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4-bromo-3-methylbut-3-en-1-ol | 10379-47-2

中文名称
——
中文别名
——
英文名称
4-bromo-3-methylbut-3-en-1-ol
英文别名
E/Z-4-bromo-3-methylbut-3-en-1-ol;4-Brom-3-methyl-but-3-en-1-ol
4-bromo-3-methylbut-3-en-1-ol化学式
CAS
10379-47-2
化学式
C5H9BrO
mdl
——
分子量
165.03
InChiKey
WEMPVIWDYRNJBW-UHFFFAOYSA-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

物化性质

  • 沸点:
    206.4±23.0 °C(Predicted)
  • 密度:
    1.432±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.6
  • 重原子数:
    7
  • 可旋转键数:
    2
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.6
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

反应信息

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文献信息

  • The generation and trapping of 1,2-Dibromo-3-methylbut-2-en-1-ylidenes
    作者:Ahmad R. Al Dulayymi、Juma'a R. Al Dulayymi、Mark S. Baird、Leela Rajaram
    DOI:10.1016/0040-4020(95)00448-h
    日期:1995.7
    1,2-Dibromo-3,3-dimerhylcyclopropene, generated by debromination of 1,1,2,2-tetrabromo-3,3-dimethylcyclopropane on reaction with methyllithium, ring-opens at 0-20 degrees C to produce 1,2-dibromo-3-methylbut-2-en-1-ylidene. This is trapped by alkenes to give vinylcyclopropanes. In the case of electron rich alkenes, the stereochemistry is retained in the product, suggesting that a singlet carbene is involved. In the case of alpha,beta-unsaturated esters, ketones or nitriles, the major cyclopropane produced has the vinyl and electron-withdrawing groups cis-related. 3-(2-Methoxy-ethyl)-3-methyl- and 3-(2-bromoethyl)-3-methyl-1,2-dibromocyclopropenes also ring-open at ambient temperature but little stereoselectivity is observed in the trapping of the derived vinyl-carbenes by alkenes. The reaction of 3-(2-hrdroxrethyl)-3-methyl-1,1,2,2-tetrabromocyclopropane with methyl lithium or diethylphosphite and triethylamine does not lead to an isolable cyclo-propene, but instead to Z-1,2-dibromo-3-methylbuta-1,3-diene; quenching with deuterium oxide at low temperature leads to the incorporation of deuterium at C-1.
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