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trans-7-bromo-7,7-difluoro-1,5-heptadiene | 85685-19-4

中文名称
——
中文别名
——
英文名称
trans-7-bromo-7,7-difluoro-1,5-heptadiene
英文别名
(E)-1-bromo-1,1-difluorohepta-2,6-diene;(5E)-7-bromo-7,7-difluorohepta-1,5-diene
trans-7-bromo-7,7-difluoro-1,5-heptadiene化学式
CAS
85685-19-4
化学式
C7H9BrF2
mdl
——
分子量
211.049
InChiKey
IKOQYWFIHRKFDL-AATRIKPKSA-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):
    3.6
  • 重原子数:
    10
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.43
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为产物:
    描述:
    1,5-已二烯氢氧化钾 作用下, 100.0~120.0 ℃ 、4.0 kPa 条件下, 反应 6.5h, 生成 trans-7-bromo-7,7-difluoro-1,5-heptadiene
    参考文献:
    名称:
    氟作为取代基的热力学效应:烯丙基CF 3和CF 2 H
    摘要:
    检查了7,7,7-三氟-1,5-庚二烯和7,7-二氟-1,5-庚二烯的对应重排,以定量了解烯丙基氟取代的热力学效应。到ΔH组值的贡献˚F的,从而能够同时被确定为烯丙基氟取代的碳基团:C(F)3(C d)= -166.0,C(F)2(H)(C d)= -107.6和C(F)(H)2(C d)= -52.2 kcal /摩尔。
    DOI:
    10.1016/0040-4020(82)87019-1
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文献信息

  • A convenient synthesis of bromodifluoromethyl-substituted alkenes
    作者:Chang-Ming Hu、Jian Chen
    DOI:10.1016/0022-1139(93)03051-m
    日期:1994.10
    Various functionalized bromodifluoromethyl-substituted alkenes have been prepared by addition of dibromodifluoromethane to functionalized alkenes promoted by a CrCl3/Fe bimetal redox system, followed by dehydrobromination with KF/Al2O3.
  • Synthesis of bromodifluoromethyl-substituted alkenes. Potassium fluoride supported on alumina as a dehydrobrominating agent
    作者:Chang-Ming Hu、Jian Chen
    DOI:10.1016/0022-1139(93)02954-d
    日期:1994.1
    Potassium fluoride supported on alumina is an efficient dehydrobrominating agent. 1,3-Dibromo-1,1-difluoroalkanes - adducts of dibromodifluoromethane and alkenes - give bromodifluoromethyl-substituted alkenes 2 on dehydrobromination with this agent in good to excellent yields. Alkenes 2 were a mixture of Z- and E-isomers, with the former predominating. Functional groups such as ester, carbonyl, ethylenic and chloromethyl are not affected under such reaction conditions.
  • The thermodynamic effect of fluorine as a substituent
    作者:William R. Dolbier、Karl S. Medinger
    DOI:10.1016/0040-4020(82)87019-1
    日期:1982.1
    Cope rearrangements of 7,7,7-trifluoro-1,5-heptadiene and 7,7-difluoro-1,5-heptadiene were examined to gain quantitative understanding of the thermodynamic effect of allylic fluorine substitution. Group value contributions to ΔHf's were thus able to be determined for allylic fluorine-substituted carbon groups: C(F)3(Cd) = −166.0, C(F)2(H)(Cd)= −107.6 and C(F)(H)2(Cd) = −52.2 kcal/mole.
    检查了7,7,7-三氟-1,5-庚二烯和7,7-二氟-1,5-庚二烯的对应重排,以定量了解烯丙基氟取代的热力学效应。到ΔH组值的贡献˚F的,从而能够同时被确定为烯丙基氟取代的碳基团:C(F)3(C d)= -166.0,C(F)2(H)(C d)= -107.6和C(F)(H)2(C d)= -52.2 kcal /摩尔。
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