摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

5-(tert-butyl)-3-[(2-hydroxyethyl)thiomethyl]pyrazole | 493038-66-7

中文名称
——
中文别名
——
英文名称
5-(tert-butyl)-3-[(2-hydroxyethyl)thiomethyl]pyrazole
英文别名
2-[(3-tert-butyl-1H-pyrazol-5-yl)methylsulfanyl]ethanol
5-(tert-butyl)-3-[(2-hydroxyethyl)thiomethyl]pyrazole化学式
CAS
493038-66-7
化学式
C10H18N2OS
mdl
——
分子量
214.332
InChiKey
SVJNFTTVKVTMNN-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:
    85.7-86.9 °C
  • 沸点:
    384.9±32.0 °C(Predicted)
  • 密度:
    1.137±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.7
  • 重原子数:
    14
  • 可旋转键数:
    5
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.7
  • 拓扑面积:
    74.2
  • 氢给体数:
    2
  • 氢受体数:
    3

反应信息

  • 作为反应物:
    描述:
    双(乙腈)氯化钯(II)5-(tert-butyl)-3-[(2-hydroxyethyl)thiomethyl]pyrazole甲醇 为溶剂, 以80%的产率得到2-[(5-tert-butyl-1H-pyrazol-3-yl)methylsulfanyl]ethanol;palladium(2+);dichloride
    参考文献:
    名称:
    Substituent Control of Hydrogen Bonding in Palladium(II)−Pyrazole Complexes
    摘要:
    Inter- and intramolecular hydrogen bonding of an N-H group in pyrazole complexes was studied using ligands with two different groups at pyrazole C-3 and C-5. At C-5, groups such as methyl, i-propyl, phenyl, or tert-butyl were present. At C-3, side chains L-CH2- and L-CH2CH2- (L = thioether or phosphine) ensured formation of chelates to a cis-dichloropalladium(II) fragment through side-chain atom L and the pyrazole nitrogen closest to the side chain. The significance of the ligands is that by placing a ligating side chain on a ring carbon (C-3), rather than on a ring nitrogen, the ring nitrogen not bound to the metal and its attached proton are available for hydrogen bonding. As desired, seven chelate complexes examined by X-ray diffraction all showed intramolecular hydrogen bonding between the pyrazole N-H and a chloride ligand in the cis position. In addition, however, intermolecular hydrogen bonding could be controlled by the substituent at C-5: complexes with either a methyl at C-5 or no substituent there showed significant intermolecular hydrogen bonding interactions, which were completely avoided by placing a tert-butyl group at C-5. The acidity of two complexes in acetonitrile solutions was estimated to be closer to that of pyridinium ion than those of imidazolium or triethylammonium ions.
    DOI:
    10.1021/ic026104n
  • 作为产物:
    参考文献:
    名称:
    在C3和C5处具有不同官能化取代基的吡唑的新的灵活合成方法。
    摘要:
    呈现了具有连接至碳3的官能化侧链和连接至碳5的变化的烷基和芳基取代基的吡唑的合成。此处报道了在C5处安装R =甲基,异丙基,叔丁基,金刚烷基或苯基,方法是首先将受保护的炔醇与酰氯RCOCl偶联,形成炔基酮,然后与肼反应形成吡唑核。醇脱保护并转化为氯化物,得到5-取代的3-(氯甲基)-或3-(2-氯乙基)吡唑。此序列可以在2 d内以30 g的规模完成,并具有出色的总产量。通过亲核取代反应,氯化物是其他多官能吡唑的有用前体。在本文的工作中,制备了在C3上具有侧链LCH(2)-和LCH(2)CH(2)-的衍生物(L =硫醚或膦)作为配体。
    DOI:
    10.1021/jo026083e
点击查看最新优质反应信息