(E)-dimethyl(2-phenylethenyl)silanol | 119873-74-4

• 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: (E)-dimethyl(2-phenylethenyl)silanol
• 英文别名: hydroxy-dimethyl-[(E)-2-phenylethenyl]silane
• CAS: 119873-74-4
• 化学式: C₁₀H₁₄OSi
• 分子量: 178.306
• InChiKey: XKUPZGLKDPWUSG-CMDGGOBGSA-N

物化性质

• 沸点：
  269.2±19.0 °C(Predicted)
• 密度：
  0.989±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.44
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-dimethyl(2-phenylethenyl)silanol 在 三氟甲苯 、 silver(l) oxide 作用下， 以 四氢呋喃 为溶剂， 反应 90.0h， 生成 (E)-1-methyl-2-styryl-benzene
  参考文献：
  名称：

  Mechanistic Significance of the Si–O–Pd Bond in the Palladium-Catalyzed Cross-Coupling Reactions of Alkenylsilanolates

  摘要：

  Through the combination of reaction kinetics (both catalytic and stoichiometric) and solid-state characterization of arylpalladium(II) alkenylsilanolate complexes, the intermediacy of covalent adducts containing Si-O-Pd linkages in the cross-coupling reactions of organosilanolates has been unambiguously established. Two mechanistically distinct pathways have been demonstrated: (1), transmetalation via a neutral 8-Si-4 intermediate that dominates in the cross-coupling of potassium allenylsilanolates, and (2) transmetalation via an anionic 10-Si-5 intermediate that dominates in the cross-coupling of cesium alkenylsilanolates. Arylpalladium(II) alkenylsilanolate complexes bearing various phosphine ligands (both bidentate and monodentate) have been isolated, frilly characterized, and evaluated for their kinetic, competence under thermal (stoichiometric) and anionic (catalytic) conditions. Comparison of the rates for thermal and anionic activation demonstrates that intermediates containing the Si-O-Pd linkage are involved in the cross-coupling process.

  DOI：

  10.1021/jacs.5b02515
• 作为产物：
  描述：

  (E)-2-phenylethenyllithium 在 silver nitrate 、 silver(l) oxide 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 9.0h， 生成 (E)-dimethyl(2-phenylethenyl)silanol
  参考文献：
  名称：

  环氧化物的对映选择性合成：烯基硅烷醇的无尖锐环氧化

  摘要：

  烯基硅烷醇（6）的无尖锐的环氧化，然后进行原去甲硅烷基化，得到对映体过量很高的氧化苯乙烯。

  DOI：

  10.1039/c39880001280

文献信息

• A novel CC bond forming reaction of aryl-and alkenylsilanols. A halogen-free Mizoroki-Heck type reaction
  作者：Kazunori Hirabayashi、Yasushi Nishihara、Atsunori Mori、Tamejiro Hiyama

  DOI：10.1016/s0040-4039(98)01750-x

  日期：1998.10

  When dimethyl(phenyl)silanol is subjected to on electron-deficient olefin in the presence of a stoichiometric amount of Pd(OAc)2, substitution of the CH bond of the olefin by a phenyl group on the silanol occurs in 52–86% yields. The reactions of several aryl- and alkenylsilanols with several olefins are also found to proceed in the system of 10 mol% of Pd(OAc)2, Cu(OAc)2 (3 mol), LiOAc (2 mol) to

  当在化学计算量的Pd（OAc）2存在下，二甲基（苯基）硅烷醇在缺电子的烯烃上受到作用，在52–86中，硅烷醇上的苯基取代了烯烃的CH键％产率。还发现几种芳基和链烯基硅烷醇与几种烯烃的反应在10 mol％的Pd（OAc）2，Cu（OAc）2（3 mol），LiOAc（2 mol）的体系中进行以得到相应的产物最高可达69％的产量。
• Novel Carbon-Carbon Bond Formation through Mizoroki-Heck Type Reaction of Silanols and Organotin Compounds
  作者：Kazunori Hirabayashi、Jun-ichi Ando、Jun Kawashima、Yasushi Nishihara、Atsunori Mori、Tamejiro Hiyama

  DOI：10.1246/bcsj.73.1409

  日期：2000.6

  The reaction of dimethyl(phenyl)silanol with butyl acrylate in the presence of a stoichiometric amount of Pd(OAc)2 or by a combined use of 0.1 molar amount of Pd(OAc)2 and Cu(OAc)2/LiOAc (molar ratio 3/2) gave butyl cinnamate in 76% or 57% yield, respectively. The similar reaction with tributyl(phenyl)tin also proceeded in 77% yield. The organotin compound was shown to react faster than the silanol

