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1,5-13C-1,5-dibromopentane | 84557-14-2

中文名称
——
中文别名
——
英文名称
1,5-13C-1,5-dibromopentane
英文别名
1,5-Dibrom-<1,5-13C2>-pentan;1,5-13C-1,5-dibromopentane
1,5-13C-1,5-dibromopentane化学式
CAS
84557-14-2
化学式
C5H10Br2
mdl
——
分子量
231.92
InChiKey
IBODDUNKEPPBKW-MQIHXRCWSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    2.95
  • 重原子数:
    7.0
  • 可旋转键数:
    4.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    0.0
  • 氢给体数:
    0.0
  • 氢受体数:
    0.0

反应信息

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文献信息

  • Mass spectroscopic fragmentation pathways of 1,8-nonadiyne
    作者:Ronny Charles Robbins、Norman George Foster
    DOI:10.1002/oms.1210200304
    日期:1985.3
    AbstractCleavage α to triple bonds in straight‐chain hydrocabons with only one triple bond is a very minor process. The mass spectrum of 1,8‐nonadiyne (mol. wt 120) shows strong peaks at around m/z91, which points to a major fragmentation pathway of cleavage α to triple bonds in straight‐chain diynes. This study attempts to explain this paradox. Through‐space interaction was indicated through the use of carbon‐13 labelling of the terminal carbon atoms in 1,8‐nonadiyne, 1,2,8,9‐13C‐1,8‐Nonadiyne and 3,7‐13C‐1,8‐nonadiyne were prepared to determine which carbon atoms were lost in the process of [M]+˙ and [M1]+ going to m/z91. These two molecules were chosen for ease of synthesis. Low‐resolution mass spectra and low‐voltage studies determined that a major portion of carbon atoms being lost were from the middle of the carbon chain. This points to a fragmentation pathway that results from through‐space interaction of the two terminal triple bonds. It is likely that ionization enhances this through‐space interaction of the two triple bonds.
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