the preparation of said mixtures by condensing terephthalaldehyde with a di(C.sub.1 -C.sub.4) alkylphosphonomethylbenzonitrile to cyano-4-formylstilbene, which is further condensed, either direct or after isolation, with at least one other di(C.sub.1 -C.sub.4)alkylphosphonomethylbenzonitrile, the use of these mixtures for whitening polyester fibres, and compositions containing said mixtures for whitening polyester fibres.