zinc ethylethoxide | 13173-80-3

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: zinc ethylethoxide
• 英文别名: Aethoxy-aethyl-zink；Ethylzink-ethoxid；ZnEt(OEt)
• CAS: 13173-80-3
• 化学式: C₄H₁₀OZn
• 分子量: 139.513
• InChiKey: AZKVIYDOWPFGAQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.46
• 重原子数：
  6.0
• 可旋转键数：
  3.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  9.23
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  2,4-di(tert-butyl)-6-[bis[(3,5-dimethyl-1-pyrazole)ethylamino]aminomethyl]phenol 、 zinc ethylethoxide 以 甲苯 为溶剂， 以17%的产率得到ZnEt(2,4-di(tert-butyl)-6-[bis[(3,5-dimethyl-1-pyrazole)ethylamino]aminomethyl]phenol)
  参考文献：
  名称：

  Zinc and enolato-magnesium complexes based on bi-, tri- and tetradentate aminophenolate ligands

  摘要：

  一系列潜在的四齿、三齿和二齿氨基酚前配体([L1]H–[L5]H)与镁和锌衍生物的配位化学已被研究。前配体[L1]H、[L2]H和[L3]H与等量的ZnEt2或Zn(N(SiMe3)2)2在室温下在甲苯中反应，通过乙烷或胺消除，干净地得到乙基和酰胺基锌配合物1–4。从三齿前配体[L4]H衍生的配合物[L4]ZnEt(5)和[L4]Zn(N(SiMe3)2)2(6)分别通过类似的烷烃和胺消除协议，以84%和76%的产率制备。二齿前配体[L5]H与ZnEt2或Zn(N(SiMe3)2)2在甲苯中的1:1反应，采用不同的反应协议，系统地生成了双(配体)配合物[L5]2Zn(7)和相应的乙基-{[L5]ZnEt}n(8; n = 1或2)或酰胺- {[L5]Zn(N(SiMe3)2)}n配合物(9; n = 1或2)的混合物。镁醇盐配合物10和11的合成采用了一锅法两步程序，首先将前配体[L1]H和[L4]H与等量的Mg(n,sBu)2反应生成相应的{[Ln]Mg(n,sBu)}n物种，然后进一步与等量的2,4,6-Me3C6H2COMe反应。所有配合物均通过多核NMR、元素分析以及五配位镁配合物10和四配位锌配合物3–6的单晶X射线衍射研究进行了表征。初步研究表明，镁物种10和11以及锌配合物1和5即使与等量的Li[OC(CH2)(2,4,6-Me3C6H2)]结合，也不是甲基丙烯酸甲酯聚合的有效引发剂，而锌配合物2, 4和6在20°C下对于ε-己内酯和rac-乳酸的环开聚合是有效的引发剂。

  DOI：

  10.1039/b812754a
• 作为产物：
  描述：

  乙醇 、 diethylzinc 以 甲苯 为溶剂， 生成 zinc ethylethoxide
  参考文献：
  名称：

  Zinc and enolato-magnesium complexes based on bi-, tri- and tetradentate aminophenolate ligands

  摘要：

  一系列潜在的四齿、三齿和二齿氨基酚前配体([L1]H–[L5]H)与镁和锌衍生物的配位化学已被研究。前配体[L1]H、[L2]H和[L3]H与等量的ZnEt2或Zn(N(SiMe3)2)2在室温下在甲苯中反应，通过乙烷或胺消除，干净地得到乙基和酰胺基锌配合物1–4。从三齿前配体[L4]H衍生的配合物[L4]ZnEt(5)和[L4]Zn(N(SiMe3)2)2(6)分别通过类似的烷烃和胺消除协议，以84%和76%的产率制备。二齿前配体[L5]H与ZnEt2或Zn(N(SiMe3)2)2在甲苯中的1:1反应，采用不同的反应协议，系统地生成了双(配体)配合物[L5]2Zn(7)和相应的乙基-{[L5]ZnEt}n(8; n = 1或2)或酰胺- {[L5]Zn(N(SiMe3)2)}n配合物(9; n = 1或2)的混合物。镁醇盐配合物10和11的合成采用了一锅法两步程序，首先将前配体[L1]H和[L4]H与等量的Mg(n,sBu)2反应生成相应的{[Ln]Mg(n,sBu)}n物种，然后进一步与等量的2,4,6-Me3C6H2COMe反应。所有配合物均通过多核NMR、元素分析以及五配位镁配合物10和四配位锌配合物3–6的单晶X射线衍射研究进行了表征。初步研究表明，镁物种10和11以及锌配合物1和5即使与等量的Li[OC(CH2)(2,4,6-Me3C6H2)]结合，也不是甲基丙烯酸甲酯聚合的有效引发剂，而锌配合物2, 4和6在20°C下对于ε-己内酯和rac-乳酸的环开聚合是有效的引发剂。

