2,6-diamino-p-xylene | 51136-52-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,6-diamino-p-xylene
• 英文别名: 2,5-dimethyl-m-phenylenediamine；2,5-Dimethyl-m-phenylendiamin；2.5-Dimethyl-phenylendiamin-(1.3)；2.6-Diamino-1.4-dimethyl-benzol；2.6-Diamino-m-xylol；2,5-dimethyl-1,3-benzenediamine；2,5-Dimethylbenzene-1,3-diamine
• CAS: 51136-52-8
• 化学式: C₈H₁₂N₂
• mdl: MFCD07772056
• 分子量: 136.197
• InChiKey: KRACQCKFIKMTTP-UHFFFAOYSA-N

物化性质

• 沸点：
  293.1±35.0 °C(Predicted)
• 密度：
  1.076±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  52
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,6-diamino-p-xylene 在 盐酸 、 tin(ll) chloride 、 sodium nitrite 作用下， 以 乙醇 、 水 、 甲苯 为溶剂， 反应 5.5h， 生成 2-acetylamino-6-methoxy-1,4-dimethyl-5,6,7,8-tetrahydrocarbazoles
  参考文献：
  名称：

  2-氨基-6-甲氧基-1-甲基（和1,4-二甲基）咔唑衍生物及其6-氮杂类似物的便捷合成

  摘要：

  2，6-二氨基甲苯（3a）和2，6-二氨基对二甲苯（3c）产生2-甲基（和2，5-二甲基）-3-乙酰基氨基苯肼5a，b。费歇尔将衍生自4-甲氧基环己酮和4-哌啶酮的6a，b和7a，b进行了吲哚化，然后将中间体四氢咔唑衍生物8a，b和9a，b芳构化，这为我们找到标题化合物的便捷途径。

  DOI：

  10.1002/jhet.5570290634
• 作为产物：
  描述：

  2-氯-1,4-二甲基-3,5-二硝基-苯 在 palladium on activated charcoal 氢气 作用下， 以 乙醇 为溶剂， 60.0 ℃ 、5.0 MPa 条件下， 反应 2.0h， 以59%的产率得到2,6-diamino-p-xylene
  参考文献：
  名称：

  2-氨基-6-甲氧基-1-甲基（和1,4-二甲基）咔唑衍生物及其6-氮杂类似物的便捷合成

  摘要：

  2，6-二氨基甲苯（3a）和2，6-二氨基对二甲苯（3c）产生2-甲基（和2，5-二甲基）-3-乙酰基氨基苯肼5a，b。费歇尔将衍生自4-甲氧基环己酮和4-哌啶酮的6a，b和7a，b进行了吲哚化，然后将中间体四氢咔唑衍生物8a，b和9a，b芳构化，这为我们找到标题化合物的便捷途径。

  DOI：

  10.1002/jhet.5570290634

文献信息

• PROCESS FOR HYDROGENATING AROMATIC DI- AND POLYAMINES
  申请人：Bayer MaterialScience AG

  公开号：US20150218082A1

  公开（公告）日：2015-08-06

  A catalytic process for hydrogenating aromatic di- and polyamines with the aid of a selected catalyst system is provided, which comprises a mixture of a first heterogeneous catalyst and a second heterogeneous catalyst and a nitro compound (nitrate and/or nitrite salt). The first and second heterogeneous catalyst each independently comprise a metal selected from the group consisting of Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd and/or Pt and the metal selected for the second heterogeneous catalyst is different from the metal selected for the first heterogeneous catalyst. Hydrogenation of aromatic rings having two or more amino groups bound to the aromatic ring produces cycloaliphatic di- and polyamines, which are useful chemical intermediates, e.g., for further reaction with epoxides or isocyanates. The amino groups may also be converted to isocyanates via reaction with phosgene. The resulting cycloaliphatic di- and polyisocyanates may also be used as monomers for making polymers.

  提供了一种催化氢化芳香族二元和多元胺的过程，该过程借助于一个选定的催化剂系统，其中包括第一异相催化剂和第二异相催化剂的混合物以及硝基化合物（硝酸盐和/或亚硝酸盐）。第一和第二异相催化剂各自独立地包含从Cr、Mo、W、Mn、Re、Fe、Ru、Os、Co、Rh、Ir、Ni、Pd和/或Pt组成的金属，并且第二异相催化剂选择的金属与第一异相催化剂选择的金属不同。氢化具有两个或更多氨基固定在芳香环上的芳香环产生环脂肪族二元和多元胺，这些是有用的化学中间体，例如，用于与环氧化物或异氰酸酯进一步反应。氨基团也可以通过与光气反应转化为异氰酸酯。所得到的环脂肪族二元和多元异氰酸酯也可以用作制造聚合物的单体。
• Impact modified polyamide/polycarbonate blends
  申请人：GENERAL ELECTRIC COMPANY

  公开号：EP0301234A2

  公开（公告）日：1989-02-01

  Thermoplastic molding composition comprising amorphous polyamide and polycarbonate resin blends exhibit improved impact resistance by addition of a polyamide - polyether block copolymer.

