1,4-Bis(2-hydroxyethyl)-2-methyl-piperazin | 3477-43-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 1,4-Bis(2-hydroxyethyl)-2-methyl-piperazin
• 英文别名: 2,2'-(2-methyl-piperazine-1,4-diyl)-bis-ethanol；N,N'-bis(2-hydroxyethyl)-2-methyl-piperazine；2,2'-(2-Methylpiperazine-1,4-diyl)di(ethan-1-ol)；2-[4-(2-hydroxyethyl)-3-methylpiperazin-1-yl]ethanol
• CAS: 3477-43-8
• 化学式: C₉H₂₀N₂O₂
• 分子量: 188.27
• InChiKey: GGXHETMCIVYDRY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.9
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  46.9
• 氢给体数：
  2
• 氢受体数：
  4

文献信息

• Water addition to enhance phosphoric acid salt catalyst activity
  申请人：UNION CARBIDE CORPORATION

  公开号：EP0197613A2

  公开（公告）日：1986-10-15

  A method for enhancing the catalytic activity retention of a phosphorus acid salt catalyst, especially a metal acid phosphate during.the production of polyalkylene polyamines from the reaction of a feed of (i) ammonia and/or an alkyleneamine compound having at least two amino groups, such as, ethylenediamine, and (ii) an alkanolamine having at least one amino group, such as, ethanolamine. Sufficient water is utilized in the feed to enhance the catalytic activity retention of the phosphorus acid salt catalyst. When a metal acid phosphate catalyst is used, the water keeps the metal acid phosphate in the acidic state and/or returns the metal acid phosphate to the acidic state. The reaction is conducted in the gas phase, in the presence of a catalytically effective amount of phosphorus acid salt catalyst and at a temperature sufficient to form the polyalkylene polyamines. Also, when the phosphorus acid salt catalyst has sustained a decrease in the activity during the production of polyalkylene polyamine, water can be added in sufficient amount to increase the activity of the catalyst.

  一种提高磷酸盐催化剂，特别是金属酸式磷酸酯的催化活性保持率的方法，该催化剂在生产聚亚烷基多胺的过程中，由(i)氨和/或具有至少两个氨基的亚烷基胺化合物，如乙二胺，和(ii)具有至少一个氨基的烷醇胺，如乙醇胺的进料反应生成。在进料中加入足够的水，以提高磷酸盐催化剂的催化活性保持力。当使用金属酸磷酸盐催化剂时，水可使金属酸磷酸盐保持酸性状态和/或使金属酸磷酸盐返回酸性状态。在气相中，在催化有效量的磷酸盐催化剂存在下，在足以形成聚亚烷基多胺的温度下进行反应。此外，在生产聚亚烷基多胺的过程中，如果磷酸盐催化剂的活性持续下降，可以加入足量的水以提高催化剂的活性。
• Curable compositions
  申请人：——

  公开号：US20020128421A1

  公开（公告）日：2002-09-12

  A resin system including a water curable isocyanate functionalized prepolymer, a first catalyst chemically bound-in to the prepolymer, and a second catalyst soluble in water and insoluble in the prepolymer.
• US4092316A
  申请人：——

  公开号：US4092316A

  公开（公告）日：1978-05-30
• US4384871A
  申请人：——

  公开号：US4384871A

  公开（公告）日：1983-05-24
• US4754036A
  申请人：——

  公开号：US4754036A

  公开（公告）日：1988-06-28