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3-bromo-2-iodocyclopent-2-enone | 892145-42-5

中文名称
——
中文别名
——
英文名称
3-bromo-2-iodocyclopent-2-enone
英文别名
3-Bromo-2-iodocyclopent-2-EN-1-one
3-bromo-2-iodocyclopent-2-enone化学式
CAS
892145-42-5
化学式
C5H4BrIO
mdl
——
分子量
286.895
InChiKey
FHSDVOWMSIEYEY-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

  • 熔点:
    81-83 °C
  • 沸点:
    256.3±40.0 °C(Predicted)
  • 密度:
    2.46±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.6
  • 重原子数:
    8
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.4
  • 拓扑面积:
    17.1
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    3-bromo-2-iodocyclopent-2-enone咪唑六甲基磷酰三胺4-二甲氨基吡啶 、 sodium tetrahydroborate 、 正丁基锂 、 cerium(III) chloride 作用下, 以 四氢呋喃甲醇正己烷二氯甲烷 为溶剂, 反应 5.2h, 生成 (3-Bromo-2-butyl-cyclopent-2-enyloxy)-tert-butyl-dimethyl-silane
    参考文献:
    名称:
    1,2-Bisanionic Coupling Approach to 2,3-Disubstituted Cyclopentenols and Cyclopentenones
    摘要:
    We describe a new approach to 2,3-disubstituted cyclopentenols and cyclopentenones through two consecutive regioselective additions of equal or different electrophiles to a cyclopentene bisanionic synthon. Indeed, on exposure to BuLi, 3-bromo-2-iodocyclopent-2-enol O-TBS ether undergoes iodine-lithium permutation with complete regioselectivity. Successive reaction of the monolithium anion with different C(sp(2))and C(sp(3))-electrophiles affords the corresponding 2-substituted-3-bromocyclopentenol derivative. Subsequent bromo-lithium exchange with t-BuLi, followed by reaction with an equal or different electrophile, affords the desired 2,3-disubstituted cyclopentenol.
    DOI:
    10.1021/ol060654y
  • 作为产物:
    描述:
    1,3-环戊二酮potassium iodate草酰溴氢碘酸 作用下, 以 二氯甲烷N,N-二甲基甲酰胺 为溶剂, 反应 0.75h, 生成 3-bromo-2-iodocyclopent-2-enone
    参考文献:
    名称:
    1,2-Bisanionic Coupling Approach to 2,3-Disubstituted Cyclopentenols and Cyclopentenones
    摘要:
    We describe a new approach to 2,3-disubstituted cyclopentenols and cyclopentenones through two consecutive regioselective additions of equal or different electrophiles to a cyclopentene bisanionic synthon. Indeed, on exposure to BuLi, 3-bromo-2-iodocyclopent-2-enol O-TBS ether undergoes iodine-lithium permutation with complete regioselectivity. Successive reaction of the monolithium anion with different C(sp(2))and C(sp(3))-electrophiles affords the corresponding 2-substituted-3-bromocyclopentenol derivative. Subsequent bromo-lithium exchange with t-BuLi, followed by reaction with an equal or different electrophile, affords the desired 2,3-disubstituted cyclopentenol.
    DOI:
    10.1021/ol060654y
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