2,4-Diaminophenyl tetrahydrofurfuryl ethers, processes for their
preparation and tinting compositions, which contain them for keratinic
fibres
    1.
    发明授权
    2,4-Diaminophenyl tetrahydrofurfuryl ethers, processes for their preparation and tinting compositions, which contain them for keratinic fibres 失效
    2,4-二氨基苯基四氢糠醚,它们的制备方法和着色组合物,其含有角蛋白纤维

    公开(公告)号:US4857070A

    公开(公告)日:1989-08-15

    申请号:US154495

    申请日:1988-02-08

    CPC classification number: D06P1/32 A61K8/4973 A61Q5/10 C07D307/12

    Abstract: The invention relates to new 2,4-diaminophenyl tetrahydrofurfuryl ethers of the general formula VIII and to their salts with inorganic or organic acids ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, each represent a hydrogen atom, a (C.sub.1 -C.sub.4)alkyl group, hydroxy(C.sub.2 -C.sub.4)alkyl group, dihydroxy(C.sub.3 -C.sub.4)alkyl group, halogeno(C.sub.2 -C.sub.4)alkyl group, amino(C.sub.2 -C.sub.4)alkyl group or an amino(C.sub.2 -C.sub.4)alkyl group which is substituted once or twice by methyl, ethyl or hydroxyethyl radicals on the nitrogen, the carbon chain having a straight or branched arrangement, and it being a proviso that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents a hydrogen atom, to processes for their preparation, and to aqueous tinting compositions for keratin fibres such as fur and human hair, containing at least one coupler and at least one developing component together with customary additives and auxiliaries, the coupler corresponding to the general formula VIII or to the acid salts of these compounds.

    Abstract translation: 本发明涉及通式VIII的新的2,4-二氨基苯基四氢糠基醚及其与无机或有机酸(VIII)的盐,其中R 1,R 2,R 3和R 4彼此独立地表示 氢原子,(C1-C4)烷基,羟基(C2-C4)烷基,二羟基(C3-C4)烷基,卤代(C2-C4)烷基,氨基(C2-C4)烷基或氨基 (C 2 -C 4)烷基,其被氮上的甲基,乙基或羟乙基取代一次或两次,所述碳链具有直链或支链排列,条件是R1,R2,R3和 R4代表氢原子,其制备方法,以及含有至少一种偶联剂和至少一种显影组分以及常规添加剂和助剂的角蛋白纤维如毛皮和人发的水性着色组合物,所述成色剂对应于 通式VIII或这些化合物的酸式盐。

    Substituted 2,6-diaminotoluenes, processes for their preparation and
coloring agents for keratinic fibers comprising these compounds
    4.
    发明授权
    Substituted 2,6-diaminotoluenes, processes for their preparation and coloring agents for keratinic fibers comprising these compounds 失效
    取代的2,6-二氨基苯甲酸酯,其包含这些化合物的可卡因纤维的制备和着色剂的方法

    公开(公告)号:US5230710A

    公开(公告)日:1993-07-27

    申请号:US953053

    申请日:1992-09-30

    CPC classification number: A61Q5/10 A61K8/411 C07C215/16

    Abstract: New substituted 2,6-diaminotoluenes of the general formula I ##STR1## wherein R is a hydrogen atom and R.sup.1 is a radical of the formula Ia--CH.sub.2 --CH(A)--B (Ia)or R and R.sup.1 are independent from each other and are represented by the formula Ia and if A in formula Ia represents a hydrogen atom, B is a hydroxyl group or HO--CH.sub.2 -- group; if A denotes a methyl group, B is a hydroxyl group; with the proviso that formula I is not N-(2-hydroxyethyl)-2,6-toluylenediamine; processes for their preparation and coloring compositions for keratin fibers which contain them. The dyeings produced with the coloring compositions are stable, bright and intense in color. They have improved properties with respect to attack by perspiration, acid rain, detergents, sunlight, UV radiation, seawater and the like.

    Abstract translation: 新的通式I的取代的2,6-二氨基甲苯(I)其中R是氢原子,R 1是式Ia -CH 2 -CH(A)-B(Ia)或R和R 1的基团是 彼此独立并且由式Ia表示,如果式Ia中的A表示氢原子,则B是羟基或HO-CH 2 - 基; 如果A表示甲基,则B是羟基; 条件是式I不是N-(2-羟乙基)-2,6-甲苯二胺; 它们的制备方法和含有它们的角蛋白纤维的着色组合物。 用着色组合物生产的染色是稳定的,明亮的和强烈的颜色。 它们对汗水,酸雨,洗涤剂,阳光,紫外线辐射,海水等的袭击具有改善的性能。

    Process for the selective preparation of N-substituted
1,4-diamino-2-nitrobenzenes
    5.
    发明授权
    Process for the selective preparation of N-substituted 1,4-diamino-2-nitrobenzenes 失效
    选择性制备N-取代的1,4-二氨基-2-硝基苯的方法

