Diphenyl-(1,2,2-trimethyl-propoxy)-silane | 57137-73-2

• 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: Diphenyl-(1,2,2-trimethyl-propoxy)-silane
• 英文别名: 3,3-dimethylbutan-2-yloxy(diphenyl)silane
• CAS: 57137-73-2
• 化学式: C₁₈H₂₄OSi
• 分子量: 284.473
• InChiKey: IFLVHUJYLREMNZ-UHFFFAOYSA-N

物化性质

• 沸点：
  338.3±15.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.98
• 重原子数：
  20.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  Diphenyl-(1,2,2-trimethyl-propoxy)-silane 在 potassium carbonate 作用下， 以 甲醇 为溶剂， 反应 4.0h， 生成 2-丁醇,3,3-二甲基-,(2S)- 、 (2R)-3,3-二甲基丁烷-2-醇
  参考文献：
  名称：

  在开发新型高效立体选择性氢化硅烷化催化剂的过程中设计“搜索途径”。

  摘要：

  恶唑啉和N-杂环卡宾的直接偶联导致螯合C，N辅助配体用于不对称催化，该配体结合了“锚”单元和立体定向元件。使各种N-取代的咪唑与2-溴-4（S）-叔丁基-和2-溴-4（S）-异丙基恶唑啉反应，得到立体定向辅助配体的咪唑前体。通过使用该简单程序，可获得十种不同配体前体的文库（65-97％的收率）。通过与[{Rh（mu-OtBu）（nbd）} 2]（nbd =降冰片二烯）反应，在随后的步骤中将这些蛋白配体金属化，由KOtBu和[{RhCl（nbd）} 2]原位生成相应的N -杂环卡宾配合物[RhBr（nbd）（恶唑啉基-卡宾）] 4 aj收率良好。两种铑配合物4 d和4 j的X射线衍射研究，建立了扭曲的方金字塔形配位几何结构，其中溴配体占据了顶端位置。发现铑-卡宾键的长度为2.070（4）A（4 d）和2.012（3）A（4 j）。用AgBF 4在二氯甲烷中处理配合物4 aj，得到用于酮的氢化

  DOI：

  10.1002/chem.200500132
• 作为产物：
  描述：

  频哪酮 、 二苯基硅烷 在 (S)-[RhBr(nbd)(oxazolinyl-carbene)] silver tetrafluoroborate 作用下， 以 二氯甲烷 为溶剂， 反应 10.0h， 生成 Diphenyl-(1,2,2-trimethyl-propoxy)-silane
  参考文献：
  名称：

  在开发新型高效立体选择性氢化硅烷化催化剂的过程中设计“搜索途径”。

  摘要：

  恶唑啉和N-杂环卡宾的直接偶联导致螯合C，N辅助配体用于不对称催化，该配体结合了“锚”单元和立体定向元件。使各种N-取代的咪唑与2-溴-4（S）-叔丁基-和2-溴-4（S）-异丙基恶唑啉反应，得到立体定向辅助配体的咪唑前体。通过使用该简单程序，可获得十种不同配体前体的文库（65-97％的收率）。通过与[{Rh（mu-OtBu）（nbd）} 2]（nbd =降冰片二烯）反应，在随后的步骤中将这些蛋白配体金属化，由KOtBu和[{RhCl（nbd）} 2]原位生成相应的N -杂环卡宾配合物[RhBr（nbd）（恶唑啉基-卡宾）] 4 aj收率良好。两种铑配合物4 d和4 j的X射线衍射研究，建立了扭曲的方金字塔形配位几何结构，其中溴配体占据了顶端位置。发现铑-卡宾键的长度为2.070（4）A（4 d）和2.012（3）A（4 j）。用AgBF 4在二氯甲烷中处理配合物4 aj，得到用于酮的氢化

  DOI：

  10.1002/chem.200500132

文献信息

• Reduction of carbonyl compounds via hydrosilylation
  作者：Iwao Ojima、Mitsuru Nihonyanagi、Tetsuo Kogure、Miyoko Kumagai、Shuji Horiuchi、Kimiyo Nakatsugawa、Yoichiro Nagai

  DOI：10.1016/s0022-328x(00)86954-5

  日期：1975.8

  electron-withdrawing group on the α-carbon using tris(triphenylphosphine)chlororhodium as a catalyst is described. Solvolysis of these silyl ethers and silyl enol ethers afforded the corresponding reduced products. The hydrosilylation of α,β-unsaturated carbonyl compounds was found to proceed by 1,4-addition. An oxidative adduct of triethylsilane to the rhodium-(I) complex was obtained as a reaction intermediate

  使用三（三苯基膦）氯铑作为催化剂，对各种羰基化合物（例如简单的醛，简单的酮，α，β-不饱和羰基化合物，α-二酮，酰基氰化物和在α-碳上具有吸电子基团的酮）进行氢化硅烷化描述。这些甲硅烷基醚和甲硅烷基烯醇醚的溶剂分解得到相应的还原产物。发现α，β-不饱和羰基化合物的氢化硅烷化通过1，4-加成进行。获得三乙基硅烷与铑-（I）配合物的氧化加合物作为反应中间体。根据加合物的红外光谱和远红外光谱对加合物的结构进行了讨论。
• Catalytic Enantioselective Hydrosilylation of Ketones with Rhodium-Phosphite Complexes Containing a TADDOLate and a Dihydrooxazole Unit
  作者：Dieter K. Heldmann、Dieter Seebach

