1,3-Dimethyl-5-thiophen-3-ylmethyl-pyrimidine-2,4,6-trione

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 1,3-Dimethyl-5-thiophen-3-ylmethyl-pyrimidine-2,4,6-trione
• 英文别名: 1,3-dimethyl-5-(thiophen-3-ylmethyl)-1,3-diazinane-2,4,6-trione
• 化学式: C₁₁H₁₂N₂O₃S
• 分子量: 252.294
• InChiKey: JESIRJGIXICFGL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  85.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  聚合甲醛 、 cytisine 、 1,3-Dimethyl-5-thiophen-3-ylmethyl-pyrimidine-2,4,6-trione 以 水 为溶剂， 反应 1.0h， 以84%的产率得到1,3-dimethyl-5-[[(1R,9S)-6-oxo-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-11-yl]methyl]-5-(thiophen-3-ylmethyl)-1,3-diazinane-2,4,6-trione
  参考文献：
  名称：

  Chemical modification of plant alkaloids. I. Aminomethylation of barbituric acid derivatives by cytisine

  摘要：

  Reaction of cytisine with 1-mono- and 1,3-disubstituted 5-arylmethylbarbituric acids in the presence of formaldehyde results in aminomethylation of C-5 to form the corresponding 5-cytisylmethylbarbituric acids. The structures of the products are found using PMR spectroscopy mid mass spectrometry. 1-Phenyl-5-(2,4-dimethoxybenzyl)-5-cytisylmethylbarbituric acid is obtained as a mixture of two steroisomers in an approximately 2:1 ratio.

  DOI：

  10.1007/bf02236429
• 作为产物：
  描述：

  1,3-dimethyl-5-(thiophen-3-ylmethylene)pyrimidine-2,4,6(1H,3H,5H)-trione 在 sodium tetrahydroborate 作用下， 以 水 、 异丙醇 为溶剂， 以75%的产率得到1,3-Dimethyl-5-thiophen-3-ylmethyl-pyrimidine-2,4,6-trione
  参考文献：
  名称：

  Chemical modification of plant alkaloids. I. Aminomethylation of barbituric acid derivatives by cytisine

  摘要：

  Reaction of cytisine with 1-mono- and 1,3-disubstituted 5-arylmethylbarbituric acids in the presence of formaldehyde results in aminomethylation of C-5 to form the corresponding 5-cytisylmethylbarbituric acids. The structures of the products are found using PMR spectroscopy mid mass spectrometry. 1-Phenyl-5-(2,4-dimethoxybenzyl)-5-cytisylmethylbarbituric acid is obtained as a mixture of two steroisomers in an approximately 2:1 ratio.

  DOI：

  10.1007/bf02236429

文献信息

• Iridium supported on porous polypyridine-oxadiazole as high-activity and recyclable catalyst for the borrowing hydrogen reaction
  作者：Jiahao Li、Anruo Mao、Wei Yao、Haiyan Zhu、Dawei Wang

  DOI：10.1039/d2gc00190j

  日期：——

  HRTEM, SEM, and XPS, and revealed high catalytic activity for the reaction of dimethyl-6-aminouracil with benzyl alcohols, 1,3-dimethylbarbituric acid with benzyl alcohols and 2-aminobenzylamine and benzyl alcohols through dehydrogenation and the borrowing hydrogen strategy with alcohol or water as the solvent. In addition, this PPO-Ir catalyst could be recycled and reused without a manifest loss of

  多相催化剂的均质化是一个有价值和有趣的研究课题。以吡啶-恶二唑和1-碘-4-乙烯基苯为原料，设计并合成了多孔聚吡啶-恶二唑（PPO）作为载体和配体。铱通过配位键固定在这种聚合物（配体）的骨架上。这种多孔聚吡啶-恶二唑铱催化剂 (PPO-Ir) 通过 XRD、BET、EDS、HRTEM、SEM 和 XPS 清楚地表征，并显示出对二甲基-6-氨基尿嘧啶与苯甲醇 1,3 反应的高催化活性-二甲基巴比妥酸与苄醇和2-氨基苄胺与苄醇通过脱氢和借氢策略以醇或水为溶剂。此外，这种 PPO-Ir 催化剂可以回收再利用，至少 5 次没有明显的催化活性损失，并显示出潜在的应用价值。进一步进行机制探索以阐明该PPO-Ir和这些转变。