  DOI：

  10.1039/b812754a
• 作为试剂：
  描述：

  diethylzinc 、 苯甲醛 在 (1S,2R)-N,N-pentamethylenenorephedrine chromium tricarbonyl 、 zinc ethylethoxide 作用下， 以 正己烷 为溶剂， 反应 12.0h， 以99%的产率得到S(-)-1-苯基-1-丙醇
  参考文献：
  名称：

  Chiral arene chromium tricarbonyl complexes as enantioselective catalysts: highly selective 1,2 alkyl additions to aldehydes

  摘要：

  The preparation of a rationally designed catalyst system derived from norephedrine is reported. The key stereodirective element emanates from a chromium tricarbonyl group complexed to one face of the aryl ring. The catalysts mediate the addition of diethyl zinc to a variety of aldehydes with extremely high enantioselectivity.

  DOI：

  10.1016/s0040-4039(00)91708-8

文献信息

• Aluminum and Zinc Complexes Based on an Amino-Bis(pyrazolyl) Ligand:  Synthesis, Structures, and Use in MMA and Lactide Polymerization
  作者：Bing Lian、Christophe M. Thomas、Osvaldo L. Casagrande、Christian W. Lehmann、Thierry Roisnel、Jean-François Carpentier

  DOI：10.1021/ic061749z

  日期：2007.1.1

  The coordination chemistry of bis[2-(3,5-dimethyl-1-pyrazolyl)ethyl]amine (1, LH) with aluminum- and zinc-alkyls has been studied. Reaction of 1 with AlR3 affords the adducts [LH]center dot AlR3 (R = Me, 2; Et, 3), which undergo alkane elimination upon heating to yield the amido complexes [L]AlR2 (R = Me, 4; Et, 5). Reaction of LiO(iPrO)CCMe2 with 2 proceeds via N-H deprotonation to give Li[L]AlMe3 (6), while the former enolate adds to 4 to generate [Me2CC(OiPr)OLi]center dot[L]AlMe2 (7). Similarly, the 1:1 reaction of ZnEt2 with 1 gives [LH]center dot ZnEt2 (9), which is transformed into [L]ZnEt (10) upon heating. When an excess of ZnEt2 was used in the latter reaction, the bimetallic complex [L]ZnEt center dot ZnEt2 (11) was isolated beside 10. Performing the same reaction in the presence of O-2 traces yielded selectively the dinuclear ethyl-ethoxide complex [L]Zn2Et2(mu-OEt) (12), which was alternatively prepared from the reaction of 10 and ZnEt(OEt). Zinc chloride complexes [LH]center dot ZnRCl (R = Et, 13; p-CH3C6H4CH2, 14) and [L]ZnCl (15) were prepared in high yields following similar strategies. Ethyl abstraction from 10 with B(C6F5)(3) yields [L]Zn+EtB(C6F5)(3)(-) (16). All complexes have been characterized by multinuclear nuclear magnetic resonance (NMR), elemental analysis, and single-crystal X-ray diffraction studies for four-coordinate Al complexes 2, 4, and 6 and Zn complexes 9-12 and 14. Aluminate species 6 and 7 initiate the polymerization of methyl methacrylate, and the monomer conversions are improved in the presence of neutral complexes 2 or 4, respectively; however, these methyl methacrylate (MMA) polymerizations are uncontrolled. Polymerization of rac-lactide takes place at 20 degrees C in the presence of zinc ethoxide complex 12 to yield atactic polymers with controlled molecular masses and relatively narrow polydispersities.