2-Isocyanato-4-(4-isocyanato-benzyl)-1,3,5-trimethyl-benzene | 98742-48-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: 2-Isocyanato-4-(4-isocyanato-benzyl)-1,3,5-trimethyl-benzene
• 英文别名: 2-Isocyanato-4-[(4-isocyanatophenyl)methyl]-1,3,5-trimethylbenzene
• CAS: 98742-48-4
• 化学式: C₁₈H₁₆N₂O₂
• 分子量: 292.337
• InChiKey: SOQXWJIWEAYDRZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.5
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  58.9
• 氢给体数：
  0
• 氢受体数：
  4

文献信息

• Process for refining 1,3-dimethyl-2-imidazolidinone and a process for preparing an aromatic polyamide by use of the refined product
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0332425A1

  公开（公告）日：1989-09-13

  A refining process for removing impurities from 1,3-dimethyl-2-imidazolidinone (DMI) employs a composite salt containing MgO and/or SiO₂ composition moieties and the DMI to be refined is brought into contact with the salt at a temperature in the range of 5 - 180°C. A process for preparing an aromatic polyamide having a high polymerization degree from an aromatic diisocyanate and an aromatic dicarboxylic acid by using as a reaction solvent, DMI purified by the above-mentioned process.

  一种从 1,3-二甲基-2-咪唑烷酮（DMI）中去除杂质的精制工艺采用了一种含有 MgO 和/或 SiO₂组成分子的复合盐，并在 5 - 180°C 的温度范围内将待精制的 DMI 与该盐接触。用上述工艺提纯的 DMI 作为反应溶剂，用芳香族二异氰酸酯和芳香族二羧酸制备具有高聚合度的芳香族聚酰胺的工艺。
• Process for producing aromatic polyamides
  申请人：MITSUI TOATSU CHEMICALS, Inc.

  公开号：EP0328342A2

  公开（公告）日：1989-08-16

  Aromatic polyamides are produced by subjecting an aromatic diisocyanate and an aromatic dicarboxylic acid to polycondensation in the presence of an alkali metal compound and/or an alkaline earth metal compound as a catalyst in an aprotonic polar solvent. The aromatic polyamide can be rendered suitable for use in the production of high-tenacity fibers by charging in advance the solvent, aromatic dicarboxylic acid and catalyst in a mixing system, reducing the water content in the mixing system to 50 ppm or below and then introducing the aromatic diisocyanate to conduct the polycondensation reaction.

  芳香族聚酰胺的生产方法是：在有碱金属化合物和/或碱土金属化合物作为催化剂的情况下，在质子极性溶剂中将芳香族二异氰酸酯和芳香族二羧酸进行缩聚。 在混合系统中预先加入溶剂、芳香族二羧酸和催化剂，将混合系统中的水含量降至 50ppm 或以下，然后引入芳香族二异氰酸酯进行缩聚反应，可使芳香族聚酰胺适用于生产高韧性纤维。
• US4923951A
  申请人：——

  公开号：US4923951A

  公开（公告）日：1990-05-08
• US5011936A
  申请人：——

  公开号：US5011936A

  公开（公告）日：1991-04-30
• US5075406A
  申请人：——

  公开号：US5075406A

  公开（公告）日：1991-12-24