2,3,5-trihydroxynaphthalene | 26628-39-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 2,3,5-trihydroxynaphthalene
• 英文别名: naphthalene-1,6,7-triol；1.6.7-Trioxy-naphthalin；Naphthalin-1,6,7-triol
• CAS: 26628-39-7
• 化学式: C₁₀H₈O₃
• 分子量: 176.172
• InChiKey: GBMMWPJEWMJGCK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  60.7
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-偶氮基苯磺酸酯 、 2,3,5-trihydroxynaphthalene 在 溶剂黄146 作用下， 生成 4-amino-naphthalene-1,6,7-triol
  参考文献：
  名称：

  Friedlaender; Silberstern, Monatshefte fur Chemie, 1902, vol. 23, p. 532

  摘要：

  DOI：
• 作为产物：
  描述：

  2,萘酚-3,6,8-三磺酸 在 alkali 作用下， 生成 2,3,5-trihydroxynaphthalene
  参考文献：
  名称：

  DE112098

  摘要：

  公开号：

文献信息

• 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。
• Thermosetting resin composition, electrically insulated coil, electric rotating machine and method for producing same
  申请人：HITACHI, LTD.

  公开号：EP0810249A2

  公开（公告）日：1997-12-03

  A highly thermal-conductive and thermal-resistant electrically insulated coil with less outflow of a thermosetting resin composition can be produced, to provide a small-scale, light-weight rotating machine with high power. The thermosetting resin composition comprising (a) a polyfunctional epoxy resin containing three or more p-(2,3-epoxypropoxy)phenyl groups and a group represented by the Chemical formula 1; or an epoxy resin with a naphthalene backbone, represented by the Chemical formula 3, 4 or 5 or an epoxy resin with an anthracene backbone, such as diglycidyl ether of anthracene diol and triglycidyl ether of anthracene triol; (b) a bifunctional epoxy resin containing two p-(2,3-epoxypropoxy)phenyl groups; (c) an acid anhydride curing agent; and (d) a metal acetonate curing catalyst represented by the Chemical formula 2 at 0.1 to 5 parts by weight per 100 parts by weight of the epoxy resins. In accordance with the present invention, a highly thermal-conductive and thermal-resistant electrically insulated coil with less outflow of the thermosetting resin composition can be produced, to provide a small-scale, light-weight rotating machine armature with high power.

  可以生产出热固性树脂组合物流出量较少的高导热性和耐热性电绝缘线圈，从而提供一种小型、轻质、高功率的旋转机械。 热固性树脂组合物包括 (a) 多官能环氧树脂，含有三个或三个以上对(2,3-环氧丙氧基)苯基和一个化学式 1 所代表的基团；或化学式 3、4 或 5 所代表的以萘为骨架的环氧树脂，或以蒽为骨架的环氧树脂，如蒽二醇二缩水甘油醚和蒽三醇三缩水甘油醚； (b) 含有两个对(2,3-环氧丙氧基)苯基的双官能环氧树脂； (c) 酸酐固化剂；以及 (d) 由化学式 2 表示的金属丙酮酸盐固化催化剂，以每 100 份环氧树脂的重量计， 其含量为 0.1 至 5 份。 根据本发明，可以生产出一种热固性树脂组合物流出量较少的高导热性和耐热性电绝缘线圈，以提供一种具有高功率的小型轻质旋转机器电枢。
• AROMATIC POLYESTER
  申请人：Muroran Institute of Technology

  公开号：EP2479203A1

  公开（公告）日：2012-07-25

  The present invention provides an aromatic polyester which is substantially free from the occurrence of coloration and retains significantly high transparency even after being thermally processed at high temperature and which has high flowability. The aromatic polyester contains a polyhydric phenol residue and a residue of any one of aromatic polycarboxylic acid, halide thereof, and anhydride thereof, and terminals of the aromatic polyester have a structure represented by the formula -C(O)-R. The aromatic polyester has an end-capping rate of 90% or higher and a weight average molecular weight (Mw) ranging from 3,000 to 1,000,000.

  本发明提供了一种芳香族聚酯，该聚酯基本上不会发生着色，即使在高温热加工后仍能保持明显的高透明度，并且具有高流动性。芳香族聚酯含有多羟基苯酚残留物和芳香族多羧酸、其卤化物和其酸酐中任意一种的残留物，芳香族聚酯的端基具有式 -C(O)-R 所代表的结构。芳香族聚酯的端盖率为 90% 或更高，重量平均分子量（Mw）为 3,000 至 1,000,000 之间。
• DE110618
  申请人：——

  公开号：——

  公开（公告）日：——
• Display composition, coloring pigment, and recording material
  申请人：SONY CORPORATION

  公开号：EP0395006B1

  公开（公告）日：1994-08-31