6-(4-氯苯基)-3,4-二甲基-2-氧代-1,6-二氢嘧啶-5-羧酸乙酯 | 302821-62-1

• 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: 6-(4-氯苯基)-3,4-二甲基-2-氧代-1,6-二氢嘧啶-5-羧酸乙酯
• 中文别名: 4-（4-氯苯基）-1,6-二甲基-2-氧代1,2,3,4-四氢-5-嘧啶甲酸乙酯
• 英文名称: ethyl 4-(4-chlorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
• 英文别名: Ethyl 4-(4-chlorophenyl)-1,6-dimethyl-2-oxo-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate；ethyl 6-(4-chlorophenyl)-3,4-dimethyl-2-oxo-1,6-dihydropyrimidine-5-carboxylate
• CAS: 302821-62-1
• 化学式: C₁₅H₁₇ClN₂O₃
• 分子量: 308.765
• InChiKey: XHMRHHURCAQZLY-UHFFFAOYSA-N

物化性质

• 熔点：
  124-126°
• 沸点：
  487.3±45.0 °C(Predicted)
• 密度：
  1.237±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  58.6
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 危险等级：
  IRRITANT
• 海关编码：
  2933599090

反应信息

• 作为反应物：
  描述：

  6-(4-氯苯基)-3,4-二甲基-2-氧代-1,6-二氢嘧啶-5-羧酸乙酯 在 potassium peroxomonosulphate 、 cobalt(II) nitrate 作用下， 以 水 、 乙腈 为溶剂， 反应 4.0h， 以81%的产率得到ethyl 1-methyl-4-(4-chlorophenyl)-pyrimidin-2(1H)-one-5-carboxylate
  参考文献：
  名称：

  An unusual oxidation–dealkylation of 3,4-dihydropyrimidin-2(1H)-ones mediated by Co(NO3)2·6H2O/K2S2O8 in aqueous acetonitrile

  摘要：

  4-Aryl-6-methyl-3,4-dihydropyrimidin-2(1H)-one (DHPM) scaffolds of Biginelli type were oxidized using Co(II)/S2O82- and the reaction afforded 6-unsubstituted pyrimidin-2(1H)-ones through an unprecedented dealkylation process. 4-Alkyl DHPMs under similar conditions afforded yet another unusual product, ethyl tetrahydropyrimidin-2,4(1H,3H)-dione-5-carboxylate. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2006.11.010
• 作为产物：
  描述：

  4-(4-氯苯基)-6-甲基-2-氧代-1,2,3,4-四氢嘧啶-5-羧酸乙酯 、 碘甲烷 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 以92%的产率得到6-(4-氯苯基)-3,4-二甲基-2-氧代-1,6-二氢嘧啶-5-羧酸乙酯
  参考文献：
  名称：

  Regioselective N1-alkylation of 3,4-dihydropyrimidine-2(1H)-ones: Screening of their biological activities against Ca2+-ATPase

  摘要：

  A regioselective N1-alkylation of 3,4-dihydropyrimidin-2(1H)-ones using a very efficient mild base Cs2CO3 and alkyl halides at room temperature has been reported. The selectivity of this methodology is excellent and the yields of the alkylated products are very good. Furthermore inhibitory action of both the 3,4-dihydropyrimidin-2(1H)-ones and the N1-alkylated derivatives were tested on Ca2+-ATPase, which revealed that the parent compounds can act as Ca2+-ATPase inhibitors whereas the N1-alkylated derivatives are inefficient for this purpose. (C) 2012 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2012.04.043

文献信息

• The Thorpe–Ziegler-type reaction of 3-cyanopyridine-2(1H)-thiones with Biginelli 6-bromomethyl-3,4-dihydropyrimidin-2(1H)-ones: cascade assembling of tetra- and pentacyclic heterocyclic scaffolds
  作者：Iryna O. Lebedyeva、Victor V. Dotsenko、Vladimir V. Turovtsev、Sergey G. Krivokolysko、V'yacheslav M. Povstyanoy、Mikhaylo V. Povstyanoy

  DOI：10.1016/j.tet.2012.09.041

  日期：2012.11

  3-Cyanopyridine-2(1H)-thiones have been shown to react with Biginelli-type ethyl 4-aryl-6-(bromomethyl)-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates upon heating in DMF giving rise to ethyl 4-aryl-6-[(3-cyanopyridin-2-yl)thio]methyl}-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylates. The latter upon treatment with an excess of NaH or t-BuOK in boiling DMF undergo a tandem Thorpe–Ziegler-type

  已经显示3-氰基吡啶-2（1 H）-硫酮在加热时与Biginelli型4-芳基-6-（溴甲基）-2-氧-1,2,3,4-四氢嘧啶-5-羧酸乙酯反应在DMF中，生成4-芳基-6-[（（3-氰基吡啶-2-基）硫基]甲基] -2-氧代-1,2,3,4-四氢嘧啶-5-羧酸乙酯。后者在沸腾的DMF中用过量的NaH或t- BuOK处理后，进行串联的Thorpe–Ziegler型杂环化反应，得到吡啶并[3″，2″：4'，5'] thieno [2'，3'：5 ，6]吡啶[4,3- d ]嘧啶衍生物，收率高。测试所选化合物的抗菌和抗真菌活性。
• N-Substituted Ureas and Thioureas in Biginelli Reaction Promoted by Chlorotrimethylsilane: Convenient Synthesis of <i>N</i>1-Alkyl-, <i>N</i>1-Aryl-, and <i>N</i>1,<i>N</i>3-Dialkyl-3,4-Dihydropyrimidin-2(1<i>H</i>)-(thi)ones
  作者：Dmitriy Volochnyuk、Sergey Ryabukhin、Andrey Plaskon、Eugeniy Ostapchuk、Andrey Tolmachev

  DOI：10.1055/s-2007-965881

  日期：2007.2

  The classical Biginelli reaction has been extended by the use of N-substituted ureas and thioureas. A set of N1-alkyl-, N1-aryl-, and N1,N3-dialkyl-3,4-dihydropyrimidin-2(1H)-(thi)ones was readily prepared in excellent yield when chlorotrimethylsilane in N,N-dimethylformamide was used as promoter and water scavenger.

