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

3-hydroxy-2-methyl-4H-thiopyran-4-thione | 881205-09-0

中文名称
——
中文别名
——
英文名称
3-hydroxy-2-methyl-4H-thiopyran-4-thione
英文别名
dithiomaltol;H(3-hydroxy-2-methyl-thiopyran-4-thionate);Httma;3-Hydroxy-2-methylthiopyran-4-thione
3-hydroxy-2-methyl-4H-thiopyran-4-thione化学式
CAS
881205-09-0
化学式
C6H6OS2
mdl
——
分子量
158.245
InChiKey
QQIPIGKDHSSRLG-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

  • 沸点:
    224.3±50.0 °C(Predicted)
  • 密度:
    1.40±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.5
  • 重原子数:
    9
  • 可旋转键数:
    0
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.17
  • 拓扑面积:
    77.6
  • 氢给体数:
    1
  • 氢受体数:
    3

反应信息

  • 作为反应物:
    描述:
    3-hydroxy-2-methyl-4H-thiopyran-4-thionesodium acetate乙酸酐三乙胺三苯基膦 作用下, 以 二氯甲烷 为溶剂, 反应 0.5h, 生成 3,7-dimethyl-2H-thiopyrano[3,4-b]furan-2-one
    参考文献:
    名称:
    作为潜在神经保护剂的硫卡里金生物等排体的合成
    摘要:
    唯一已知的含硫 karrikin,3-methyl-2 H - thiopyrano[3,4- b ]furan-2-one,最近已被确定为一种极其有效的神经保护性丁烯内酯。在此,我们报告了该化合物的靶向合成以及针对通过氧与硫的生物等排交换衍生自 2 H-呋喃[2,3 - c ]吡喃-2-酮(karrikins)的一类化合物的新合成方案。特别是,我们提出了对 karrikins 生物等排体的合成程序,其中一个或两个硫杂原子掺入核心骨架中,并评估了它们在抑制乙酰胆碱酯酶方面的生物活性。
    DOI:
    10.3762/bjoc.18.57
  • 作为产物:
    描述:
    麦芽醇劳森试剂 作用下, 以 1,4-二氧六环 为溶剂, 反应 1.0h, 以39%的产率得到3-hydroxy-2-methyl-4H-thiopyran-4-thione
    参考文献:
    名称:
    A novel heterocyclic atom exchange reaction with Lawesson's reagent: a one-pot synthesis of dithiomaltol
    摘要:
    麦芽酚与 Lawesson 试剂发生单锅反应,通过不寻常的杂环原子交换(HCAE)反应生成二硫代麦芽酚(一种硫代吡喃-4-硫酮);只有带有质子或脂肪族取代基的吡喃酮才能发生 HCAE 取代反应。
    DOI:
    10.1039/b511966a
点击查看最新优质反应信息

文献信息

  • Ligand-based photooxidations of dithiomaltolato complexes of Ru(<scp>ii</scp>) and Zn(<scp>ii</scp>): photolytic CH activation and evidence of singlet oxygen generation and quenching
    作者:Britain Bruner、Malin Backlund Walker、Mukunda M. Ghimire、Dong Zhang、Matthias Selke、Kevin K. Klausmeyer、Mohammad A. Omary、Patrick J. Farmer
    DOI:10.1039/c4dt00961d
    日期:——
    formed upon photolysis of 1 in presence of mild oxidants such as methyl viologen, [Ru(NH3)6]3+ and [Co(NH3)5Cl]2+, which do not oxidize 1 in the dark. This reactivity is engendered only upon excitation into an absorption band attributed to the ttma ligand. Analogous experiments with the homoleptic Zn(ttma)2, 4, also result in reduction of electron acceptors upon excitation of the ttma absorption band. Complexes
    复合物 [Ru(bpy) 2 (ttma)] + (bpy = 2,2'-bipyridine; ttma = 3-hydroxy-2-methyl-thiopyran-4-thionate, 1,先前已被证明经历了不寻常的 C外球氧化时二麦芽糖醇配体的 –H 活化。反应生成了醇和醛产物2和3,从侧甲基的 C-H 氧化。在本报告中,我们证明了相同的产物在1 的光解时形成在温和的氧化剂如甲基紫精、[Ru(NH 3 ) 6 ] 3+和 [Co(NH 3 ) 5 Cl] 2+ 存在下,它们不会氧化1在黑暗中。这种反应性仅在激发进入归因于 ttma 配体的吸收带时产生。用均质 Zn(ttma) 2 , 4 进行的类似实验也导致电子受体在 ttma 吸收带激发时减少。配合物1和4表现出短寿命的可见荧光和长寿命的近红外光带。单线态氧在1或4 的有氧激发期间产生和淬灭,但不参与 C-H 活化过程。
  • Unexpected C−H Activation of Ru(II)−Dithiomaltol Complexes upon Oxidation
    作者:Malin Backlund、Joseph Ziller、Patrick J. Farmer
    DOI:10.1021/ic7021962
    日期:2008.4.1
    Thione-substituted derivatives of maltol are of interest in several applications of metal-based drugs. In order to investigate the effect of the oxygenation on such thione chelates, Ru complexes of 3-hydroxy-2-methyl-4-thiopyrone (thiomaltol or Htma) and 3-hydroxy-2-methyl-4H-thiopyran-4-thione (dithiomaltol or Httma), [Ru(bPY)(2)(tma)](+), 1, and [Ru(bPY)(2)(ttma)](+), 2, were synthesized as diamagnetic PF6- salts. Peroxidation of 2 unexpectedly generated products of C-H activation at its pendant methyl group; an air-stable aldehyde [Ru(bPY)(2)(ttma-aldehyde)](+), 4, was the major product. In addition, an intermediate oxidation product [Ru(bPY)(2)(ttma-alcohol)](PF6), 3, was characterized. Both 3 and 4 are also formed by reaction of 2 with outersphere oxidants (e.g., Na2IrCl6) and by bulk electrolysis under anaerobic conditions. Similar oxidations of the analogous [Ru(bPY)(2)(ettma)](+), 2', complex (3-hydroxy-2-ethyl-4H-thiopyran-4-thione; ethyl dithiomaltol or Hettma) formed the corresponding ketone, [Ru(bPY)(2)(ettma-ketone)](PF6), 4', by oxidation at the same position adjacent to the conjugated ring. The structures of the aldehyde 4 and starting materials 1 and 2 have been confirmed by X-ray crystallography, and all complexes have been characterized by UV-vis, H-1 NMR, and IR spectroscopies. Initial mechanistic investigations are discussed.
查看更多