tetra(dodecyloxy)silane | 18840-77-2

• 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: tetra(dodecyloxy)silane
• 英文别名: silicic acid tetradodecyl ester；tetrakis-dodecyloxy-silane；Tetradodecyl silicate
• CAS: 18840-77-2
• 化学式: C₄₈H₁₀₀O₄Si
• 分子量: 769.405
• InChiKey: NEZPEQJENXACBV-UHFFFAOYSA-N

物化性质

• 沸点：
  534-538 °C
• 密度：
  0.872±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  17.17
• 重原子数：
  53
• 可旋转键数：
  48
• 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

• 作为产物：
  描述：

  十二烷醇 在 silica gel 、 magnesium chloride 作用下， 以58.9 %的产率得到tetra(dodecyloxy)silane
  参考文献：
  名称：

  一种烷氧基硅烷的短流程制备方法

  摘要：

  本发明涉及一种烷氧基硅烷的短流程制备方法，将硅源与催化剂加入醇中，氮气置换后在负压环境下加热反应，反应完成后过滤，滤液经氮气置换后减压蒸馏，得到的固体产物用有机溶剂溶解、过滤，滤液经减压蒸馏除去有机溶剂，得到烷氧基硅烷。本方法直接以沉淀法白炭黑为硅源与醇直接反应，生成烷氧基硅烷。该工艺合成路线短，操作简单，能耗低，生产成本低且环境友好。

  公开号：

  CN116217606A

文献信息

• Design of silicate nanostructures by interlayer alkoxysilylation of layered silicates (magadiite and kenyaite) and subsequent hydrolysis of alkoxy groups
  作者：Dai Mochizuki、Kazuyuki Kuroda

  DOI：10.1039/b514157e

  日期：——

  to transform into Si–OH groups. Depending on the solvent for hydrolysis, the hydrolyzed product derived from magadiite forms either a new 3-D silicate structure by condensation of interlayer silanol groups or a new 2-D silicate structure by geminal Si–OH groups remaining immobilized on both sides of the silicate layers. The 3-D silicate structure exhibits microporosity (130 m2 g−1) and hydrophilic

  二氧化硅纳米结构是通过层状硅酸盐（magadiite和kenyaite）与烷氧基三氯硅烷的层间烷氧基甲硅烷基化以及随后的烷氧基水解而精心设计的。烷氧基三氯硅烷[（RO）ClSiCl 2的二氯甲硅烷基[]在层状硅酸盐表面上的两个相邻的Si-OH基团上反应形成桥，在桥上留下两个官能团（Si-OR和Si-Cl）。其余的双官能团几乎完全水解成Si-OH基团。取决于水解的溶剂，由magadiite衍生的水解产物要么通过层间硅烷醇基团的缩合形成新的3-D硅酸盐结构，要么通过保持固定在硅酸盐两面上的双键Si-OH基团形成新的2-D硅酸盐结构。层。3-D硅酸盐结构表现出微孔性（130 m 2 g -1）和亲水行为。另一方面，即使当用于水解的溶剂完全蒸发时，来自肯尼亚沸石的水解产物也仅具有2-D硅酸盐结构。
• 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, 128, page 355 - 356
  作者：

  DOI：——

  日期：——
• Higher alkyl borates and silicates and process for preparing same
  申请人：DU PONT

  公开号：US02053474A1

  公开（公告）日：1936-09-08
• ALAGAR, M.;KRISHNASAMY, V., HUNG. J. IND. CHEM., 15,(1987) N 4, 453-468
  作者：ALAGAR, M.、KRISHNASAMY, V.

  DOI：——

  日期：——