  DOI：10.1002/(sici)1522-2675(19990707)82:7<1096::aid-hlca1096>3.0.co;2-i

  日期：1999.7.7

  New types of chiral phosphorus/nitrogen ligands, capable of forming six-membered-ring metal chelates have been prepared from alpha,alpha,alpha',alpha'-tetraaryl-1,2-dioxolane-4,5-dimethanols (TADDOLs), PCl3, and dihydrooxazole alcohols (from amino acids) (7 in Scheme 1). The X-ray crystal structure of a Rh complex of one of these ligands, 8b, has been determined (Scheme 2 and Fig.). Enantioselective hydrosilylations of dialkyl and aryl alkyl ketones with Ph2SiH2/0.01 equiv. Rh-1.7 have been studied and found to provide secondary alcohols in enantiomer ratios of up to 97: 3 (Scheme 3 and Table). The ligand prepared from (R,R)-TADDOL and the (R)-valine-derived (R)-alpha,alpha-dimethyl-4-isopropyl-4,5-dihydro gives better results than the (R,R,S)-isomer (7d vs. 7c in Scheme 3), and an i-Pr group on the 4,5-dihydrooxazole ring gives rise to a slightly better selectivity than a Ph group. With the (R,R,R)-ligands the hydrogen transfer occurs from the Re face of the oxo groups (Sclleme 4).
• Designing the “Search Pathway” in the Development of a New Class of Highly Efficient Stereoselective Hydrosilylation Catalysts
  作者：Vincent César、Stéphane Bellemin-Laponnaz、Hubert Wadepohl、Lutz H. Gade

  DOI：10.1002/chem.200500132

  日期：2005.4.22

  coupling of oxazolines and N-heterocyclic carbenes leads to chelating C,N ancillary ligands for asymmetric catalysis that combine both an "anchor" unit and a stereodirecting element. Reacting various N-substituted imidazoles with 2-bromo-4(S)-tert-butyl- and 2-bromo-4(S)-isopropyloxazoline gave the imidazolium precursors of the stereodirecting ancillary ligands. A library of ten different ligand precursors

  恶唑啉和N-杂环卡宾的直接偶联导致螯合C，N辅助配体用于不对称催化，该配体结合了“锚”单元和立体定向元件。使各种N-取代的咪唑与2-溴-4（S）-叔丁基-和2-溴-4（S）-异丙基恶唑啉反应，得到立体定向辅助配体的咪唑前体。通过使用该简单程序，可获得十种不同配体前体的文库（65-97％的收率）。通过与[Rh（mu-OtBu）（nbd）} 2]（nbd =降冰片二烯）反应，在随后的步骤中将这些蛋白配体金属化，由KOtBu和[RhCl（nbd）} 2]原位生成相应的N -杂环卡宾配合物[RhBr（nbd）（恶唑啉基-卡宾）] 4 aj收率良好。两种铑配合物4 d和4 j的X射线衍射研究，建立了扭曲的方金字塔形配位几何结构，其中溴配体占据了顶端位置。发现铑-卡宾键的长度为2.070（4）A（4 d）和2.012（3）A（4 j）。用AgBF 4在二氯甲烷中处理配合物4 aj，得到用于酮的氢化
• E–H Bond Activations and Hydrosilylation Catalysis with Iron and Cobalt Metalloboranes
  作者：Mark A. Nesbit、Daniel L. M. Suess、Jonas C. Peters

  DOI：10.1021/acs.organomet.5b00530

  日期：2015.10.12

  An exciting challenge in transition metal catalyst design is to explore whether earth-abundant base metals such as Fe, Co, and Ni can mediate two-electron reductive transformations that their precious metal counterparts (e.g., Ru, Rh, Ir, and Pd) are better known to catalyze. Organometallic metalloboranes are an interesting design concept in this regard because they can serve as organometallic frustrated Lewis pairs. To build on prior studies with nickel metalloboranes featuring the DPB and (DPBMes)-D-Ph ligands in the context of H-2 and slime activation and catalysis (DPB = bis(o-diisopropylphosphinophenyl)phenylborane, (DPBMes)-D-Ph = bis (o-diphenylphosphinophenyl)mesitylborane), we now explore the reactivity of iron, [(DPB)Fe](2)(N-2), 1, and cobalt, (DPB)Co(N-2), 2, metalloboranes toward a series of substrates with E-H bonds (E = O, S, C, N) including phenol, thiophenol, benzo[h]quinoline, and 8-aminoquinoline. In addition to displaying high stoichiometric E-H bond activation reactivity, complexes 1 and 2 prove to be more active catalysts for the hydrosilylation of ketones and aldehydes with diphenylsilane relative to ((DPBMes)-D-Ph)Ni. Indeed, 2 appears to be the most active homogeneous cobalt catalyst reported to date for the hydrosilylation of acetophenone under the conditions studied.