2,6-二羟基-3,4-二甲基吡啶 | 84540-47-6

• 物质功能分类: 医药中间体 - 杂环化合物 - 吡啶类化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 2,6-二羟基-3,4-二甲基吡啶
• 英文名称: 2,6-dihydroxy-3,4-dimethyl-pyridine
• 英文别名: 2,6-dihydroxy-3,4-dimethylpyridine；3,4-dimethyl-2,6-dihydroxypyridine；3,4-dimethyl-pyridine-2,6-diol；3,4-Dimethyl-pyridin-2,6-diol；6-hydroxy-3,4-dimethyl-2-pyridone；2,6-dihydroxy-3,4-di methylpyridine；6-hydroxy-4,5-dimethyl-1H-pyridin-2-one
• CAS: 84540-47-6
• 化学式: C₇H₉NO₂
• mdl: MFCD05662686
• 分子量: 139.154
• InChiKey: KIEGFAYDOKCBOK-UHFFFAOYSA-N

物化性质

• 熔点：
  187 °C
• 沸点：
  346.3±42.0 °C(Predicted)
• 密度：
  1.194±0.06 g/cm3(Predicted)
• LogP：
  1.118 (est)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.285
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  2

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 海关编码：
  2933399090
• 储存条件：
  室温下，使用惰性气体。

反应信息

• 作为反应物：
  描述：

  2,6-二羟基-3,4-二甲基吡啶 在 甲醇 、 potassium acetate 、 钯 、 三氯氧磷 作用下， 生成 3,4-二甲基吡啶
  参考文献：
  名称：

  Wibaut; Kooyman, Recueil des Travaux Chimiques des Pays-Bas, 1944, vol. 63, p. 231,236

  摘要：

  DOI：
• 作为产物：
  描述：

  2-cyano-3,4-dimethyl-pentenedioic acid diethyl ester 在 盐酸 作用下， 生成 2,6-二羟基-3,4-二甲基吡啶
  参考文献：
  名称：

  Ames et al., Journal of the Chemical Society, 1953, p. 3008,3010

  摘要：

  DOI：

文献信息

• [EN] NEW CATIONIC DYES, KITS AND COMPOSITIONS THEREOF, AND PROCESS FOR DYEING KERATIN FIBERS<br/>[FR] NOUVEAUX COLORANTS CATIONIQUES, KITS ET COMPOSITIONS LES CONTENANT, ET PROCÉDÉ DE TEINTURE DE FIBRES KÉRATINIQUES
  申请人：ALFA PARF GROUP S P A

  公开号：WO2014202150A1

  公开（公告）日：2014-12-24

  The present invention relates to new cationic dyes of general formula (I) and (II): The invention also relates to kits and compositions for dyeing keratin fibers, which contain at least one of these dyes as well as to a process for dyeing keratin fibers using at least one of these dyes.

  本发明涉及一般式(I)和(II)的新阳离子染料：该发明还涉及用于染色角蛋白纤维的套件和组合物，其中至少含有这些染料之一，以及使用至少一种这些染料染色角蛋白纤维的方法。
• Compositions for oxidatively dyeing keratin fibers and methods for using such compositions
  申请人：Lim Mu'Ill

  公开号：US20070209123A1

  公开（公告）日：2007-09-13

  Compositions for dyeing keratin fibers comprise (a) at least one keratin dyeing compound selected from aromatic systems which comprise at least one boronic acid or boronic ester moiety and which are capable of forming upon oxidation a nucleophile or an electrophile, (b) at least one additional keratin dyeing compound selected from the group consisting of auxiliary developers and auxiliary couplers, and (c) a cosmetically suitable medium. Methods for oxidatively dyeing keratin fibers comprise the steps of applying such compositions in the presence of an oxidizing agent and rinsing the hair. A hair coloring product in kit form comprises a first separately packaged container comprising a composition as described above and a second separately packaged container comprising an oxidizing agent.

  用于染色的组合物包括：(a)至少一种选自含有至少一个硼酸或硼酸酯基团的芳香族系统的角蛋白染料化合物，这些化合物在氧化时能够形成亲核物或亲电子物；(b)至少一种额外的角蛋白染料化合物，选自辅助显色剂和辅助偶联剂的组合；(c)一种化妆品适用的介质。氧化染角蛋白纤维的方法包括在氧化剂存在下应用这样的组合物，并冲洗头发。一种套装形式的头发染色产品包括一个第一独立包装容器，其中包含上述描述的组合物，以及一个第二独立包装容器，其中包含氧化剂。
• Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
  申请人：Lim Mu'lll

  公开号：US20060156481A1

  公开（公告）日：2006-07-20

  Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one N-oxides of six-membered rings with one or two nitrogen atoms keratin dyeing compound. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

