四己基原硅酸酯 | 7425-86-7

• 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
• 中文名称: 四己基原硅酸酯
• 英文名称: silicic acid tetrahexyl ester
• 英文别名: tetrakis-hexyloxy-silane；Kieselsaeure-tetrahexylester；Tetrahexylsilicat；Tetrahexyl-orthosilicat；Tetrahexyloxy-silan；Tetrahexoxysilan；Tetrahexyl orthosilicate；tetrahexyl silicate
• CAS: 7425-86-7
• 化学式: C₂₄H₅₂O₄Si
• 分子量: 432.76
• InChiKey: HZYAPKYFYYWOKA-UHFFFAOYSA-N

物化性质

• 熔点：
  321 °C (decomp)
• 沸点：
  185.5-186.3 °C(Press: 1.5 Torr)
• 密度：
  0.890±0.06 g/cm3(Predicted)
• 保留指数：
  2178

计算性质

• 辛醇/水分配系数(LogP)：
  8.31
• 重原子数：
  29
• 可旋转键数：
  24
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  四己基原硅酸酯 、 N-羟基邻苯二甲酰亚胺对甲苯磺酸酯 在 silver fluoride 作用下， 以 乙腈 为溶剂， 生成 hexyl 2-(((hexyloxy)carbonyl)amino)benzoate
  参考文献：
  名称：

  AgF介导的N-甲苯磺酰环酰亚胺与硅酸酯的霍夫曼型反应

  摘要：

  开发了一种简单有效的 AgF 介导的N-甲苯磺酰环酰亚胺与硅酸酯的霍夫曼型反应。N-甲苯磺酰环状酰亚胺发生霍夫曼型重排/烷氧基化反应，其中硅酸酯充当烷氧基源。该反应在简单温和的条件下进行，以中等至良好的收率生成一系列邻氨基苯甲酸衍生的氨基甲酸酯。

  DOI：

  10.1016/j.tetlet.2023.154683
• 作为产物：
  描述：

  正己醇 在 四氯化硅 作用下， 生成 四己基原硅酸酯
  参考文献：
  名称：

  Bradley et al., Journal of the Chemical Society, 1953, p. 2025,2026

  摘要：

  DOI：

文献信息

• Level and extent of mercury contamination in Oregon, USA, lotic fish
  作者：Spencer A. Peterson、Alan T. Herlihy、Robert M. Hughes、Kathryn L. Motter、James M. Robbins

  DOI：10.1002/etc.5620211019

  日期：2002.10

  diversity across Oregon, the narrow range in fish tissue Hg levels suggests that atmospheric transport is an important vehicle for Hg distribution. In small fish, Hg levels were almost always low and showed little meaningful difference among fish taxa. In large fish, Hg levels were significantly related to fish length. Piscivores (pikeminnow and bass) had significantly higher Hg levels, and the slope

  我们对美国俄勒冈州的 154 个溪流和河流地点进行了概率调查，以评估鱼类组织中汞 (Hg) 污染的空间范围。样本包括对每个地点的小鱼（<120 毫米）和大鱼（>120 毫米）的全鱼分析，当两者都存在时。总体而言，小鱼（平均值 = 0.031；标准差 [SD] = 0.029）、大型食鱼动物（平均值 = 0.284；SD = 0.175）和大型反食动物（平均值 = 0.055；SD = 0.047）中的汞含量（微克/克）在相当窄的范围内被发现；总是高于检测值（0.0025 微克/克），几乎总是低于 0.4 微克/克。鉴于整个俄勒冈州生态区的多样性，鱼类组织中汞含量的范围很窄，这表明大气运输是汞分布的重要载体。在小鱼中，汞含量几乎总是很低，鱼类分类群之间几乎没有显着差异。在大鱼中，汞含量与鱼的长度显着相关。食鱼动物（pikeminnow 和鲈鱼）的汞含量明显较高，并且它们的汞含量/长度关系的斜
• Joffe; Post, Journal of Organic Chemistry, 1949, vol. 14, p. 424
  作者：Joffe、Post

  DOI：——

  日期：——
• STUDIES IN SILICO-ORGANIC COMPOUNDS. VIII. THE PREPARATION AND PROPERTIES OF POLYETHERS FROM TRICHLOROSILANE, CONTINUED^{1, 2}
  作者：IRVING JOFFE、HOWARD W. POST

  DOI：10.1021/jo01155a013

  日期：1949.5
• Molecular Manipulation of Two- and Three-Dimensional Silica Nanostructures by Alkoxysilylation of a Layered Silicate Octosilicate and Subsequent Hydrolysis of Alkoxy Groups
  作者：Dai Mochizuki、Atsushi Shimojima、Takeshi Imagawa、Kazuyuki Kuroda

  DOI：10.1021/ja042194e

  日期：2005.5.1

  A novel methodology for constructing molecularly ordered silica nanostructures with twodimensional (2-D) and three-dimensional (3-D) networks has been developed by using a stepwise process involving silylation of a layered silicate octosilicate with alkoxytrichlorosilanes [ROSiCl3, R = alkyl] and subsequent reaction within the interlayer spaces. Alkoxytrichlorosilanes react almost completely with octosilicate, bridging two closest Si-OH (or -O-) sites on the silicate layers, to form new five-membered rings. The unreacted functional groups, Si-Cl and Si-OR, are readily hydrolyzed by the posttreatment with a water/dimethyl sulfoxide (DMSO) or water/acetone mixture, leading to the formation of two types of silicate structures. The treatment with a water/DMSO mixture produced a unique crystalline 2-D silicate framework with geminal silanol groups, whereas a water/acetone mixture induced hydrolysis and subsequent condensation between adjacent layers to form a new 3-D silicate framework. The 2-D structure is retained by the presence of DMSO molecules within the swelled interlayer spaces and is transformed to a 3-D silicate upon desorption of DMSO. The structural modeling suggests that both of the 3-D silicates contain new cagelike frameworks where solvent molecules are trapped even at high temperature (up to 380 degrees C, in the case of acetone). Both 2-D and 3-D silica structures are quite different from known layered silicates and zeolite-like materials, indicating the potential of the present approach for precise design of various silicate structures at the molecular level.
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Si: MVol.C, 127, page 353 - 354
  作者：

  DOI：——

  日期：——