1,3-dicyclohexyl-5,6-dihydro-4H-pyrimidin-1-ium-2-carboxylic acid

• 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: 1,3-dicyclohexyl-5,6-dihydro-4H-pyrimidin-1-ium-2-carboxylic acid
• 化学式: C17H29N2O2+
• 分子量: 293.4
• InChiKey: QJYXQZUCFODTIR-UHFFFAOYSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  43.6
• 氢给体数：
  1
• 氢受体数：
  2

文献信息

• A METHOD FOR PREPARING POLYESTERAMIDES BY ORGANIC CATALYSIS
  申请人：Nanjing Tech University

  公开号：EP3228651A1

  公开（公告）日：2017-10-11

  This invention discloses a method for preparing polyesteramides by organocatalysis. The polyesteramides are prepared by a ring-opening polymerization reaction of comonomer under the action of an activator and an initiator, with ε-caprolactone and ε-caprolactam taken as the comonomer, and an I type carbene carboxylate compound or an L type carbene carboxylate compound taken as catalysts. Compared with the prior art, the method for preparing polyesteramides takes carbene as the catalyst and ε-caprolactone and ε-caprolactam as the reaction monomer, therefore, the total yield can reach 91.2%-97.1%, and degradable polyesteramide copolymers with different melting points (Tm) within 50-200°C can be prepared by adjusting the ratio of raw materials in a formula. At the same time, by the tensile test performed at a room temperature of 15 °C, the humidity of 50% and the speed of 200 mm/min, the hot pressed die sheet, which is 1.00 mm thick and 6.00mm wide, and made of the polyesteramides prepared by the method, has the tensile strength between 10 MPa and 60 MPa, and the Young's modulus between 0.1 GPa and 2 GPa.

  本发明公开了一种通过有机催化制备聚酯酰胺的方法。以ε-己内酯和ε-己内酰胺为共聚单体，以 I 型碳烯羧酸化合物或 L 型碳烯羧酸化合物为催化剂，在活化剂和引发剂的作用下，通过共聚单体的开环聚合反应制备聚酯酰胺。与现有技术相比，该聚酯酰胺的制备方法以碳烯为催化剂，以ε-己内酯和ε-己内酰胺为反应单体，因此总收率可达91.2%-97.1%，并可通过调整配方中原料的比例，制备出熔点（Tm）在50-200℃之间的可降解聚酯酰胺共聚物。同时，在室温 15 ℃、湿度 50%、速度 200 mm/min 的条件下进行拉伸试验，由该方法制备的聚酯酰胺制成的厚 1.00 mm、宽 6.00 mm 的热压模片的拉伸强度在 10 MPa 至 60 MPa 之间，杨氏模量在 0.1 GPa 至 2 GPa 之间。
• 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.
• LACTONE POLYMERIZATION WITH LATENT INITIATORS
  申请人：EVONIK DEGUSSA GMBH

  公开号：US20160137774A1

  公开（公告）日：2016-05-19

  The present invention relates to a novel, rapid initiating mechanism for anionic, ring-opening polymerization of lactones by means of latent initiators based on N-heterocyclic carbene compounds which can be thermally activated, such as, in particular, N-heterocyclic carbene-CO 2 , carbene-CS 2 and carbene-metal compounds (NHC). Molecular weights of 2000 to more than 20 000 g/mol and narrow polydispersities can thus be realized using the novel initiating mechanism for the polymerization of ε-caprolactone. The polymerizations may be carried out either without solvent or in solution. Compounds of this type are thermally latent and initiate a polymerization to give polylactones on heating, sometimes in high yields up to a level of quantitative conversion, while a reaction does not occur at room temperature. The polydispersity and molecular weight of the polylactone can be adjusted by selection of the initiator and the reaction conditions.
• 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.
• METHOD FOR PREPARING PLOYESTERAMIDES BY ORGANIC CATALIYSIS
  申请人：NANJING TECH UNIVERSITY

  公开号：US20170081475A1

  公开（公告）日：2017-03-23

  A method for preparing polyesteramides by organocatalysis. The polyesteramides are prepared by a ring-opening polymerization reaction of comonomer under the action of an activator and an initiator, with ε-caprolactone and ε-caprolactam taken as the comonomer, and an I type carbene carboxylate compound or an L type carbene carboxylate compound taken as catalysts.