tetrabutylammonium hydrogen maleate | 68874-26-0

• 英文名称: tetrabutylammonium hydrogen maleate
• 英文别名: (Z)-4-hydroxy-4-oxobut-2-enoate;tetrabutylazanium
• CAS: 68874-26-0
• 化学式: C₄H₃O₄*C₁₆H₃₆N
• 分子量: 357.534
• InChiKey: CEDBOZJNBXFAIA-BTJKTKAUSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  3.38
• 重原子数：
  25
• 可旋转键数：
  13
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  77.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  四丁基氢氧化铵 、 顺丁烯二酸 以 甲醇 、 水 为溶剂， 生成 tetrabutylammonium hydrogen maleate
  参考文献：
  名称：

  1H NMR studies of solvent and substituent effects on strong intramolecular hydrogen bonds

  摘要：

  AbstractChemical shifts of H‐bonded protons in tetrabutylammonium hydrogen maleate and 14‐substituted picolinic acid N‐oxides have been measured in a number of dry solvents, of different activity, in order to distinguish between symmetrical single minimum and asymmetrical hydrogen bonds. In tetrabutylammonium hydrogen maleate the resonance was observed at 20.70 ppm and its was independent of the nature of the solvent used. The chemical shift value of picolinic acid N‐oxide varies with the solvent. These observations suggest that the hydrogen bond is symmetrical in tetrabutylammonium hydrogen maleate but that it is asymmetrical in picolinic acid N‐oxide. The chemical shifts of substituted picolinic acid N‐oxides were correlated with σp, σm and ΔpKa. The substituent and solvent effects are compared and the position of the intramolecular H‐bonded protons in picolinic acid N‐oxides are estimated and discussed.

  DOI：

  10.1002/mrc.1270150116

文献信息

• New trimerization catalysts from sterically hindered salts
  申请人：Air Products and Chemicals, Inc.

  公开号：EP1852448A2

  公开（公告）日：2007-11-07

  The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.

  本发明提供了具有立体受阻羧酸盐的三聚催化剂组合物，以及使用此类三聚催化剂组合物生产聚异氰酸酯/聚氨酯泡沫的方法。
• New trimer catalyst with improved processability and surface cure
  申请人：Air Products and Chemicals, Inc.

  公开号：EP1852449A2

  公开（公告）日：2007-11-07

  The present invention provides trimerization catalyst compositions having an α,β-unsaturated carboxylate salt and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.

  本发明提供了具有α，β-不饱和羧酸盐的三聚催化剂组合物，以及使用这种三聚催化剂组合物生产聚异氰酸酯/聚氨酯泡沫的方法。
• New trimer catalyst additives for improving foam processability
  申请人：Air Products and Chemicals, Inc.

  公开号：EP1852450A2

  公开（公告）日：2007-11-07

  The present invention provides trimerization catalyst compositions and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions. The catalyst composition is the contact product of at least one α,β-unsaturated carboxylate salt and at least one second carboxylate salt.

  本发明提供了三聚催化剂组合物和使用这种三聚催化剂组合物生产聚异氰酸酯/聚氨酯泡沫塑料的方法。催化剂组合物是至少一种α，β-不饱和羧酸盐和至少一种第二羧酸盐的接触产物。
• Tetraalkylammonium carboxylate salts as trimerization catalysts for spray foam applications
  申请人：Air Products and Chemicals, Inc.

  公开号：EP2003157A2

  公开（公告）日：2008-12-17

  The present invention provides a method to produce a polyisocyanurate/polyurethane spray foam using a trimerization catalyst composition having tetraalkylammonium salt of a sterically hindered carboxylic acid or an α,β-unsaturated carboxylic acid.

  本发明提供了一种使用三聚催化剂组合物生产聚异氰酸酯/聚氨酯喷涂泡沫的方法，该催化剂组合物具有立体受阻羧酸或α，β-不饱和羧酸的四烷基铵盐。
• Trimerization catalysts from sterically hindered salts and tertiary amines having isocyanate reactive groups
  申请人：Evonik Operations GmbH

  公开号：US10759892B2

  公开（公告）日：2020-09-01

  The present invention provides trimerization catalyst compositions having a sterically hindered carboxylate salt used in combination with a tertiary amine catalysts having isocyanate reactive groups and methods to produce a polyisocyanurate/polyurethane foam using such trimerization catalyst compositions.

  本发明提供了具有立体受阻羧酸盐的三聚催化剂组合物，该组合物与具有异氰酸酯活性基团的叔胺催化剂结合使用，并提供了使用此类三聚催化剂组合物生产聚异氰酸酯/聚氨酯泡沫的方法。