| 950696-88-5

• CAS: 950696-88-5
• 化学式: C₂₂H₃₀Cl₄Ga₂Si₂
• 分子量: 631.909
• InChiKey: JJPNEMKDBWSQJR-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
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• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  gallium hydrogen dichloride 、 苯基乙炔基三甲基硅烷 以 正己烷 为溶剂， 以82%的产率得到
  参考文献：
  名称：

  Hydrogallation of Alkynes with H−GaCl₂: Formation of Organoelement Dichlorogallium Compounds Potentially Applicable as Chelating Lewis Acids

  摘要：

  Treatment of trimethylsilylethynyl benzenes C6H6-x(C C-SiMe3)(x) (x = 1-3) with the hydridodichlorogallium compound H-GaCl2 afforded, almost quantitatively, the alkenylphenyl compounds C6H6-x[C(H)=C(SiMe3)-GaCl2](x) [x = 1 (6), 2 (7), and 3 (8)] by hydrogallation. Only compound 6 was readily soluble in n-hexane; it formed dimers via Ga-Cl bridges. The bisalkenyl compound 7 was only sparingly soluble; its molecular structure consisted of a singular dimeric formula unit with a cyclophane-type constitution and two bridging Ga2Cl2 heterocycles. The overall structure may be described by a molecular box formed by a large macrocycle comprising 22 Ga, C, and Cl atoms. Compound 8 proved to be insoluble in hydrocarbon solvents. Its molecular structure could not be detected. Extraction of the solid raw products of 7 and 8 with diethyl ether yielded small quantities of the ether adducts C6H6-x[C(H)=C(SiMe3)-GaCl2(OEt2)](x) (x = 2, 3) [7(OEt2)(2) and 8(OEt2)(3)], both of which are monomeric because of the coordinative saturation of their gallium atoms. The tetraalkyne 1,2,4,5-tetrakis(trimethylsilylethynyl)benzene gave a different reaction course. Complete hydrogallation resulted in the release of 2 equiv of GaCl3, and neighboring alkenyl groups of the product 9 were connected by GaCl bridges to form seven-membered heterocycles and an overall tricyclic compound. Compound 9 was characterized as a diethyl ether adduct.

  DOI：

  10.1021/ic700767a