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(+)-(S)-5-methyl-1-heptyne | 2695-50-3

中文名称
——
中文别名
——
英文名称
(+)-(S)-5-methyl-1-heptyne
英文别名
(S)-(+)-5-methyl-1-heptyne;(S)-5-methyl-hept-1-yne;(+)-(S)-5-Methyl-hept-1-in;(5S)-5-methylhept-1-yne
(+)-(S)-5-methyl-1-heptyne化学式
CAS
2695-50-3
化学式
C8H14
mdl
——
分子量
110.199
InChiKey
XZAXKNMXYFKSKY-QMMMGPOBSA-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):
    3.2
  • 重原子数:
    8
  • 可旋转键数:
    3
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.75
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

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文献信息

  • Total Synthesis of the Neuronal Cell-Protecting Carbazole Alkaloids Carbazomadurin A and (<i>S</i>)-(+)-Carbazomadurin B
    作者:Yuhzo Hieda、Tominari Choshi、Haruto Fujioka、Satoshi Hibino
    DOI:10.1002/ejoc.201301059
    日期:2013.11
    The total syntheses of the neuronal cell-protecting carbazole alkaloids carbazomadurin A and (S)-(+)-carbazomadurin B were achieved. The key step of the synthesis of the polysubstituted carbazole rings included an allene-mediated electrocyclic reaction of the 6π-electron system that involved the indole 2,3-bond. The cleavage of the alkoxy groups of the resulting 3-ethoxy-8-isopropoxycarbazole successfully
    实现了神经元细胞保护咔唑生物碱carBAzomadurin A和(S)-(+)-carBAzomadurin B的全合成。合成多取代咔唑环的关键步骤包括涉及吲哚 2,3-键的 6π 电子系统的丙二烯介导的电环反应。所得 3-乙氧基-8-异丙氧基咔唑的烷氧基裂解成功得到 3,8-二羟基咔唑,将其转化为 3,8-双(OSEM)-咔唑SEM = 2-三甲基甲硅烷基乙氧基甲基)。3,8-双(OSEM)-咔唑与相应的烯基频哪醇硼酸盐的 Suzuki-Miyaura 交叉偶联反应得到 1-烯基咔唑,用四正丁基氟化铵 (TBAF) 处理,然后用 NaBH4 还原分别提供carBAzomadurin A和(S)-(+)-carBAzomadurin B。
  • Silylformylation of Chiral 1-Alkynes, Catalysed by Solvated Rhodium Atoms
    作者:Laura Antonella Aronica、Silvia Terreni、Anna Maria Caporusso、Piero Salvadori
    DOI:10.1002/1099-0690(200111)2001:22<4321::aid-ejoc4321>3.0.co;2-t
    日期:2001.11
    Solvated rhodium atoms, prepared by the metal vapour synthesis technique, promote the silylformylaton reaction of variously substituted alkynes (RRCH)-R-1-C-2(CH2)(n)C equivalent to CH, with catalytic activities comparable with and even higher than more common species such as Rh-4(CO)(12). Z-Silylalkenals are exclusively formed in high yields (60-95%) indicating syn addition both of CO and of the silane (Me2PhSiH) to the triple bond, The chemoselectivity of the process (silylformylation vs. hydrosilylation) is highly affected by the amount of catalyst employed (mmol of Rh species with respect to the alkyne reagent), by the steric requirements of the acetylenic substrates and by the hydrosilane/alkyne molar ratio. When optically active acetylenes are treated in the presence of Me2PhSiH under carbon monoxide pressure, the silylformylation reaction occurs with total retention of stereochemistry of the stereogenic centre, even if it is at the alpha -position of the unsaturated moiety, to afford enantiomerically enriched beta -silylalkenals.
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