  氧化染色角蛋白纤维的配方，包括适用于染色的介质和至少一种含有一个或两个氮原子的六元环N-氧化物的角蛋白染料化合物。一种氧化染色角蛋白纤维的方法，包括在氧化剂存在下施用这种配方，以足够时间发展所需的着色。
• Coupling compounds and hair dyeing compositions containing them
  申请人：DyStar Textilfarben GmbH & Co. Deutschland KG

  公开号：EP1847528A1

  公开（公告）日：2007-10-24

  The present invention refers to compounds of the formula (I) wherein R1 is (C1-C4)-alkyl, (C1-C4)-alkyl which is substituted by hydroxy, (C1-C4)-alkoxy, hydroxy-(C1-C4)-alkoxy, CN, -COOR5, -CON(R5)2 or -N(R5)2 or is phenyl; R2 is hydrogen, methyl or ethyl; R3 is (C1-C4)-alkylsulfonyl, (C1-C4)-alkylsulfonyl which is substituted by hydroxy, halogen, cyano, (C1-C4)-alkoxy or -N(R5)2 or is -SO2-CH=CH2, -SO2N(R5)2 or -PO(OR5)2; R4 is hydrogen, (C2-C4)-alkyl which is substituted by hydroxy, (C1-C4)-alkoxy or hydroxy-(C1-C4)-alkoxy; each of R5, independently is hydrogen, (C1-C4)-alkyl or hydroxy-(C2-C4)-alkyl; whereas R3 is not -NHSO2CH3 if R2 and R4 are both hydrogen and R1 is methyl, as well as hair dye compostions containing them.

  本发明涉及以下式(I)的化合物其中R1是(C1-C4)-烷基，被羟基取代的(C1-C4)-烷基，(C1-C4)-氧烷基，羟基-(C1-C4)-氧烷基，CN，-COOR5，-CON(R5)2或-N(R5)2或是苯基；R2是氢，甲基或乙基；R3是(C1-C4)-烷基磺酰基，被羟基，卤素，氰基，(C1-C4)-氧烷基或-N(R5)2取代的(C1-C4)-烷基磺酰基，或是-SO2-CH=CH2，-SO2N(R5)2或-PO(OR5)2；R4是氢，被羟基，(C1-C4)-氧烷基或羟基-(C1-C4)-氧烷基取代的(C2-C4)-烷基；R5中的每一个独立地是氢，(C1-C4)-烷基或羟基-(C2-C4)-烷基；其中如果R2和R4都是氢且R1是甲基，则R3不是-NHSO2CH3，以及含有它们的染发组合物。
• [EN] DYE COMPOSITION COMPRISING A CATIONIC O-ALKYL-SUBSTITUTED META-PHENYLENEDIAMINE DERIVATIVE<br/>[FR] COMPOSITION DE TEINTURE COMPRENANT UN DÉRIVÉ DE MÉTA-PHÉNYLÈNEDIAMINE CATIONIQUE À SUBSTITUTION ALKYLE O
  申请人：OREAL

  公开号：WO2014026952A1

  公开（公告）日：2014-02-20

  The invention relates to a meta-phenylenediamine compound of formula (I) below, the addition salts thereof with an acid and the solvates thereof: in which: R represents a hydrogen or halogen atom; a C1-C4 alkyl radical; a carboxyl radical or a (C1-C4) alkoxycarbonyl radical, R1 represents a linear C1-C10 alkyl radical substituted with a cationic radical, said alkyl radical being optionally interrupted with one or more oxygen atoms and/or with one or more NR6 groups, said cationic radical being optionally substituted with one or more radicals chosen from C1-C4 alkoxy or C1-C4 (hydroxy )alkyl; R6 represents a hydrogen atom or a linear or branched C1-C4 alkyl radical; An- represents an anion or a mixture of anions which are organic or inorganic and cosmetically acceptable.

  该发明涉及以下式（I）的一个甲苯二胺类化合物，以及其与酸的加合盐和溶剂化合物：其中：R代表氢或卤素原子；一个C1-C4烷基基团；一个羧基或（C1-C4）烷氧羰基基团，R1代表一个线性的C1-C10烷基基团，该基团被一个阳离子基团取代，所述烷基基团可以选择性地被一个或多个氧原子和/或一个或多个NR6基团中断，所述阳离子基团可以选择性地被一个或多个从C1-C4烷氧基或C1-C4（羟基）烷基中选择的基团取代；R6代表氢原子或线性或支链的C1-C4烷基基团；An-代表一个有机或无机且在化妆品中可接受的阴离子或阴离子混合物。