2-甲硫基-4,5-嘧啶二甲酸二甲酯 | 132973-51-4

• 物质功能分类: 医药中间体 - 杂环化合物 - 嘧啶类化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 2-甲硫基-4,5-嘧啶二甲酸二甲酯
• 英文名称: dimethyl 2-thiomethylpyrimidine-5,6-dicarboxylate
• 英文别名: 4,5-dimethoxycarbonyl-2-methylsulfanylpyrimidine；Dimethyl 2-(Methylthio)-4,5-pyrimidinedicarboxylate；dimethyl 2-methylsulfanylpyrimidine-4,5-dicarboxylate
• CAS: 132973-51-4
• 化学式: C₉H₁₀N₂O₄S
• 分子量: 242.255
• InChiKey: RNPZWHNWKHSOFI-UHFFFAOYSA-N

物化性质

• 沸点：
  340.4±22.0 °C(Predicted)
• 密度：
  1.36±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  104
• 氢给体数：
  0
• 氢受体数：
  7

安全信息

• 海关编码：
  2933599090

反应信息

• 作为产物：
  描述：

  4-Dimethylamino-2-methylsulfanyl-4H-pyrimidine-1,5,6-tricarboxylic acid trimethyl ester 以 苯 为溶剂， 反应 24.0h， 生成 2-甲硫基-4,5-嘧啶二甲酸二甲酯
  参考文献：
  名称：

  1,3-Diaza-1,3-butadienes. Synthesis and Conversion into Pyrimidines by [4π + 2π] Cycloaddition with Electron Deficient Acetylenes. Synthetic Utility of 2-(Trichloromethyl)pyrimidines¹

  摘要：

  Methods have been devised to generate 1H-1,3-diaza-1,3-butadienes bearing a leaving group at position-4 in latent, masked, and unprotected forms. A hallmark of these azadienes is that they undergo thermal [4 pi + 2 pi] cycloaddition reactions with electron deficient acetylenes to give adducts which are aromatized to pyrimidine derivatives under the reaction conditions. Thus, 1-(methoxycarbonyl)-3-acylamidines 17 on beating in solution are converted in situ into the 1,3-diaza-1,3-dienes 18 and/or 19 which react with dimethyl acetylenedicarboxylate (DMAD) to produce the pyrimidines 20. The 1-Boc-1,3-diaza-1,3-dienes 24 are masked forms of the LH-dienes inasmuch as they react with DMAD under relatively mild conditions to give the dihydropyrimidine adducts 25, which are easily detectable by H-1 NMR spectroscopy, and which aromatize to pyrimidines 26 at higher temperatures. The 4-methylthio compounds 31 and 33, and the 2-(trichloromethyl) compounds 37, are isolable, relatively stable, 1H-1,3-diaza-1,3-butadienes, These easily prepared compounds react with electron deficient acetylenes under mild conditions to provide the pyrimidines 20, 34, and 38, respectively, in fair to excellent yields. The 2-(trichloromethyl)pyrimidines 38 are very useful precursors of a wide variety of other 2-substituted pyrimidines 46-52.

  DOI：

  10.1021/jo952106w

文献信息

• Cationic 1,3-diazadienes in annulation reactions. Synthesis of pyrimidine, thiadiazinedioxide and triazine derivatives
  作者：Cyrille Landreau、David Deniaud、Alain Reliquet、FranÇOise Reliquet、Jean Claude Meslin

  DOI：10.1002/jhet.5570380113

  日期：2001.1

  sulfenes, phenyl isocyanate or isothiocyanate and dimethyl acetylenedicarboxylate affording the corresponding dihydropyrimidinones 3, thiadiazinedioxides 5, triazinones 6, triazinethiones 7 and pyrimidines 9.

  由N'-硫代氨基甲酰基甲am 1制备的碘化三氮杂二叠氮化物2是杂环合成中的有效中间体。它们与烯酮，sulfenes，苯基异氰酸酯或异硫氰酸酯和二甲基乙炔得到相应的二氢嘧啶酮类反应3，thiadiazinedioxides 5，三嗪酮6，triazinethiones 7和嘧啶9。
• Synthesis and Diels-Alder reaction of stable aryl free 1,3-diazabutadiene
  作者：Ibrahim Ibnusaud、E.J. Padma Malar、Narayanaswamy Sundaram

  DOI：10.1016/s0040-4039(00)88566-4

  日期：1990.1
• 1,3-Diaza-1,3-butadienes. Synthesis and Conversion into Pyrimidines by [4π + 2π] Cycloaddition with Electron Deficient Acetylenes. Synthetic Utility of 2-(Trichloromethyl)pyrimidines¹
  作者：Angel Guzmán、Moisés Romero、Francisco X. Talamás、Rene Villena、Robert Greenhouse、Joseph M. Muchowski

  DOI：10.1021/jo952106w

  日期：1996.1.1

  Methods have been devised to generate 1H-1,3-diaza-1,3-butadienes bearing a leaving group at position-4 in latent, masked, and unprotected forms. A hallmark of these azadienes is that they undergo thermal [4 pi + 2 pi] cycloaddition reactions with electron deficient acetylenes to give adducts which are aromatized to pyrimidine derivatives under the reaction conditions. Thus, 1-(methoxycarbonyl)-3-acylamidines 17 on beating in solution are converted in situ into the 1,3-diaza-1,3-dienes 18 and/or 19 which react with dimethyl acetylenedicarboxylate (DMAD) to produce the pyrimidines 20. The 1-Boc-1,3-diaza-1,3-dienes 24 are masked forms of the LH-dienes inasmuch as they react with DMAD under relatively mild conditions to give the dihydropyrimidine adducts 25, which are easily detectable by H-1 NMR spectroscopy, and which aromatize to pyrimidines 26 at higher temperatures. The 4-methylthio compounds 31 and 33, and the 2-(trichloromethyl) compounds 37, are isolable, relatively stable, 1H-1,3-diaza-1,3-butadienes, These easily prepared compounds react with electron deficient acetylenes under mild conditions to provide the pyrimidines 20, 34, and 38, respectively, in fair to excellent yields. The 2-(trichloromethyl)pyrimidines 38 are very useful precursors of a wide variety of other 2-substituted pyrimidines 46-52.