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(S)-8-(trimethylsilyl)octa-2,7-diyne-1,5-diol | 502495-27-4

中文名称
——
中文别名
——
英文名称
(S)-8-(trimethylsilyl)octa-2,7-diyne-1,5-diol
英文别名
——
(S)-8-(trimethylsilyl)octa-2,7-diyne-1,5-diol化学式
CAS
502495-27-4
化学式
C11H18O2Si
mdl
——
分子量
210.348
InChiKey
XIPNKVDECXSYDI-NSHDSACASA-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:
    316.1±37.0 °C(Predicted)
  • 密度:
    1.012±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.0
  • 重原子数:
    14.0
  • 可旋转键数:
    2.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.64
  • 拓扑面积:
    40.46
  • 氢给体数:
    2.0
  • 氢受体数:
    2.0

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    参考文献:
    名称:
    Suzuki-Miyaura偶联有效聚合合成1alpha,25-dihydroxyvitamin D3及其类似物。
    摘要:
    [反应:请参见文本]通过A环中间体1的Suzuki-Miyaura偶联合成了1alpha,25-二羟基维生素D(3),该中间体是从容易获得的1,7-烯2与相应的硼酸酯化合物有效制备的C,D环部分。该方法适用于制备1α,25-二羟基维生素D(3)的des-C,D类似物。
    DOI:
    10.1021/ol0274007
  • 作为产物:
    描述:
    三乙基硅基丙炔醚Trimethyl-((R)-3-oxiranyl-prop-1-ynyl)-silane正丁基锂三氟化硼乙醚盐酸 作用下, 以 四氢呋喃正己烷 为溶剂, 反应 2.0h, 以82%的产率得到(S)-8-(trimethylsilyl)octa-2,7-diyne-1,5-diol
    参考文献:
    名称:
    New Convergent Synthesis of 1α,25-Dihydroxyvitamin D3 and Its Analogues by Suzuki−Miyaura Coupling between A-Ring and C,D-Ring Parts
    摘要:
    A new convergent method for the synthesis of 1alpha,25-dihydroxyvitamin D-3 and its analogues has been developed that involves efficient preparation of the A-ring part la, (Z)-(3S,5R)-1-bromomethylene-3,5-bis(tert-butyldimethylsilyloxy)-2-methylenecyclohexane, starting from epichlorohydrin (4) and its Suzuki-Miyaura coupling reaction with the C,D-ring part 12. Thus, (R)-4 was converted to (3S,5R)-5-(tert-butyldimethylsilyloxy)-8-(trimethylsilyl)-oct-1-en-7-yn-3-ol (3a) through a ten-step reaction sequence in 49% overall yield. Compound 3a thus obtained was treated with a Ti(O-i-Pr)(4)/2 i-PrMgCl reagent and then with NBS to afford (Z)-(1S,2S,5R)-2-bromomethyl-3-[bromo(trimethylsilyl)methylene]-5-(tert-butyldimethylsilyloxy)cyclohexanol (10a) in 51% yield, from which la was obtained in 87% yield by sequential treatment with TBSCl/imidazole, DBU, and Cs2CO3. The resulting A-ring intermediate la was reacted with alkenylboronate 12 in the presence of a PdCl2(dppf) catalyst to furnish 1alpha,25-dihydroxyvitamin D-3 in 82% yield after protodesilylation. Similarly, all of the other three possible stereoisomers of A-ring parts 1b, 1c, and 1d were prepared, from which 1-epi-, 3-epi-, and 1,3-di-epi-1alpha,25-dihydroxyvitamin D-3 were synthesized by coupling with 12 in excellent yield, respectively. Starting from la and 1c, des-C,D-I(x,25-dihydroxyvitamin D-3 analogues, retiferol 13 and its 3-epi derivative, were also prepared, respectively.
    DOI:
    10.1021/jo0353435
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