1,3-dimethyl-5-(3,4-dimethoxybenzyl)lbarbituric acid | 321657-26-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1,3-dimethyl-5-(3,4-dimethoxybenzyl)lbarbituric acid
• 英文别名: 5-(3,4-dimethoxybenzyl)-1,3-dimethylbarbituric acid；5-(3,4-dimethoxybenzyl)-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-trione；5-[(3,4-dimethoxyphenyl)methyl]-1,3-dimethyl-1,3-diazinane-2,4,6-trione
• CAS: 321657-26-5
• 化学式: C₁₅H₁₈N₂O₅
• mdl: MFCD02019271
• 分子量: 306.318
• InChiKey: VSEJQOGLWBJRTG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  76.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  聚合甲醛 、 cytisine 、 1,3-dimethyl-5-(3,4-dimethoxybenzyl)lbarbituric acid 以 水 为溶剂， 反应 1.0h， 以76%的产率得到
  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：

  5-(3,4-dimethoxybenzylidene)-1,3-dimethylpyrimidine-2,4,6-trione 在 sodium tetrahydroborate 作用下， 以 水 、 异丙醇 为溶剂， 以90%的产率得到1,3-dimethyl-5-(3,4-dimethoxybenzyl)lbarbituric acid
  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

• Pd/C-Catalyzed Alkylation of Heterocyclic Nucleophiles with Alcohols through the “Borrowing Hydrogen” Process
  作者：Anggi Eka Putra、Yohei Oe、Tetsuo Ohta

  DOI：10.1002/ejoc.201501030

  日期：2015.12

  The alkylation of heterocyclic compounds is important for the synthesis of various biologically active compounds. In this paper, we present the development of a Pd/C-catalyzed alkylation of heterocyclic compounds using alcohols as the alkylating agents. This method gives the corresponding alkylated heterocyclic compounds in high yields (up to 99 %). The commercially available catalyst can be recovered

  杂环化合物的烷基化对于合成各种生物活性化合物很重要。在本文中，我们介绍了使用醇作为烷基化剂的 Pd/C 催化的杂环化合物烷基化的开发。该方法以高产率（高达 99%）得到相应的烷基化杂环化合物。市售催化剂可回收重复使用5次，催化效率没有明显损失，转化数（TON）高达900。此外，反应可以扩大规模。
• Sequential one-pot bimetallic Ir(<scp>iii</scp>)/Pd(<scp>0</scp>) catalysed mono-/bis-alkylation and spirocyclisation processes of 1,3-dimethylbarbituric acid and allenes
  作者：Christian Löfberg、Ronald Grigg、Ann Keep、Andrew Derrick、Visuvanathar Sridharan、Colin Kilner

  DOI：10.1039/b614098j

  日期：——

  Microwave assisted indirect functionalization of alcohols with 1,3-dimethylbarbituric acid followed by spirocyclisation employing a sequential one-pot Ir(III)/Pd(0) catalysed process, involving the formation of three new C–C bonds, one spirocyclic ring and one di- or tri-substituted exocyclic alkene, is described.

  微波辅助下，通过一步连续的Ir(III)/Pd(0)催化反应，利用1,3-二甲基巴比妥酸对醇进行间接官能团化，随后进行螺环化反应，涉及形成三个新的C–C键、一个螺环结构以及一个二取代或三取代的环外烯烃，这一过程得以描述。
• Ruthenium-catalyzed selective synthesis of monoalkylated barbituric acids through “borrowing hydrogen” methodology
  作者：Anggi Eka Putra、Yohei Oe、Tetsuo Ohta

  DOI：10.1016/j.tetlet.2017.01.070

  日期：2017.3

  An environmentally benign alkylation of barbituric acids via “borrowing hydrogen” process with ruthenium catalysis has been established. The corresponding 5-(alkyl)barubituric acids were obtained in good to excellent yields with low catalyst loading. Various substrates including aliphatic alcohols were tolerated in the present catalytic system. A novel method for construction of barbituric acid-fused

  已经建立了通过“借入氢”过程和钌催化对巴比妥酸进行无害环境的烷基化反应。以良好的至优异的产率和较低的催化剂负载量获得了相应的5-（烷基）Barubituric酸。在本催化体系中，包括脂肪族醇在内的各种底物是可以容忍的。还证明了一种新的构建巴比妥酸稠合的苯并吡喃衍生物的方法。
• Chemical modification of plant alkaloids. I. Aminomethylation of barbituric acid derivatives by cytisine
  作者：K. A. Krasnov、V. G. Kartsev、A. S. Gorovoi

  DOI：10.1007/bf02236429

  日期：2000.3

  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.