lithium 2,6-bis(pentafluorophenyl)phenoxide | 1384116-66-8

• 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: lithium 2,6-bis(pentafluorophenyl)phenoxide
• CAS: 1384116-66-8
• 化学式: C₁₈H₃F₁₀O*Li
• 分子量: 432.146
• InChiKey: GLNTXFGOUCGVHF-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  2.49
• 重原子数：
  30.0
• 可旋转键数：
  2.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  23.06
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  Mo(N-2,6-i-Pr2C6H3)(CHCMe2Ph)(OTf)2(DME) 、 lithium 2,6-bis(pentafluorophenyl)phenoxide 以 甲苯 为溶剂， 生成 Mo(N-2,6-i-Pr₂C₆H₃)(CHCMe₂Ph)(2,6-bis(pentafluorophenyl)phenoxide)₂
  参考文献：
  名称：

  Synthesis and ROMP Chemistry of Decafluoroterphenoxide Molybdenum Imido Alkylidene and Ethylene Complexes

  摘要：

  The bisDFTO alkylidene complexes of molybdenum Mo(NR)(CHCMe2Ph)(DFTO)(2) (R = 2,6-i-Pr2C6H3, 2,6-Me2C6H3, C6F5, 1-adamantyl; DFTO = 2,6-(C6F5)(2)C6H3O) and monoarylcodde monopyrrolide (MAP) complexes Mo(NR)(CHCMe2Ph)(Me(2)Pyr)-(OAr) (Me(2)Pyr = 2,S-dimethylpyrrolide; R = C6F3, OAr = DFTO, 2,6dimesitylphenoxide (HMTO); R = 2,6-Me2C6H3, OAr = DFTO) have been prepared in good yields. Addition of dicarbomethoxynorbornadiene (DCMNBD) to bisDFTO complexes yielded polymers that have a cis,isotactic structure. Polymerization of DCMNBD by Mo(NC6F5)-(CHCMeiPh)(Me(2)Pyr)(HMTO) gives a polymer that contains the expected cis,syndiotactic structure, but polymerization of DCMNBD by Mo(NR)(CHCMe2Ph)(Me(2)Pyr)(DFTO) (R = C6F5, 2,6-Me2C6H3) generates a polymer that has a cis,isotactic structure, the first observation of a cis,isotactic polymer prepared employing a MAP initiator. Norbornene is polymerized to give what is proposed to be highly tactic cis-polyNBE. Addition of ethylene to Mo(NC6F5)(CHCMe2Ph)(DFTO)(2) leads to formation of Mo(NC6F5)(CH2CH2)-(DFTO)(2), which also behaves as an initiator for polymerization of DCMNBD to cis,isotactic-polyDCMNBD and norbornene to cis highly tactic polyNBE. Mo(NC6F5)(CH2CH2)(DFT0)2 reacts with 3-methyl-3-phenylc-yclopropene (MPCP) to give Mo(NC6F5)(CHCHCMePh)(DFTO)(2) in similar to 50% yield.

  DOI：

  10.1021/om400199u

文献信息

• [EN] METATHESIS CATALYSTS AND METHODS THEREOF<br/>[FR] CATALYSEURS DE MÉTATHÈSE ET PROCÉDÉS CORRESPONDANTS
  申请人：MASSACHUSETTS INST TECHNOLOGY

  公开号：WO2014169014A1

  公开（公告）日：2014-10-16

  The present application provides, among other things, novel compounds for metathesis reactions, and methods for preparing and using provided compounds. In some embodiments, the present invention provides compounds having the structure of formula I or II.

  本申请提供了用于交换反应的新化合物，以及制备和使用所提供化合物的方法。在某些实施方式中，本发明提供具有I或II式结构的化合物。
• Tungsten Oxo Alkylidene Complexes as Initiators for the Stereoregular Polymerization of 2,3-Dicarbomethoxynorbornadiene
  作者：William P. Forrest、Jonathan C. Axtell、Richard R. Schrock

  DOI：10.1021/om5002364

  日期：2014.5.12

  We have employed 2,3-dicarbomethoxynorbornadiene (DCMNBD) as a monomer to explore new tungsten oxo alkylidene complexes as initiators for stereoregular ROMP (ring-opening metathesis polymerization). The initiators include MAP (monoaryloxide pyrrolide) oxo alkylidene complexes with the general formula W(O)(CHCMe2Ph)(Me2Pyr)(OAr) (Me2Pyr = 2,5-dimethylpyrrolide, OAr = an aryloxide) and W(O)(CHCMe2Ph)(OR)2

  我们已使用2,3-二苯甲氧基降冰片二烯（DCMNBD）作为单体来探索新的钨氧代亚烷基络合物作为立体有规ROMP（开环易位聚合）的引发剂。引发剂包括具有通式W（O）（CHCMe 2 Ph）（Me 2 Pyr）（OAr）（Me 2 Pyr = 2,5-二甲基吡咯化物，OAr =芳基氧化物）和W的MAP（单芳氧基吡咯化物）氧代亚烷基络合物（O）（CHCMe 2 Ph）（OR）2（OR =芳氧基或OC（CF 3）3），或其PPh 2 Me或CH 3 CN加合物。我们发现MAP引发剂产生顺式，间同式-poly（DCMNBD）作为立体金属控制的结果。相反，W（O）（CHCMe 2 Ph）（OR）2（L）引发剂（其中L = PPh 2 Me或乙腈）强烈倾向于形成顺式，等规结构，而W（O）（CHCMe 2 Ph （OR）2引发剂强烈倾向于形成顺式，间同结构。向W（O）（CHCMe 2 Ph）（Me 2 Pyr）（OR）物种中添加B（C
• Synthetic and Structural Peculiarities of Neutral and Cationic Molybdenum Imido and Tungsten Oxo Alkylidene Complexes Bearing Weakly Coordinating N‐Heterocyclic Carbenes
  作者：Michael R. Buchmeiser、Dongren Wang、Roman Schowner、Laura Stöhr、Felix Ziegler、Suman Sen、Wolfgang Frey

  DOI：10.1002/ejic.202400082

  日期：2024.7

  The syntheses of neutral and cationic molybdenum imido alkylidene N-heterocyclic carbene (NHC) complexes as well as of tungsten oxo alkylidene NHC complexes bearing electron-deficient NHCs together with structural peculiarities are reported. Benchmark olefin metathesis reactions revealed that the cationic molybdenum imido alkylidene complexes bearing weakly coordinating NHCs still display appreciable

  报道了中性和阳离子钼亚氨基亚烷基 N-杂环卡宾 (NHC) 配合物以及带有缺电子 NHC 的钨氧代亚烷基 NHC 配合物的合成以及结构特性。基准烯烃复分解反应表明，带有弱配位 NHC 的阳离子钼亚氨基亚烷基配合物仍然表现出明显的催化活性。