| 1344734-42-4

• CAS: 1344734-42-4
• 化学式: C₃₄H₅₃AlN₂O₂
• 分子量: 548.789
• InChiKey: UHKXQMWXKMBMSE-OVIKLPGISA-L

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：

  2,4-di-tert-butyl-6-(((2-(methylamino)phenyl)imino)methyl)phenol 在 三乙胺 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 5.0h， 生成
  参考文献：
  名称：

  Zirconium vs Aluminum Salalen Initiators for the Production of Biopolymers

  摘要：

  Herein we report the synthesis and full characterization (NMR and solid-state structures) for a series of Zr(IV), Hf(IV), and Al(III) salalen complexes, together with salen bimetallic counterparts. With the salalen ligand, 1H(2), monometallic complexes were observed in solution and solid state. Complex Zr(1)((OPr)-Pr-i)(2) was able to produce isotactic polylactide (PLA) from rac-lactide (P-m up to 0.85) in solution at 50 degrees C; in the melt (130 degrees C) this reduced to ca. 0.75. Al(1)Me was significantly less active and produced PLA with only a very modest isotactic enchainment (P-m approximate to 0.6). Zr(1)((OPr)-Pr-i)(2) was also able to produce copolymers with lactide and e-caprolactone, producing copolymers of a "blocky" nature.

  DOI：

  10.1021/acs.organomet.6b00718

文献信息

• Selective Synthesis of Cyclic Carbonate by Salalen-Aluminum Complexes and Mechanistic Studies
  作者：Mariachiara Cozzolino、Tomer Rosen、Israel Goldberg、Mina Mazzeo、Marina Lamberti

  DOI：10.1002/cssc.201601479

  日期：2017.3.22

  the reactions of CO2 with different epoxides. The reaction of cyclohexene oxide and CO2 was thoroughly investigated. In particular, the effect of the reaction conditions (nature and equivalents of the co‐catalyst, CO2 pressure, and temperature) and of the ligands (substituents on the ancillary ligand, nature of the labile ligand, and nature of the nitrogen‐donor atoms) on the results of this reaction

  合成了Salalen-铝络合物，并将其用作CO 2与不同环氧化物的反应的催化剂。彻底研究了环己烯氧化物与CO 2的反应。特别是反应条件（助催化剂的性质和当量，CO 2压力和温度）和配体（辅助配体上的取代基，不稳定配体的性质以及氮供体的性质）的影响对这个反应的结果进行了研究。CO 2的环加成反应实现了带有不同官能团的末端环氧化物。此外，NMR机理研究提供了有关催化循环的信息。有趣的是，在一种由Salalen-Al络合物催化的环己烯氧化物与CO 2的反应机理中，对中间物种进行了表征。
• Salalen aluminium complexes and their exploitation for the ring opening polymerisation of rac-lactide
  作者：Emma L. Whitelaw、Gaynor Loraine、Mary F. Mahon、Matthew D. Jones

  DOI：10.1039/c1dt11438g

  日期：——

  In this paper we report the first use of Al(III) salalen complexes for the ring opening polymerisation of rac-lactide. Polylactides with narrow polydispersities (PDIs range from 1.04–1.65) and moderate degrees of stereoselectivity were formed. Eight salalen Al(III) complexes have been prepared and fully characterised by solution-state NMR spectroscopy and, where appropriate, single crystal X-ray diffraction. With ligand 3H2 either a monomeric or dimeric Al(III) species was formed, the dimeric species was favoured at low concentrations. The complexes were tested for the ring opening polymerisation of rac-lactide in toluene at 80 or 100 °C. Interestingly, various tacticities of polymer were formed, which were dependent upon the nature of the group bound to the amine nitrogen centre.

  在本文中，我们首次报道了使用 Al(III) salalen 复合物进行 rac-lactide 开环聚合的情况。该聚合反应生成了具有较窄聚分散度（PDI 在 1.04-1.65 之间）和中等立体选择性的聚内酯。通过溶液态核磁共振光谱和适当的单晶 X 射线衍射，制备了八种柳氮铝(III)配合物，并对其进行了全面的表征。配体 3H2 可形成单体或二聚体 Al(III) 物种，低浓度时更倾向于二聚体物种。复合物在 80 或 100 °C的甲苯中进行了 rac-内酰胺开环聚合试验。有趣的是，根据与胺氮中心结合的基团性质的不同，形成了各种不同性质的聚合物。