  二甲基（苯基）硅烷醇与丙烯酸丁酯在化学计量的 Pd(OAc)2 存在下或通过组合使用 0.1 摩尔 Pd(OAc)2 和 Cu(OAc)2/LiOAc（摩尔比）的反应3/2) 分别以 76% 或 57% 的产率得到肉桂酸丁酯。与三丁基（苯基）锡的类似反应也以 77% 的产率进行。有机锡化合物比硅烷醇反应更快，尽管锡试剂有时会引起不希望的均偶联，而与硅烷醇的反应不会产生这种副产物。
• Stereospecific Palladium-Catalyzed Cross-Coupling of (<i>E</i>)- and (<i>Z</i>)-Alkenylsilanolates with Aryl Chlorides
  作者：Scott E. Denmark、Jeffrey M. Kallemeyn

  DOI：10.1021/ja065988x

  日期：2006.12.1

  geometrically defined (E)- and (Z)-alkenyl- and styrylsilanolates with a wide variety of aromatic and heteroaromatic chlorides has been achieved. Under catalysis by bulky, biphenyl-derived phosphines and allylpalladium chloride, the (preformed, stable) potassium salts of di-, tri- and tetrasubstituted alkenyldimethylsilanols undergo high yielding and highly stereospecific coupling to aryl chlorides in THF or dioxane

  已经实现了几何定义的 (E)-和 (Z)-烯基-和苯乙烯基硅烷醇化物与多种芳族和杂芳族氯化物的交叉偶联。在庞大的联苯衍生的膦和烯丙基氯化钯的催化下，二、三和四取代的烯基二甲基硅烷醇的（预先形成的、稳定的）钾盐在 THF 或二恶烷中与芳基氯化物发生高产率和高度立体有择的偶联。多种官能团与这些反应条件相容，包括硝基、酯、酮和腈。(E)- 和 (Z)- 链烯基硅烷醇化物都具有几乎相同的速率和效率。
• Palladium-Catalyzed Cross-Coupling of Silanols, Silanediols, and Silanetriols Promoted by Silver(I) Oxide
  作者：Kazunori Hirabayashi、Atsunori Mori、Jun Kawashima、Masahiro Suguro、Yasushi Nishihara、Tamejiro Hiyama

  DOI：10.1021/jo000679p

  日期：2000.8.1

  Palladium-catalyzed cross-coupling of aryl- or alkenylsilanols, silanediols, and silanetriols with a variety of iodoarenes by the catalysis of palladium(0) and in the presence of silver(I) oxide furnished the coupling products in good to excellent yields. The reactions of silanediols or silanetriols under similar conditions proceeded much faster than those of silanols to afford the corresponding coupling

  通过钯（0）的催化并在氧化银（I）的存在下，钯催化的芳基或链烯基硅烷醇，硅烷二醇和硅烷三醇与各种碘代芳烃的交叉偶联为偶联产物提供了良好或优异的收率。硅烷二醇或硅烷三醇在相似条件下的反应比硅烷醇的反应进行得快得多，从而可以在较短的反应时间内（5-12小时）以优异的产率提供相应的偶联产物。反应后银残余物的X射线衍射（XRD）图谱的测量表明，氧化银（I）被转化为碘化银（I）。
• Highly Selective Oxidation of Organosilanes to Silanols with Hydrogen Peroxide Catalyzed by a Lacunary Polyoxotungstate
  作者：Ryo Ishimoto、Keigo Kamata、Noritaka Mizuno

  DOI：10.1002/anie.200904694

  日期：2009.11.9

  Silanol synthesis: Divacant lacunary polyoxotungstate (nBu4N+)4[γ‐SiW10O34(H2O)2] (I) is an efficient homogeneous catalyst for highly selective oxidation of organosilanes to silanols with 30–60 % aqueous H2O2. Various kinds of silanes 1 containing aryl, alkyl, alkenyl, alkynyl, and alkoxy groups are chemoselectively converted into the corresponding silanols 2 in high yields with only one equivalent

  硅烷醇合成：Divacant缺位polyoxotungstate（Ñ卜4 Ñ +）4 [γ-硅钨酸10 ø 34（H 2 O）2 ]（我）是一种有效的均相催化剂用于向硅烷醇的有机硅烷的高度选择性氧化用30-60％含水H 2 O 2。含有芳基，烷基，烯基，炔基和烷氧基的各种硅烷1仅以一当量的H 2 O 2水溶液就可以高选择性地化学选择性转化为相应的硅烷醇2。 相对于基板。