1,6-dibromobicyclo<4.1.0>heptane | 85739-35-1

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机溴化物
• 英文名称: 1,6-dibromobicyclo<4.1.0>heptane
• 英文别名: 1,6-Dibromobicyclo[4.1.0]heptane
• CAS: 85739-35-1
• 化学式: C₇H₁₀Br₂
• 分子量: 253.964
• InChiKey: YMVGBLYVLBUYQI-UHFFFAOYSA-N

物化性质

• 沸点：
  222.5±13.0 °C(Predicted)
• 密度：
  2.057±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1,6-dibromobicyclo<4.1.0>heptane 以 乙醚 为溶剂， 反应 0.08h， 生成 methyl 1-tert-butylbicyclo<4.1.0>heptane-6-carboxylate
  参考文献：
  名称：

  1,2-Bridged cyclopropenes

  摘要：

  The dehalogenations of 1,5-dihalobicyclo[3.1.0]hexanes and 1,6-dihalobicyclo[4.1.0]heptanes have been studied in solution and in the gas phase. The solution reactions led to the formation of bicyclo[3.1.0]hex-1(5)-ene and bicyclo[4.1.0]hept-1(6)-ene, respectively, but this was followed by rapid ene reactions forming dimers, which then coupled to form tetramers. The cyclopropenes could be trapped as Diels-Alder adducts. In the gas phase, with use of either potassium atoms or solid methyllithium, the products of thermal ring opening, methylenecyclopentene and methylenecyclohexene, were formed. A set of theoretical calculations was carried out dealing with the strain energies, inversion barriers, bond properties, and atom properties of bicyclo[1.1.0]but-1(3)-ene, bicyclo[2.1.0]pent-1(4)-ene, and the cyclopropenes from the experimental study. Whereas bicyclohexene and bicycloheptene appear to be fairly normal compounds except for their high strain energies, bicyclopentene may be a transition state for the carbon scrambling of methylenecyclobutylidene, and bicyclobutene has an unusual structure and charge-density distribution.

  DOI：

  10.1021/ja00021a024
• 作为产物：
  描述：

  1-(氯甲基)环己烷-1,2-二甲酸二甲酯 在 氢氧化钾 、 溴 、 sodium methylate 、 magnesium sulfate 、 mercury(II) oxide 作用下， 以 甲醇 、 苯 为溶剂， 反应 11.75h， 生成 1,6-dibromobicyclo<4.1.0>heptane
  参考文献：
  名称：

  1,2-Bridged cyclopropenes

  摘要：

  The dehalogenations of 1,5-dihalobicyclo[3.1.0]hexanes and 1,6-dihalobicyclo[4.1.0]heptanes have been studied in solution and in the gas phase. The solution reactions led to the formation of bicyclo[3.1.0]hex-1(5)-ene and bicyclo[4.1.0]hept-1(6)-ene, respectively, but this was followed by rapid ene reactions forming dimers, which then coupled to form tetramers. The cyclopropenes could be trapped as Diels-Alder adducts. In the gas phase, with use of either potassium atoms or solid methyllithium, the products of thermal ring opening, methylenecyclopentene and methylenecyclohexene, were formed. A set of theoretical calculations was carried out dealing with the strain energies, inversion barriers, bond properties, and atom properties of bicyclo[1.1.0]but-1(3)-ene, bicyclo[2.1.0]pent-1(4)-ene, and the cyclopropenes from the experimental study. Whereas bicyclohexene and bicycloheptene appear to be fairly normal compounds except for their high strain energies, bicyclopentene may be a transition state for the carbon scrambling of methylenecyclobutylidene, and bicyclobutene has an unusual structure and charge-density distribution.

  DOI：

  10.1021/ja00021a024

文献信息

• WIBERG, K. B.;BONNEVILLE, G., TETRAHEDRON LETT., 1982, 23, N 51, 5385-5388
  作者：WIBERG, K. B.、BONNEVILLE, G.

  DOI：——

  日期：——
• 1,2-Bridged cyclopropenes
  作者：Kenneth B. Wiberg、Dean R. Artis、G. Bonneville

  DOI：10.1021/ja00021a024

  日期：1991.10

  The dehalogenations of 1,5-dihalobicyclo[3.1.0]hexanes and 1,6-dihalobicyclo[4.1.0]heptanes have been studied in solution and in the gas phase. The solution reactions led to the formation of bicyclo[3.1.0]hex-1(5)-ene and bicyclo[4.1.0]hept-1(6)-ene, respectively, but this was followed by rapid ene reactions forming dimers, which then coupled to form tetramers. The cyclopropenes could be trapped as Diels-Alder adducts. In the gas phase, with use of either potassium atoms or solid methyllithium, the products of thermal ring opening, methylenecyclopentene and methylenecyclohexene, were formed. A set of theoretical calculations was carried out dealing with the strain energies, inversion barriers, bond properties, and atom properties of bicyclo[1.1.0]but-1(3)-ene, bicyclo[2.1.0]pent-1(4)-ene, and the cyclopropenes from the experimental study. Whereas bicyclohexene and bicycloheptene appear to be fairly normal compounds except for their high strain energies, bicyclopentene may be a transition state for the carbon scrambling of methylenecyclobutylidene, and bicyclobutene has an unusual structure and charge-density distribution.