| 1189057-14-4

• CAS: 1189057-14-4
• 化学式: C₃₂H₄₈N₄O₈Zn₂
• 分子量: 747.535
• InChiKey: UYSIGXIZQZMVDF-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  11,23-Dimethoxy-5,5,17,17-tetramethyl-3,7,15,19-tetrazatricyclo[19.3.1.19,13]hexacosa-1(24),9,11,13(26),21(25),22-hexaene-25,26-diol 、 zinc diacetate 以 四氢呋喃 为溶剂， 以75%的产率得到
  参考文献：
  名称：

  Di- and Tri-Zinc Catalysts for the Low-Pressure Copolymerization of CO₂ and Cyclohexene Oxide

  摘要：

  The syntheses and characterization of three new macrocyclic proligands, with variation of the para aryl ring substituent, are reported. Dizinc and trizinc acetate complexes are prepared using these ligands and are characterized using infrared and nuclear magnetic resonance spectroscopies, mass spectrometry, elemental analysis, and, for the three trizinc complexes, single-crystal X-ray diffraction. The X-ray crystallographic and spectroscopic data indicate bridging and terminal acetate coordination modes, both in the solid state and in solution, for the trizinc complexes. All of the complexes show good turnover numbers and frequencies, under 1 atm of pressure of carbon dioxide, for the copolymerization of CO2 and cyclohexene oxide to produce poly(cyclohexene carbonate), The electronic nature of the ancillary ligands' substituents influences the catalytic activity of the complex, with the electron-donating substituent reducing the activity. The dizinc catalysts show markedly higher activities than the trizinc analogues, suggesting that the coordination environment within the macrocycle is crucial to controlling the catalytic activity.

  DOI：

  10.1021/ic901109e

文献信息

• CATALYST
  申请人：IMPERIAL INNOVATIONS LIMITED

  公开号：US20160347906A1

  公开（公告）日：2016-12-01

  The present invention provides novel catalysts of formula (I), where M 1 and M 2 are different and are independently selected from Mg, Zn, Fe, Co, Al and Cr, and catalyst systems comprising these catalysts. The invention also relates to the use of the inventive catalysts and catalyst systems to catalyse the reaction between i) carbon dioxide and an epoxide, ii) an epoxide and an anhydride, or iii) a lactide and/or a lactone. The invention also relates to a method for producing a catalyst of formula (I).

  本发明提供了一种新型的催化剂，其化学式为（I），其中M1和M2是不同的，并且分别从Mg、Zn、Fe、Co、Al和Cr中独立选择，以及包含这些催化剂的催化剂系统。该发明还涉及使用创新催化剂和催化剂系统来催化i）二氧化碳和环氧化物之间的反应，ii）环氧化物和酸酐之间的反应，或iii）乳酸酯和/或内酯之间的反应。该发明还涉及一种制备化学式（I）催化剂的方法。