dimethylphenylsilyl 3-phenylpropionate | 1215225-73-2

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: dimethylphenylsilyl 3-phenylpropionate
• CAS: 1215225-73-2
• 化学式: C₁₇H₂₀O₂Si
• 分子量: 284.43
• InChiKey: IJMDZHZRQHEWPO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.27
• 重原子数：
  20.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  1-甲氧基-1-(三甲基甲硅氧基)-2-甲基-1-丙烯 、 dimethylphenylsilyl 3-phenylpropionate 在 indium (III) iodide 、 苯硅烷 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 生成 methyl 3-hydroxy-2,2-dimethyl-5-phenylpentanoate
  参考文献：
  名称：

  Syntheses of Aldol Products and Cyanohydrins from Carboxylic Acids Using Hydrosilanes, Organosilicon Reagents, and Indium Triiodide Catalyst

  摘要：

  羧酸在一碘化铟催化的还原性羟醛反应和还原氰化反应中分别被用来生成羟醛加合物和氰醇，其中两种不同硅氢试剂的分别添加与烯酮硅缩醛或硅基氰化物结合使用是至关重要的。

  DOI：

  10.1246/cl.130790
• 作为产物：
  描述：

  二甲基苯基硅烷 、 3-苯基丙酸 在 indium (III) iodide 作用下， 以 二氯甲烷 为溶剂， 反应 0.05h， 生成 dimethylphenylsilyl 3-phenylpropionate
  参考文献：
  名称：

  Syntheses of Aldol Products and Cyanohydrins from Carboxylic Acids Using Hydrosilanes, Organosilicon Reagents, and Indium Triiodide Catalyst

  摘要：

  羧酸在一碘化铟催化的还原性羟醛反应和还原氰化反应中分别被用来生成羟醛加合物和氰醇，其中两种不同硅氢试剂的分别添加与烯酮硅缩醛或硅基氰化物结合使用是至关重要的。

  DOI：

  10.1246/cl.130790

文献信息

• Hydrosilanes Are Not Always Reducing Agents for Carbonyl Compounds, II: Ruthenium-Catalyzed Deprotection of tert-Butyl Groups in Carbamates, Carbonates, Esters, and Ethers
  作者：Shiori Hanada、Akihiro Yuasa、Hirotaka Kuroiwa、Yukihiro Motoyama、Hideo Nagashima

  DOI：10.1002/ejoc.200901279

  日期：2010.2

  Hydrosilanes act as a reagent to cleave the C–O bond of OtBu groups in carbamates, carbonates, esters, and ethers by catalysis of a triruthenium cluster. The reaction offers a novel deprotection method for OtBu groups under neutral conditions, showing unique selectivities that have never been accomplished with conventional Bronsted or Lewis acidic promoters. Possible mechanisms for C–O cleavage are

  氢硅烷作为一种试剂，通过三钌簇的催化裂解氨基甲酸酯、碳酸酯、酯和醚中 OtBu 基团的 C-O 键。该反应提供了一种在中性条件下对 OtBu 基团进行脱保护的新方法，显示出使用传统布朗斯台德或路易斯酸性促进剂从未实现过的独特选择性。在 NMR 光谱分析的基础上讨论了 C-O 裂解的可能机制。
• An Efficient Solvent-Free Route to Silyl Esters and Silyl Ethers
  作者：Yuko Ojima、Kazuya Yamaguchi、Noritaka Mizuno

  DOI：10.1002/adsc.200900230

  日期：2009.6

  Abstractmagnified imageDinuclear metal complexes, especially (p‐cymene)ruthenium dichloride dimer [RuCl2(p‐cymene)]2}, have been found to exhibit high catalytic performance for the dehydrosilylation of various kinds of carboxylic acids and alcohols. The dehydrosilylation with [RuCl2(p‐cymene)]2 proceeded efficiently with only one equivalent of silane with respect to substrate (carboxylic acids or alcohols) under solvent‐free conditions to give the corresponding silyl esters and ethers in excellent yields with a high turnover number (TON) and frequency (TOF). The 1H NMR spectrum of a toluene‐d8 solution of [RuCl2(p‐cymene)]2 and a silane showed a signal assignable to the ruthenium hydride species. In contrast, no new signals were detected in the 1H NMR spectrum of a toluene‐d8 solution of [RuCl2(p‐cymene)]2 and a carboxylic acid or an alcohol. Therefore, the ruthenium metal in [RuCl2(p‐cymene)]2 activates a silane to afford the hydride intermediate, possibly a silylmetal hydride species. Then, the nucleophilic attack of a substrate (carboxylic acid or alcohol) to the hydride intermediate proceeds to give the corresponding silylated product. The present dehydrosilylation with an optically active silane proceeded exclusively under inversion of stereochemistry at the chiral silicon center, suggesting that the nucleophilic attack of a substrate to the hydride intermediate occurs from the backside of the ruthenium‐silicon bond.