    公开(公告)号:US5091581A

    公开(公告)日:1992-02-25

    申请号:US518710

    申请日:1990-05-07

    Inventor: Winfried Seidel

    CPC classification number: A61K8/418 A61Q5/065 C07C269/04 C07C271/28 C09B51/00

    Abstract: The invention relates to a process for the selective preparation of N.sup.4 -substituted 1,4-diamino-2-nitrobenzenes of the general formula I ##STR1## in which R.sub.1 denotes hydrogen, halogen, (C.sub.1 -C.sub.4) alkyl or (C.sub.1 -C.sub.4) alkoxy, it being possible for the carbon atoms to be arranged in straight-chain or branched form, and R.sub.2 represents a radical --COO--CH(A)--CH(B)--D with the meanings A=H, B=H, D=Cl, A=H, B=CH.sub.3, D=Cl, A=H, B=H, D=CH.sub.2 Cl or A=CH.sub.3, B=H and D=Cl (compounds of the general formula Ia) or a radical--CH(X)--CH(Y)--Z with the meanings X=H, Y=H, Z=OH, X=CH.sub.3, Y=H, Z=OH, X=H, Y=H, Z=CH.sub.2 OH or X=H, Y=CH.sub.3 and Z=OH (compounds of the general formula Ib) ##STR2## which is characterized in that 1,4-diamino-2-nitrobenzenes of the general formula II ##STR3## wherein R.sub.1 has the abovementioned meaning, are reacted in a first stage with an approximately equimolar amount of a chloroalkyl chloroformate of the general formula Cl--COO--CH(A)--CH(B)--D, wherein A, B and D have the above-mentioned meanings, in a predominantly aqueous medium which contains--based on the water present--not more than 20 percent by weight of an organic solvent, and preferably in a purely aqueous medium to give carbamates of the general formula Ia and if appropriate these carbamates are converted into compounds of the general formula Ib in a second stage by means of treatment with a base.

    Abstract translation: 本发明涉及选择性制备通式I(I)的N4-取代的1,4-二氨基-2-硝基苯的方法,其中R 1表示氢,卤素,(C 1 -C 4)烷基或(C 1 -C 4) C1-C4)烷氧基,可以将碳原子排列成直链或支链形式,R2表示含义A = H的基团-COO-CH(A)-CH(B)-D, B = H,D = Cl,A = H,B = CH 3,D = Cl,A = H,B = H,D = CH 2 Cl或A = CH 3,B = H和D = Cl )或基团-CH(X)-CH(Y)-Z,其含义X = H,Y = H,Z = OH,X = CH 3,Y = H,Z = OH,X = H,Y = H ,Z = CH 2 OH或X = H,Y = CH 3和Z = OH(通式Ib的化合物)(Ia)其中特征在于1,4-二氨基-2-硝基苯 通式II(II)其中R1具有上述含义,在第一阶段与大约等摩尔量的通式为Cl-COO-CH(A)-CH(B)的氯甲酸氯代烷基酯反应, -D,其中A,B和D具有上述 意思是在主要含水介质中,其含有基于存在的水不超过20重量%的有机溶剂,优选在纯水性介质中,得到通式Ia的氨基甲酸酯,如果合适,则将这些氨基甲酸酯转化 通过用碱处理在第二阶段中形成通式Ib的化合物。

    Substituted 4-amino-3-nitrophenols, processes for their preparation and
hair-coloring agents containing these compounds
    6.
    发明授权
    Substituted 4-amino-3-nitrophenols, processes for their preparation and hair-coloring agents containing these compounds 失效
    取代的4-氨基-3-硝基苯酚,其制备方法和含有这些化合物的发色剂

    公开(公告)号:US4575378A

    公开(公告)日:1986-03-11

    申请号:US572028

    申请日:1984-01-19

    CPC classification number: A61K8/418 A61Q5/065 A61Q5/10

    Abstract: The invention relates to new 3-nitro-4-aminophenols of the formula (I) ##STR1## in which R denotes hydrogen or halogen, preferably chlorine or bromine, and R' denotes hydrogen or alkyl, hydroxyalkyl, dihydroxyalkyl or halogenohydroxyalkyl which has 1 to 6 carbon atoms and is straight-chain or branched, with the proviso that, if R is hydrogen, R' does not denote hydrogen, methyl or .beta.-hydroxyethyl.Processes for their preparation: (a) by reacting corresponding 3-nitro-4-aminophenols with certain halogenoalkyl chloroformates and subsequent basic treatment of the process products, or (b) by reacting corresponding 4-halogeno-3-nitrophenols with certain amines, and the intermediate products obtained and coloring agents for keratinic fibres, preferably for human hair, which contain at least one compound of the formula (I).

    Abstract translation: 本发明涉及式(I)的新的3-硝基-4-氨基苯酚(1),其中R表示氢或卤素,优选氯或溴,R'表示氢或烷基,羟烷基,二羟基烷基或卤代羟基烷基 其具有1至6个碳原子并且是直链或支链的,条件是如果R是氢,则R'不表示氢,甲基或β-羟乙基。 其制备方法:(a)通过相应的3-硝基-4-氨基苯酚与某些卤代烷基氯甲酸酯反应,随后对该产物进行碱处理,或(b)通过相应的4-卤代-3-硝基苯酚与某些胺反应,和 获得的中间产物和用于角蛋白纤维的着色剂,优选用于人类头发,其含有至少一种式(I)的化合物。

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