cis-1,2-dichlorodiborane | 168841-49-4

• 英文名称: cis-1,2-dichlorodiborane
• CAS: 168841-49-4；168841-50-7
• 化学式: B₂Cl₂H₄
• 分子量: 96.5598
• InChiKey: LUGRARZGBWOZLP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：
  None
• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  甲基二氯硼烷 、 铜 生成 cis-1,2-dichlorodiborane
  参考文献：
  名称：

  铜原子与硼-氯化合物的反应

  摘要：

  DOI：

  10.1039/c1968001525a

文献信息

• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: B: B-Verb.9, 5.2.2, page 173 - 181
  作者：

  DOI：——

  日期：——
• Hydroboration with Haloborane/Trialkylsilane Mixtures
  作者：Raman Soundararajan、Donald S. Matteson

  DOI：10.1021/om00009a018

  日期：1995.9

  Trialkylsilanes or dialkylsilanes react rapidly with boron trichloride in the absence of ethereal solvents or other nucleophiles to form unsolvated dichloroborane. If no substrate is present, dichloroborane disproportionates to trichloroborane and two geometric isomers of chloroborane dimer, which in turn yield monochlorodiborane and, slowly but irreversibly, diborane. All of the B-H compounds in the mixture except diborane are highly active hydroborating agents. With alkenes in the presence of sufficient boron trichloride, the products are alkyldichloroboranes. These are free from detectable contamination by dialkylchloroboranes unless more than 1 mol of hydride is present. Similar hydroboration of terminal acetylenes can be controlled to yield either (E)-1-(dichloroboryl)alkenes or 1,1-bis(dichloroboryl)alkanes, each free from significant contamination by the other. Alkyldichloroboranes with trialkylsilanes at 25 degrees C produce alkylmonochloroboranes, detected by B-11 NMR. 1,1-Bis(dichloroboryl)alkanes similarly yield 1,1-diborylalkane dimers. An alkylmonochloroborane can hydroborate a second alkene to form a dialkylchloroborane. For this purpose, differing alkyl groups may be introduced in either order, regardless of their relative steric properties. With 2 mol of trialkylsilane, alkyldichloroboranes are converted to alkylborane dimers. Boron tribromide and its bromoborane derivatives behave similarly to the chloro compounds in the examples tested.