  经典的Biginelli反应已经通过使用N取代的尿素和硫尿素得到了扩展。当在N,N-二甲基甲酰胺中使用氯三甲基硅烷作为促进剂和脱水剂时，能够容易地以优异的产率合成一系列N1-烷基、N1-芳基和N1,N3-双烷基-3,4-二氢嘧啶-2(1H)-(硫)酮。
• Cerous <i>p</i>-Toluenesulfonate as an Efficient and Recyclable Catalyst for the Synthesis of <i>N</i>1-Substituted-4-aryl-3,4-dihydropyrimidin-2(1<i>H</i>)-ones
  作者：Min Wang、Hongxu Jiang、Shun Zhang、He Pan

  DOI：10.1080/00304948.2018.1525672

  日期：2018.9.3

  agents and a1aantagonists. Since the first straightforward synthetic method for DHPMs was reported by Biginelli in 1893, many improved protocols were developed. Not only new catalysts and reaction conditions were explored but also some novel reactive species were formed. The scope of the Biginelli reaction extended to various building blocks, so a large number of multifunctional pyrimidine derivatives with

  由于杂环上的六个功能点，二氢嘧啶酮 (DHPM) 具有广泛的合成重要性。DHPMs 还具有多种生物和药物活性，如钙通道阻滞剂、抗高血压剂和 a1a 拮抗剂。自从 1893 年 Biginelli 报告了第一个直接的 DHPM 合成方法以来，开发了许多改进的协议。不仅探索了新的催化剂和反应条件，而且形成了一些新的反应物种。Biginelli 反应的范围扩展到各种构建模块，因此获得了大量具有重要生物学特性的多功能嘧啶衍生物。其中，N1 取代的 DHPMs 也具有重要的生物活性和区域选择性。然而，关于 DHPM 的 N1-烷基化的参考文献很少，而且它们在产率、有毒试剂和反应条件方面都有局限性。尿素上的取代基主要限于 Me 和 Et。这鼓励我们开发一种新颖有效的方法来合成更多 N1 取代的 DHPM。作为耐水路易斯酸催化剂，金属磺酸盐被认为在合成化学中具有广泛的应用前景。它们高效、无毒并可重复使用。作为我们在金属磺酸盐催化的
• Solvent-Free Ball-Milling Biginelli Reaction by Subcomponent Synthesis
  作者：Prasit Kumar Sahoo、Anima Bose、Prasenjit Mal

  DOI：10.1002/ejoc.201501039

  日期：2015.11

  here an understanding of systems chemistry on small molecules through covalent mechanochemistry. As a proof-of-concept, the multicomponent Biginelli reaction by subcomponent synthesis was considered as a model system. Reactions were performed under solvent-free, metal-free, mechanochemical (ball milling) and ambient laboratory conditions. Br+-catalyzed oxidation of benzyl alcohols led to the product

  我们在这里报告通过共价机械化学对小分子的系统化学的理解。作为概念验证，通过子组分合成的多组分 Biginelli 反应被认为是一个模型系统。反应在无溶剂、无金属、机械化学（球磨）和环境实验室条件下进行。Br+催化苯甲醇氧化产生苯甲醛产物和副产物H+，它们分别作为组分和催化剂进一步促进，在同一反应釜内级联转化为二氢嘧啶酮。值得注意的是，在溶液中，反应体系在室温下即使在 24 小时后也无法重现。
• Regioselective dehydrogenation of 3,4-dihydropyrimidin-2(1H)-ones mediated by ceric ammonium nitrate
  作者：P. Shanmugam、P.T. Perumal

  DOI：10.1016/j.tet.2006.07.063

  日期：2006.10

  Ceric ammonium nitrate (CAN) has been explored for the regioselective oxidation of 3,4-dihydropyrimidin-2(1H)-ones (DHPMs). Interestingly, we obtained ethyl 2,4-dioxo-6-phenyl-tetrahydropyrimidin-5-carboxylates as the major products during the oxidation of DHPMs by CAN/AcOH at 80 degrees C. The reaction afforded a mixture of products while employing CAN in organic solvents without additives. However, the regioselective dehydrogenated product, ethyl 6-methyl-4-aryl(alkyl)-pyrimidin-2(1H)-one-5-carboxylate was obtained by performing the reaction with NaHCO3. The single crystal X-ray crystallography of ethyl 6-methyl-4-(2-phenyl)-pyrimidin-2(1H)-one-5-carboxylate revealed that the oxidized product existed in amidic form rather than aromatized enol form of pyrimidines. The efficiency of the present protocol enabled the synthesis of structurally diverse pyrimidines in moderate to good yields under milder reaction conditions. (c) 2006 Elsevier Ltd. All rights reserved.