[H5C6-CH2-C(SiMe3)(GaCl2)2]2 | 1005391-33-2

• 英文名称: [H5C6-CH2-C(SiMe3)(GaCl2)2]2
• CAS: 1005391-33-2
• 化学式: C₂₂H₃₂Cl₈Ga₄Si₂
• 分子量: 915.183
• InChiKey: ITHZVHJFKXRHCD-UHFFFAOYSA-F

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  [H5C6-CH2-C(SiMe3)(GaCl2)2]2 以 甲苯 为溶剂， 生成
  参考文献：
  名称：

  碳桥联的镓化合物螯合路易斯酸：硫酚盐和苯甲酸酯阴离子通过H 5 C 6 -CH 2 -C（SiMe 3）[Ga（CH 2 t Bu）2 ] 2络合

  摘要：

  二苯基化合物H 5 C 6 -CH 2 C（SiMe 3）（GaCl 2）2（6）可以通过将苯基（三甲基甲硅烷基）乙炔与H-GaCl 2进行2倍加氢氢化制得。用新戊基锂处理通过取代所有四个氯原子得到相应的四戊基叔丁基化合物7。化合物7具有连接在一个碳原子上的两个配位不饱和镓原子，因此适合用作螯合的路易斯酸。因此，溶解在1，2-二氟苯中的硫代四丁基铵硫酚盐容易与7反应得到加合物。如图8所示，其中硫代酚基的硫原子被两个镓原子配位而形成四元的CGa 2 S杂环。用苯甲酸酯阴离子处理7时，形成类似的化合物（9）。由于与苯甲酸酯配体的每个氧原子配位至一个镓原子以产生六元Ga 2 C 2 O 2杂环，因此与8个相比，结构基序略有不同。

  DOI：

  10.1021/om800068s
• 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91%的产率得到[H5C6-CH2-C(SiMe3)(GaCl2)2]2
  参考文献：
  名称：

  Twofold Hydrogallation of C⋮C Triple Bonds by H−GaCl₂Synthesis of Chelating Lewis Acids and Their Application in Adduct Formation

  摘要：

  The twofold addition of Ga-H to C C triple bonds (hydrogallation) did not succeed by treatment of alkynes with an excess of dialkylgallium hydrides. In contrast, double hydrogallation was easily achieved by the reactions of H-GaCl2 with trimethylsilyl-substituted alkynes [trimethylsilylphenylethyne and 1,4-bis(trimethylsilylethynyl) benzene) in appropriate stoichiometric ratios. The monoalkyne yielded the compound [H5C6-CH2-C(SiMe3)(GaCl2)(2)](2), 1, which was only sparingly soluble in n-hexane. Crystal structure determination revealed a dimeric formula unit possessing two parallel Ga2Cl2 heterocycles in the solid state. Treatment of the dialkyne with four equivalents of the hydride gave a colorless precipitate, which was completely insoluble in, hydrocarbons. Addition of diethyl ether to both products afforded soluble and monomeric etherates 1 (OEt2)(2) and 2 in which the two or four gallium atoms, respectively, were coordinated by ether molecules. Preliminary experiments with simple Lewis bases showed the principle capability of 1 to act as an effective chelating Lewis acid. Adducts of the type [HSC6-CH2-C(SiMe3)(,GaCl2)(GaCIX)(mu-Cl)](-)(4-6) resulted upon treatment With halide ions (X = Cl, Br, l).

  DOI：

  10.1021/ic701928s

文献信息

• Unexpected Formation of Ga₄C₂H₄ Heteroadamantane Cages by the Reaction of Carbon-Bridged Bis(dichlorogallium) Compounds with <i>tert</i>-Butyllithium
  作者：Werner Uhl、Dirk Kovert、Sarina Zemke、Alexander Hepp

  DOI：10.1021/om200573g

  日期：2011.9.12

  Reactions of the carbon-bridged bis(dichlorogallium) compounds (Cl2Ga)(2)C(SiR2R')-CH2-Ph (1a, R = R' = Me; 1b, R = Ph, R' = Me; 1c, R = Me, R' = CMe3) with four equivalents of tert-butyllithium yielded bis[tert-butyl(hydrido)digallium] compounds [(Me3C)(H)Ga](2)C(SiR2R')-CH2-Ph}(2) (3a to 3c), via beta-elimination and release of isobutene. 3a to 3c are dimeric in solution and the solid state and contain unprecedented Ga4C2H4 heteroadamantane structures in which four metal atoms are bridged by four hydrogen and two carbon atoms. In contrast, n-propyllithium gave the monomeric tetra(n-propyl)digallium compound ((Pr2Ga)-Pr-n)(2)C(SiMe3)-CH2-Ph (2) under similar conditions, which has two coordinatively unsaturated gallium atoms and may be applicable as a chelating Lewis acid.