  由无定形聚酰胺和聚碳酸酯树脂混合物组成的热塑性模塑组合物，通过添加聚酰胺-聚醚嵌段共聚物，提高了抗冲击性。
• Use of capped surfactants for production of rigid polyurethane foams blown with hydrochlorofluorocarbons
  申请人：UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION

  公开号：EP0533202A1

  公开（公告）日：1993-03-24

  Composition and process for production of rigid polyurethane and polyisocyanurate foam, and foam made from such composition and by such process. A composition for production of rigid polyurethane foam includes a) an organic compound containing at least 1.8 isocyanate-reactive groups per molecule; b) an organic polyisocyanate selected from the group consisting of: b1) alkyl or cycloalkyl polyisocyanates having at least two isocyanate groups, and in which the alkyl portion contains 2-6 carbon atoms; and b2) aromatic polyisocyanates containing at least 2 isocyanate groups, and at least two six-membered aromatic rings which are fused together or are joined by a carbon-carbon bond or are linked by a divalent linkage selected from the group consisting of alkylene groups of 1-6 carbon atoms, -O-, -CO-, -CO₂-, -S-, and -SO₂-; c) a catalytically effective amount of a catalyst capable of promoting formation of urethane bonds; d) an effective amount of a hydrochlorofluorocarbon blowing agent; and e) a foam stabilizing amount of a hydrolytically stable siloxane-oxyalkylene block copolymer surfactant containing capped hydroxyl groups in the oxyalkylene portion of the molecule. A process for making rigid polyurethane foam involves reacting and foaming such composition.

  生产硬质聚氨酯和聚异氰脲酸酯泡沫塑料的组合物和工艺，以及用这种组合物和工艺制作的泡沫塑料。生产硬质聚氨酯泡沫塑料的组合物包括 a) 有机化合物，每个分子至少含有 1.8 个异氰酸酯反应基团的有机化合物； b) 选自以下组别的有机多异氰酸酯：b1) 具有至少两个异氰酸酯基团的烷基或环烷基多异氰酸酯，其中烷基部分含有 2-6 个碳原子；b2) 芳香族多异氰酸酯，含有至少 2 个异氰酸酯基团和至少 2 个六元芳香环，这 些芳香环融合在一起，或通过碳-碳键连接，或通过二价连接，二价连接选自由 1-6 个碳原子的亚烷基、-O-、-CO-、-CO₂-、-S- 和-SO₂- 组成的组；c) 催化有效量的能促进聚氨酯键形成的催化剂； d) 有效量的氯氟烃发泡剂；以及 e) 水解稳定的硅氧烷-氧亚烷基嵌段共聚物表面活性剂的泡沫稳定剂，该表面活性剂在分子的氧亚烷基部分含有封端羟基。制造硬质聚氨酯泡沫塑料的工艺包括对这种组合物进行反应和发泡。
• POLYIMIDE PRECURSOR COMPOSITION, POLYIMIDE FILM AND TRANSPARENT FLEXIBLE FILM
  申请人：Hitachi Chemical DuPont Microsystems, Ltd.

  公开号：EP2248843A1

  公开（公告）日：2010-11-10

  The polyimide precursor composition of the present invention is characterized in comprising a polyimide precursor having a structure formed by reacting a diamine component (A) containing a fluorine-containing aromatic diamine (a1) represented by the following chemical formula (I) (in the formula (I), R1 and R2 are each independently selected from -H, -(CF2)n-CF3, and -O(CF2)n-CF3 (n is an integer of 0 or more and 7 or less), and at least one of R1 and R2 is a fluorine-containing group) and trans-1,4-cyclohexyldiamine (a2) with an acid dianhydride component(B) containing an aliphatic tetracarboxylic dianhydride (b1) and an aromatic tetracarboxylic dianhydride (b2). Use of the composition of the present invention provides a polyimide film and a transparent flexible film having high transparency, low thermal expansion properties, low birefringent properties, and high heat resistance.

  本发明的聚酰亚胺前体组合物的特征在于，它包括一种聚酰亚胺前体，其结构是由二元胺组分（A）与含氟芳香族二元胺（a1）反应形成的，二元胺组分（a1）由以下化学式（I）表示 式（I）中，R1 和 R2 各自独立地选自-H、-(CF2)n-CF3 和-O(CF2)n-CF3（n 为 0 或 0 以上 7 或 7 以下的整数），且 R1 和 R2 中至少有一个是含氟基团）和反式-1、4-Cyclohexyldiamine (a2)，以及含有脂肪族四羧酸二酐 (b1) 和芳香族四羧酸二酐 (b2) 的酸酐组分 (B)。使用本发明的组合物可以得到具有高透明度、低热膨胀性、低双折射性和高耐热性的聚酰亚胺薄膜和透明柔性薄膜。
• Optically clear biofouling resistant coating compositions for marine instruments and application methods
  申请人：Severn Marine Technologies, LLC

  公开号：EP2363438A1

  公开（公告）日：2011-09-07

  An optically clear biofouling resistant coating compositions specially formulated for very high light transmission and more particularly coating compositions which can be applied to marine instruments and sensors. The compositions provide a biofouling resistant coating on the surface of the marine instruments and sensors which prevents underwater organisms from adhering and growing on the surfaces of the structures over a long period of time.

  一种光学透明防生物污损涂层组合物，专为极高透光率而配制，尤其是可用于海洋仪器和传感器的涂层组合物。这种组合物可在海洋仪器和传感器的表面形成一层防生物污损涂层，防止水下生物长期附着和生长在这些结构的表面。