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    • 1. 发明授权
    • Cationic 1,3,4-thiadiazole dyestuffs
    • US5208325A
    • 1993-05-04
    • US805147
    • 1991-12-11
    • Horst BernethKlaus Leverenz
    • Horst BernethKlaus Leverenz
    • C09B44/20C07D285/12C07D285/135C09B44/10C09D11/00C09D11/02D06P1/08D06P3/76D21H21/28
    • C07D285/135C09B44/107
    • Cationic 1,3,4-thiadiazole dyestuff of the formula ##STR1##in whichR.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nitrogen atom, or being bound through a methylene or ethylene group, or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached form a heterocycle,R.sup.3 denotes alkyl, alkenyl or aralkyl,R.sup.4 denotes hydrogen or alkyl,R.sup.5 denotes acyl,R.sup.6 and R.sup.7, independently of one another, denote hydrogen, alkyl, alkoxy, aryloxy or halogen andR.sup.8 and R.sup.9, independently of one another, denote hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, a heterocycle, said heterocycle having a direct bond to the nitrogen atom, or being bound through a methylene or ethylene group, or R.sup.8 and R.sup.9, together with the nitrogen atom to which they are attached form a heterocycle, orR.sup.6 and R.sup.8 together with the nitrogen to which R.sup.8 is attached completes a heterocyclic, said R.sup.6 and R.sup.8 having a total of from 2 to 4 atoms, one of which can be oxygen or nitrogen, said heterocyclic being either unsubstituted or substituted with from 1 to 3 alkyl groups orR.sup.7 and R.sup.9, together with the nitrogen to which R.sup.9 is bound completes a heterocyclic, said R.sup.7 and R.sup.9 having a total of from 2 to 4 atoms, one of which may be oxygen or nitrogen, said heterocyclic being either unsubstituted or substituted with from 1 to 3 alkyl groups, andX.sup.e denotes an anion andin which all alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy and heterocyclic radicals present may be substituted by nonionic substitutents, carboxyl groups, ammonium groups and/or pyridinium groups wherein the nonionic substituents are substituents selected from the group consisting of cyano, hydroxyl, fluorine, chlorine, bromine, nitro, alkyl, monoalkylamino, dialkylamino, alkoxy, phenyl, acyloxy, acylamino, alkoxycarbonyl and alkoxycarbonyloxy.
    • 5. 发明授权
    • Process for the preparation of azo dyestuffs
    • 偶氮染料的制备方法
    • US4083846A
    • 1978-04-11
    • US674929
    • 1976-04-08
    • Klaus Leverenz
    • Klaus Leverenz
    • C09B41/00C09B43/40C09B43/42C09B43/00C09B29/08C09B29/26
    • C09B41/002C09B43/40C09B43/405C09B43/42
    • The invention relates to the preparation of azo dyestuffs which are free from sulphonic acid groups by diazotization, coupling and subsequent nucleophilic exchange of a halogen atom of the diazo component is in the o-position relative to the azo group. The process is characterized in that all the reaction steps are carried out in a neutral organic dipolar solvent, with the proviso that when using diazo components which are not diazotizable, or only incompletely diazotizable, in dilute aqueous mineral acids, the diazotization medium employed consists of aprotic solvents which do not undergo any chemical reaction with the diazonium salt of this component. The new process is distinguished by less contamination of the effluent.
