dimethylphenyl[1-(4-methylphenyl)ethoxy]silane | 1379687-16-7

• 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: dimethylphenyl[1-(4-methylphenyl)ethoxy]silane
• 英文别名: dimethyl(phenyl)((1-p-tolyl)ethoxy)silane；dimethyl(phenyl)(1-(p-tolyl)ethoxy)silane
• CAS: 1379687-16-7
• 化学式: C₁₇H₂₂OSi
• 分子量: 270.447
• InChiKey: WAAKWGBVQYZXPR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.18
• 重原子数：
  19.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  9.23
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为产物：
  描述：

  二甲基苯基硅烷 、 对甲基苯乙酮 在 [(N,N-bis(2-(pentafluorophenylamin)ethyl)methylamine)Re^III(CO)(phenyl)] 作用下， 以 neat (no solvent) 为溶剂， 反应 24.0h， 以96%的产率得到dimethylphenyl[1-(4-methylphenyl)ethoxy]silane
  参考文献：
  名称：

  Re-Silane络合物为沮丧的刘易斯对，用于催化氢化硅烷化。

  摘要：

  通过DFT（B3PW91-D3）计算了M（C 6 F 5）3（M = B，Al和Ga）对羰基底物的催化氢化硅烷化的途径，结果表明，在Al试剂的情况下，羰基底物不可逆地结合，并通过生成稳定的羰基加合物来抑制催化作用。相反，B（C 6 F 5）3的降低的亲电性不利于羰基底物的结合，并增加了活化的硅烷加合物的浓度，后者是引起催化转化的物质。发现阳离子和中性Re（III）的物种。此外，通过调节the催化剂的亲电性表明，发现了能够使酮和腈底物催化氢化硅烷化的条件，这些酮和腈底物在先前报道的系统中没有反应性。因此，这项工作中提出的机理为新催化体系的设计奠定了基础。

  DOI：

  10.1039/d0dt02084b

文献信息

• Photocatalyzed cross-dehydrogenative coupling of silanes with alcohols and water
  作者：Haiping Lv、Ronibala Devi Laishram、Jingchao Chen、Ruhima Khan、Yuanbin Zhu、Shiyuan Wu、Jianqiang Zhang、Xingyuan Liu、Baomin Fan

  DOI：10.1039/d1cc00129a

  日期：——

  An efficient method for the dehydrogenative coupling of silanes with alcohols under photocatalysis was developed. The reaction proceeded in the presence of Ru(bpy)3Cl2 (0.5 mol%) under visible light irradiation in acetonitrile at room temperature. The developed methodology was also applicable for the synthesis of silanols using water as a coupling partner.

  开发了一种在光催化下硅烷与醇脱氢偶联的有效方法。反应在室温下在乙腈中在可见光照射下，在Ru（bpy）3 Cl 2（0.5mol％）的存在下进行。所开发的方法学也适用于以水为偶联剂的硅烷醇的合成。
• Base-Free Dehydrogenative Coupling of Enolizable Carbonyl Compounds with Silanes
  作者：C. David F. Königs、Hendrik F. T. Klare、Yasuhiro Ohki、Kazuyuki Tatsumi、Martin Oestreich

  DOI：10.1021/ol301089r

  日期：2012.6.1

  A dehydrogenative coupling between enolizable carbonyl compounds and equimolar amounts of triorganosilanes catalyzed by a tethered ruthenium complex with a Ru-S bond is reported. The complex Is assumed to fulfill a dual role by activating the Si-H bond to release a silicon electrophile and by abstracting an a-proton from the intermediate silylcarboxonium ion, only liberating dihydrogen as the sole byproduct. Reaction rates are exceedingly high at room temperature with very low loadings of the ruthenium catalyst.
• Study of CoCu Alloy Nanoparticles Supported on MOF-Derived Carbon for Hydrosilylation of Ketones
  作者：David B. Christensen、Rasmus L. Mortensen、Søren Kramer、Søren Kegnæs

  DOI：10.1007/s10562-019-03065-2

  日期：2020.6

  Carbonized zeolitic imidazolate frameworks (ZIFs) show potential as mesoporous heterogeneous catalysts with high metal loadings. ZIF-67 and ZIF-8 were used to create mono- and bimetallic CoCu particles supported on nitrogen-doped carbon via self-assembly in methanol at room temperature, followed by carbonization at 675 degrees C. A Cu precursor, Cu(NO3)(2)center dot 2H(2)O, was impregnated into the ZIF-67 before carbonization to obtain bimetallic catalysts. Nanoalloy particles with different CoCu ratio were synthesized and characterized using XRD. The materials were further characterized using TEM, SEM, XRF and nitrogen physisorption. The different alloys were tested in conversion of cyclohexanone to the corresponding silyl ether. Complete conversion of cyclohexanone at 90 degrees C for 24 h were obtained. The catalyst Co99Cu1@NC gave a 60% increase in yield over a pure Co analogue. Graphic