(2-(2-methoxyphenylimino)-4-(2,6-diisopropylphenylamido)pent-2-eneato)ZnEt | 694440-65-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (2-(2-methoxyphenylimino)-4-(2,6-diisopropylphenylamido)pent-2-eneato)ZnEt
• CAS: 694440-65-8
• 化学式: C₂₆H₃₆N₂OZn
• 分子量: 457.975
• InChiKey: VKBZNZWFLXOUAQ-RDGAZMSTSA-N

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

• 作为反应物：
  描述：

  (2-(2-methoxyphenylimino)-4-(2,6-diisopropylphenylamido)pent-2-eneato)ZnEt 、 苯甲醇 以 正己烷 为溶剂， 以40.7%的产率得到[(2-((2-methoxyphenyl)imino)-4-((2,6-diisopropylphenyl)amido)-2-pentene(-H))2Zn3(μ-OBn)4]
  参考文献：
  名称：

  Comparative study of lactide polymerization by zinc alkoxide complexes with a β-diketiminato ligand bearing different substituents

  摘要：

  A series of beta-diketiminate zinc complexes has been synthesized and their reactivity for the ring-opening polymerization (ROP) of lactide has been studied. The reaction of beta-diketimines (LH) with diethyl zinc forms the monomeric [LZnEt] complexes which further react with benzyl alcohol (BnOH) in toluene/hexane yielding dinuclear or trinuclear zinc complexes. These complexes have been characterized by single crystal X-ray diffraction, which showed the tri- and tetra-coordinated zinc complexes in which zinc atoms exhibit trigonal and tetrahedral geometry, respectively. All complexes have been tested as initiators for the ring-opening polymerization of lactide: they are all highly active. The rate of polymerization is heavily dependent on the N-aryl substituents with the order: alkyl group similar to alkoxy > halide group > nitro group. The beta-diketiminate zinc complexes allow controlled ring-opening polymerization as shown by the linear relationship between the percentage conversion and the number-average molecular weight. On the basis of literature reports, a mechanism for ROP of lactide has been proposed. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2011.02.013
• 作为产物：
  描述：

  2-((2-methoxyphenyl)imino)-4-((2,6-diisopropylphenyl)amido)-2-pentene 、 diethylzinc 以 正己烷 为溶剂， 以86%的产率得到(2-(2-methoxyphenylimino)-4-(2,6-diisopropylphenylamido)pent-2-eneato)ZnEt
  参考文献：
  名称：

  Comparative study of lactide polymerization by zinc alkoxide complexes with a β-diketiminato ligand bearing different substituents

  摘要：

  A series of beta-diketiminate zinc complexes has been synthesized and their reactivity for the ring-opening polymerization (ROP) of lactide has been studied. The reaction of beta-diketimines (LH) with diethyl zinc forms the monomeric [LZnEt] complexes which further react with benzyl alcohol (BnOH) in toluene/hexane yielding dinuclear or trinuclear zinc complexes. These complexes have been characterized by single crystal X-ray diffraction, which showed the tri- and tetra-coordinated zinc complexes in which zinc atoms exhibit trigonal and tetrahedral geometry, respectively. All complexes have been tested as initiators for the ring-opening polymerization of lactide: they are all highly active. The rate of polymerization is heavily dependent on the N-aryl substituents with the order: alkyl group similar to alkoxy > halide group > nitro group. The beta-diketiminate zinc complexes allow controlled ring-opening polymerization as shown by the linear relationship between the percentage conversion and the number-average molecular weight. On the basis of literature reports, a mechanism for ROP of lactide has been proposed. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2011.02.013

文献信息

• Magnesium and zinc complexes of a potentially tridentate β-diketiminate ligand
  作者：Andrew P. Dove、Vernon C. Gibson、Edward L. Marshall、Andrew J. P. White、David J. Williams

  DOI：10.1039/b314760f

  日期：——

  Crystallographic analysis of compounds, and reveals that the potential for (BDI-2) to bind in a tridentate manner is only realised with the more electrophilic metals Li and Mg. Compared to their (BDI-1) counterparts, complexes 6, 7 and 9 are more active, but less well-controlled, initiators for the ring-opening polymerisation of rac-lactide, a consequence of the diminished steric protection afforded

  描述了不对称取代的β-二酮亚胺，2-（2-甲氧基苯基亚氨基）-4-（2,6-二异丙基苯基氨基）戊-2-烯（BDI-2）H的合成及其与镁和锌的络合化学被探索。重点放在用于丙交酯开环聚合的醇盐和酰胺衍生物的制备上。将其作为聚合引发剂的行为与N，N'-双（2,6-二异丙基苯基）β-二酮化配体BDI-1所支持的类似化合物进行了比较。（BDI-2）H与Me2Mg反应生成双（螯合物）配合物（BDI-2）2Mg，3。BDI-2负载的镁烷基可以通过增加烷基的大小来制备。因此，（BDI-2）H的锂化得到[（BDI-2）Li] 2，4; 其随后用iPrMgCl处理会产生（BDI-2）MgiPr，5。使用iPr2NH对复合物进行氨解会生成酰胺复合物，（BDI-2）MgNiPr2，6。Zn（NTMS2）2和ZnEt2与（BDI-2）H反应，分别得到（BDI-2）Zn（NTMS2），7和（BDI-2）ZnEt，8。