    • 本发明涉及通过重氮化,偶联和随后的重氮组分的卤素原子的亲核交换在相对于偶氮基的o位置中不含磺酸基团的偶氮染料的制备。 该方法的特征在于所有的反应步骤都是在中性有机偶极溶剂中进行的,条件是当使用稀有的无机酸水溶液中使用不能重氮化或不完全重氮化的重氮组分时,所用的重氮化介质包括 不与该组分的重氮盐发生化学反应的非质子溶剂。 新工艺的特点是废水污染少。
    • 8. 发明授权
    • Halo-substituted amino-and substituted-sulphonamido-containing azo
dyestuffs
    • 卤代氨基和取代磺酰氨基偶氮染料
    • US4424156A
    • 1984-01-03
    • US185660
    • 1980-09-10
    • Rainer HamprechtKlaus Leverenz
    • Rainer HamprechtKlaus Leverenz
    • C09B29/08C09B29/036C09B29/039C09B29/085C09B29/09
    • C09B29/0833Y10S534/02
    • An azo dyestuff suited for dyeing polyester, of the formula ##STR1## in which Hal is F, Cl, Br or I, R.sub.1 is a C.sub.1 -C.sub.10 -aliphatic hydrocarbyl or a C.sub.5 -C.sub.8 -cycloalkyl radical optionally substituted by OH, halogen, alkoxy, aryloxy or acyloxy, R.sub.2 is an optionally substituted aliphatic hydrocarbyl, aryl or hetaryl radical, R.sub.1 and R.sub.2 being free from --SO.sub.3 H and/or --COOH radicals, Z.sub.1 to Z.sub.4 each independently is hydrogen, alkyl, cycloalkyl, aralkyl, halogen, --CN, --NO.sub.2, --CF.sub.3, --SO.sub.2 Q, --SO.sub.2 NVW, --COW, --CONVW, --CO.sub.2 W, --OQ, --NVW, --NWCOW, --NWSO.sub.2 Q or --NHCO.sub.2 Q, or Z.sub.2 may also be arylazo, and Z.sub.3 may also be ##STR2## and Z.sub.3 and Z.sub.4 together can be ##STR3## Q is alkyl, aralykl or aryl, U is alkyl, V is H, alkyl or aralkyl, and W is V or aryl.
    • 适用于染色聚酯的偶氮染料,其中Hal为F,Cl,Br或I的式为“IMAGE”,R1为任选被OH,卤素取代的C 1 -C 10 - 脂族烃基或C 5 -C 8环烷基, 烷氧基,芳氧基或酰氧基,R2是任选取代的脂族烃基,芳基或杂芳基,R1和R2不含-SO3H和/或-COOH基团,Z1至Z4各自独立地为氢,烷基,环烷基,芳烷基,卤素, -CN,-NO 2,-CF 3,-SO 2 Q,-SO 2 N V W,-COW,-CONVW,-CO 2 W,-OQ,-NVW,-NWCOW,-NWSO 2 Q或-NHCO 2 Q,或Z 2也可以是芳基偶氮,Z 3也可以 并且Z 3和Z 4可以一起作为Q是烷基,芳烷基或芳基,U是烷基,V是H,烷基或芳烷基,W是V或芳基。
    • 9. 发明授权
    • Monoazo dyestuff containing di-cyano substituents ortho to the azo group
    • 含偶氮基团的二氰基取代基的单偶氮染料
    • US4237048A
    • 1980-12-02
    • US649253
    • 1976-01-15
    • Alois GottschlichKlaus Leverenz
    • Alois GottschlichKlaus Leverenz
    • C09B29/08C09B43/42C09B29/26C09B29/36
    • C09B43/42C09B29/08
    • Azo dyestuff having the formula ##STR1## in which A is an aromatic carbocyclic radical containing a CN substituent in the o-position to the azo group and K is the radical of a coupling component as well as the process for their production are disclosed. The process involves cyano exchange between a metal cyanide, e.g. CuCN and the corresponding dyestuff containing Cl or Br instead of CN, in an organic solvent particularly polar aprotic organic solvents, e.g. dimethyl sulfoxide. The dyestuffs are suitable for dyeing a variety of fiber material such as cotton, wool, silk as well as synthetic materials such as polyamide and polyethylene terephthalate to give dyeings which are characterized by great clearness and good general fastness properties.
    • 公开了具有式“IMAGE”的偶氮染料,其中A是在与偶氮基相邻的位置上含有CN取代基的芳族碳环基团,K是偶合组分的基团及其生产方法。 该方法包括金属氰化物之间的氰基交换。 CuCN和相应的含有Cl或Br的染料代替CN,在有机溶剂中,特别是极性非质子有机溶剂,例如, 二甲基亚砜。 该染料适用于染色各种纤维材料如棉,羊毛,丝绸以及合成材料如聚酰胺和聚对苯二甲酸乙二醇酯,得到染色,其特征是具有很好的清晰度和良好的耐牢度。