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(2R,4R)-1,5-dichloro-2,4-pentanediol | 136030-28-9

中文名称
——
中文别名
——
英文名称
(2R,4R)-1,5-dichloro-2,4-pentanediol
英文别名
(2R,4R)-1,5-dichloropentane-2,4-diol;2,4-Pentanediol, 1,5-dichloro-, (2r,4r)-
(2R,4R)-1,5-dichloro-2,4-pentanediol化学式
CAS
136030-28-9
化学式
C5H10Cl2O2
mdl
——
分子量
173.039
InChiKey
QJULQKBJMRGSCF-RFZPGFLSSA-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:
    334.9±42.0 °C(Predicted)
  • 密度:
    1.335±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    0.5
  • 重原子数:
    9
  • 可旋转键数:
    4
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    40.5
  • 氢给体数:
    2
  • 氢受体数:
    2

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    丁内酯关键构件的合成 → Roflamycoin 多元醇部分的 1,3-二醇方法
    摘要:
    为了制备三(γ-内酯)3,从二氯二醇12(99.8%ee)合成单(γ-内酯)6。双环氧化物 9 – 衍生自二氯二醇 12 (99.8% ee) – 与来自 2-lithio-1,5-己二烯和 CuI 的 Gilman 铜酸盐开环,几乎完全得到单环氧化物 21;再经过五步,得到与目标分子6具有相同立体三联体但保护基不同的γ-内酯30。单环氧化物 33 - 也衍生自二氯二醇 12 - 用相同的吉尔曼铜酸盐开环,得到化合物 35。 它通过七个步骤转化为正确保护的 γ-内酯 6,关键反应是臭氧分解 35 36 和非对映选择性还原 36 反-37.
    DOI:
    10.1002/(sici)1099-0690(199806)1998:6<1031::aid-ejoc1031>3.0.co;2-d
  • 作为产物:
    描述:
    2,4-戊二酮,1,5-二氯 在 Ru2Cl4{2,2'-bis(diphenylphosphino)-1,1'-binaphthyl}2*N(C2H5)3 、 氢气 作用下, 以 甲醇 为溶剂, 65.0~70.0 ℃ 、8.62 MPa 条件下, 以7.66 g的产率得到(2R,4R)-1,5-dichloro-2,4-pentanediol
    参考文献:
    名称:
    PREPARATION OF (R,R)-1,2:4,5-DIEPOXYPENTANE
    摘要:
    DOI:
    10.15227/orgsyn.077.0001
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文献信息

  • Synthesis of cyclic 1,3-diols as scaffolds for spatially directed libraries
    作者:Gurpreet Singh、Jeffrey Aubé
    DOI:10.1039/c6ob00598e
    日期:——

    A series of 1,3-diols has been synthesized and used to create a pilot library of spatially diverse compounds.

    一系列1,3-二醇已经合成并用于创建一个空间多样化化合物的试验库。
  • Stereodivergent Synthesis of Enantioenriched 4-Hydroxy-2-cyclopentenones
    作者:Gurpreet Singh、Angelica Meyer、Jeffrey Aubé
    DOI:10.1021/jo402539p
    日期:2014.1.3
    Protected 4-hydroxycyclopentenones (4-HCPs) constitute an important class of intermediates in chemical synthesis. A route to this class of compound has been developed. Key steps include Noyori reduction (which establishes the stereochemistry of the product), ring-closing metathesis, and simple functional group conversions to provide a set of substituted 4-HCPs in either enantiomeric form.
  • Optically pure 1,3-diols from (2R,4R)- and (2S,4S)-1,2:4,5-diepoxypentane
    作者:Scott D. Rychnovsky、George Griesgraber、Sam Zeller、Donald J. Skalitzky
    DOI:10.1021/jo00017a032
    日期:1991.8
    Optically pure (> 97% ee) (2R,4R)-1,2:4,5-diepoxypentane (1) and its enantiomer can be prepared in three steps from 2,4-pentanedione without the need for chromatographic purification. Diepoxide 1 is an efficient precursor to a wide variety of optically pure syn and anti 1,3-diols. Reaction with excess nucleophile gives symmetric[GRAPHICS]anti 1,3-diols in good yield. Reaction with a slight excess of alkyllithium under Ganem's conditions gives the monoepoxides 5 in good yield. Addition of a second nucleophile to monoepoxide 5 gives asymmetric anti 1,3-diols. Mitsunobu inversion of monoepoxide 5 followed by addition of a second nucleophile gives syn 1,3-diols. Optically pure syn and anti 1,3-diols are available from diepoxide 1 in one to three steps and good overall yield.
  • Enantioselective Synthesis of (+)-Obolactone Based on a Symmetry-Breaking Wacker Monooxidation of a Diene
    作者:Patrick Walleser、Reinhard Brückner
    DOI:10.1021/ol400232m
    日期:2013.3.15
    A concise synthesis of the dihydro-alpha-pyrone/dihydro-gamma-pyrone natural product (+)-obolactone (13) is disclosed. The dienediol acetonide 23 (>= 97% ee) was obtained from 1,5-dichloropentane-2,4-dione in four steps. A Wacker monooxidation of 23 furnished the monoketone 24 in 64% yield. The OH group of the ensuing dihydro-gamma-pyrone 31 was esterified under Mitsunobu conditions with cinnamic acid (-> 80% inversion and 20% retention of configuration). A ring-closing metathesis formed the dihydro-alpha-pyrone moiety of the target in the terminating step.
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