[LaNa(THF)2(N,N'-bis(3,5-di-tert-butylsalicylidene)-1,3-propanediamine(-2H))2] | 1313023-17-4

• 英文名称: [LaNa(THF)2(N,N'-bis(3,5-di-tert-butylsalicylidene)-1,3-propanediamine(-2H))2]
• CAS: 1313023-17-4
• 化学式: C₇₄H₁₁₂LaN₄NaO₆
• 分子量: 1315.62
• InChiKey: DPVPKLIPANUHGM-LNKPOGHTSA-J

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  [Na4(THF)4(N,N'-bis(3,5-di-tert-butylsalicylidene)-1,3-propanediamine(-2H))2] 、 氯化镧 以 四氢呋喃 、 甲苯 为溶剂， 以0%的产率得到[LaNa(THF)2(N,N'-bis(3,5-di-tert-butylsalicylidene)-1,3-propanediamine(-2H))2]
  参考文献：
  名称：

  Synthesis, characterization and catalytic activity of Salen–(sodium)2 and (Salen)2–lanthanum–sodium complexes

  摘要：

  Salen-Na-2(1) and (Salen)(2)-La-Na(2) complexes have been prepared and structurally characterized [Sale-n = N, N'-bis (3,5-di-tert-butylsalicylidene)-1,3-propanediamine]. Experimental results show that the two complexes are efficient catalysts for the ring-opening polymerization (ROP) of L-lactide. According to the data of H-1 NMR and electrospray-ionization (+ESI) mass spectrum, it is suggested that the obtained polymer is mainly cyclic polylactide (PLA) for a short PLA chain, but a mixture of cyclic and linear PLA for a long PLA chain. Structure-activity analysis of the two complexes is also done. We investigated why Salen-Na-2 complex is more active (Salen)(2)-La-Na complex as the catalyst in the ROP of L-lactide and why the PLA catalyzed by complex 2 has lower PDIs than that catalyzed by complex 1. (C) 2011 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.ica.2011.04.025