bis(hexan-2-yloxy)(phenyl)silane | 1536256-61-7

• 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: bis(hexan-2-yloxy)(phenyl)silane
• CAS: 1536256-61-7
• 化学式: C₁₈H₃₂O₂Si
• 分子量: 308.536
• InChiKey: NIAKHGMUVDEBGE-UHFFFAOYSA-N

物化性质

• 沸点：
  336.9±15.0 °C(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  21.0
• 可旋转键数：
  11.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  18.46
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  2-己酮 、 苯硅烷 在 C₃₉H₄₁MnN₃P₂ 作用下， 以 neat (no solvent) 为溶剂， 反应 0.08h， 生成 bis(hexan-2-yloxy)(phenyl)silane
  参考文献：
  名称：

  A Highly Active Manganese Precatalyst for the Hydrosilylation of Ketones and Esters

  摘要：

  The reduction of ((PDI)-P-Ph2PPr)MnCl2 allowed the preparation of the formally zerovalent complex, ((PDI)-P-Ph2PPr)Mn, which features a pentadentate bis(imino)pyridine chelate. This complex is a highly active precatalyst for the hydrosilylation of ketones, exhibiting TOFs of up to 76,800 h(-1) in the absence of solvent. Loadings as low as 0.01 mol % were employed, and ((PDI)-P-Ph2PPr)Mn was found to mediate the atom-efficient utilization of Si-H bonds to form quaternary silane products. ((PDI)-P-Ph2PPr)Mn was also shown to catalyze the dihydrosilylation of esters following cleavage of the substrate acyl C-O bond. Electronic structure investigation of ((PDI)-P-Ph2PPr)Mn revealed that this complex possesses an unpaired electron on the metal center, rendering it likely that catalysis takes place following electron transfer to the incoming carbonyl substituent.

  DOI：

  10.1021/ja4116346

文献信息

• [EN] FIRST-ROW TRANSITION METAL HYDROGENATION AND HYDROSILYLATION CATALYSTS<br/>[FR] CATALYSEURS D'HYDROGÉNATION ET D'HYDROSILYLATION À BASE DE MÉTAUX DE TRANSITION DE LA PREMIÈRE COLONNE
  申请人：UNIV ARIZONA STATE

  公开号：WO2014201082A1

  公开（公告）日：2014-12-18

  Transition metal compounds, and specifically transition metal compounds having a tetradentate and/or pentadentate supporting ligand are described, together with methods for the preparation thereof and the use of such compounds as hydrogenation and/or hydrosilylation catalysts.

  过渡金属化合物，特别是具有四齿和/或五齿支撑配体的过渡金属化合物被描述，以及其制备方法和将这些化合物用作加氢和/或加硅催化剂的用途。
• A Pentacoordinate Mn(II) Precatalyst That Exhibits Notable Aldehyde and Ketone Hydrosilylation Turnover Frequencies
  作者：Chandrani Ghosh、Tufan K. Mukhopadhyay、Marco Flores、Thomas L. Groy、Ryan J. Trovitch

  DOI：10.1021/acs.inorgchem.5b01825

  日期：2015.11.2

  found to possess an intermediate-spin (S = 3/2) Mn(II) center by the Evans method and electron paramagnetic resonance spectroscopy. Furthermore, (κ5-N,N,N,N,N-PyEtPDEA)Mn was determined to be an effective precatalyst for the hydrosilylation of aldehydes and ketones, exhibiting turnover frequencies of up to 2475 min–1 when employed under solvent-free conditions. This optimization allowed for isolation

  在吡啶取代的双（亚氨基）吡啶配体PyEt PDI存在下加热（THF）2 MnCl 2，制备相应的二卤化物配合物（PyEt PDI）MnCl 2。使用过量的Na / Hg的这种前体的还原导致螯合物甲基基团的脱质子化，得到双（烯酰胺）三（吡啶） -支持的产品，（κ 5 - Ñ，Ñ，Ñ，Ñ，ñ - PyEt PDEA）的Mn 。该配合物通过单晶X射线衍射表征，发现具有中间自旋（S = 3 /2）通过Evans方法和电子顺磁共振波谱法测定Mn（II）中心。此外，（κ 5 - Ñ，Ñ，Ñ，Ñ，ñ - PyEt PDEA）Mn为确定为醛和酮的氢化硅烷化的有效预催化剂，表现出向上的周转频率2475分钟-1时溶剂下使用免费条件。这种优化可以分离出相应的醇，在两种情况下，还可以分离出部分反应的甲硅烷基醚PhSiH（OR）2 [R = Cy和CH（Me）（n Bu）]。对于（κ观察到的醛氢化硅烷化活性5 - ñ，N，N，N，N