2-carboxy-4,5-dihydro-1,3-di-tert-butylimidazolium | 1140910-41-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-carboxy-4,5-dihydro-1,3-di-tert-butylimidazolium
• 英文别名: 1,3-Ditert-butyl-4,5-dihydroimidazol-1-ium-2-carboxylate
• CAS: 1140910-41-3
• 化学式: C₁₂H₂₂N₂O₂
• 分子量: 226.319
• InChiKey: QEUFEGQGJSFOND-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  46.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1,2-bis(t-butylamino)ethane dihydrochloride 在 甲酸 、 双(三甲基硅烷基)氨基钾 作用下， 以 四氢呋喃 为溶剂， 生成 2-carboxy-4,5-dihydro-1,3-di-tert-butylimidazolium
  参考文献：
  名称：

  咪唑啉鎓N-杂环碳配体可增强金表面的稳定性

  摘要：

  ñ杂环卡宾（NHC）由于能够形成致密的，自组装的单分子层，已成为用于贵金属表面改性的通用且坚固的配体。尽管有越来越多的研究，以前的NHC表面改性方案仅采用了两个结构基序：苯并咪唑NHC和咪唑NHC。但是，不同的NHC部分（包括饱和NHC）在均相催化化学中通常比上述这些基序更有效，并且可能赋予NHC表面许多优势，例如增加的稳定性和接近手性基团的能力。这项工作探索了使用咪唑鎓和咪唑啉鎓NHC配体制备和涂有NHC的金表面的稳定性。

  DOI：

  10.1021/acs.langmuir.1c00314

文献信息

• CATALYST FOR DISSOCIATION OF BLOCKING AGENT FOR BLOCKED ISOCYANATES, AND THERMOSETTING COMPOSITION CONTAINING SAID CATALYST FOR DISSOCIATION OF BLOCKING AGENT
  申请人：Koei Chemical Company, Limited

  公开号：EP3689931A1

  公开（公告）日：2020-08-05

  A blocking agent dissociation catalyst for blocked isocyanates comprising a nitrogen-containing compound represented by Formula (1a): wherein D is represented by Formula (2): wherein R1, R2, R3, R4, and a are as described in the specification.

  一种用于封端异氰酸酯的封端剂解离催化剂，由式（1a）代表的含氮化合物组成： 其中 D 由式（2）表示： 其中 R1、R2、R3、R4 和 a 如说明书所述。
• POLYMERIZATION USING LATENT INITIATORS
  申请人：EVONIK INDUSTRIES AG

  公开号：US20150126696A1

  公开（公告）日：2015-05-07

  The present invention relates to a novel, rapid initiation mechanism for polymerising (meth)acrylates using latent initiators based on N-heterocyclic carbene compounds which can be thermally activated, such as, in particular, N-heterocyclic carbene-CO 2 compounds, carbene-CS 2 compounds or carbene-metal compounds (NHC). Using the new initiation mechanism, molecular weights of 10 000 to over 500 000 g/mol and a narrow polydispersity can be achieved for polymerisation of MMA. The polymerisations can be carried out both without solvent and in solution.
• RING-OPENING LAUROLACTAM POLYMERIZATION WITH LATENT INITIATORS
  申请人：BURGER Yvonne

  公开号：US20160102175A1

  公开（公告）日：2016-04-14

  The present invention relates to a rapid and innovative mechanism for initiating anionic ring-opening polymerization of laurolactam by means of latent initiators on the basis of thermally activatable N-heterocyclic carbene compounds, such as, more particularly, N-heterocyclic carbene-CO 2 compounds and carbene-metal compounds (NHCs). With the new initiation mechanism it is possible accordingly to realize molecular weights (M w ) of from 2000 up to more than 30,000 g/mol, and narrow polydispersities. The polymerizations may be carried out both in bulk and in solution in a suitable solvent. Compounds of this type are thermally latent and on heating initiate a polymerization to polylaurolactam in high yields, up to a quantitative conversion, whereas at room temperature there is no reaction. Polydispersity and molecular weight of the polylaurolactam can be adjusted through the choice of the initiator and of the reaction conditions.