4-(2,4-dichlorophenyl)-3,4-dihydro-6-phenylpyrimidin-2(1H)-one

• 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: 4-(2,4-dichlorophenyl)-3,4-dihydro-6-phenylpyrimidin-2(1H)-one
• 英文别名: 4-(2,4-Dichlorophenyl)-3,4-dihydro-6-phenylpyrimidin-2(1h)-one；4-(2,4-dichlorophenyl)-6-phenyl-3,4-dihydro-1H-pyrimidin-2-one
• 化学式: C₁₆H₁₂Cl₂N₂O
• 分子量: 319.19
• InChiKey: BHEWDANADGEISE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  苯甲醛 、 尿素 、 2,4-二氯苯乙酮 在 MnO₂ supported on multiwalled carbon nanocomposites 作用下， 以 neat (no solvent) 为溶剂， 反应 0.22h， 以93%的产率得到4-(2,4-dichlorophenyl)-3,4-dihydro-6-phenylpyrimidin-2(1H)-one
  参考文献：
  名称：

  MnO2–MWCNT nanocomposites as efficient catalyst in the synthesis of Biginelli-type compounds under microwave radiation

  摘要：

  A novel Biginelli-like cyclocondensation reaction is efficiently catalyzed by MnO2-CNT nanocomposites as a new catalyst under microwave irradiation and solvent-free conditions in excellent yields. The major advantages of the present method are high yields, short reaction times and solvent-free reaction conditions, reducing reaction steps and purification of products by non-chromatographic methods. The activity, recovery and reusability of the catalyst are found to be good. (C) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2013.02.021

文献信息

• Synthesis of 3,4-Dihydropyrimidin-2(1<i>H</i>)-ones using Sodium Bisulfate as a Catalyst under Solvent-free Conditions
  作者：Min Wang、Ji-Lei Song、Shuang Zhao、Xin Wan

  DOI：10.1080/00304948.2014.944407

  日期：2014.9.3

  the preparation of 5-unsubstituted 3,4-dihydropyrimidin2(1H)-ones via the one-pot condensation of aromatic aldehydes, acetophenones and urea in the presence of NaHSO4 at 90◦C without solvent and promoter (Scheme 1). We initiated our study with 2-nitrobenzaldehyde, acetophenone, and urea as a model reaction to determine the best experimental conditions. Solvent, the amount of catalyst and suitable reaction

  嘧啶酮或二氢嘧啶酮 (DHPM) 是重要的杂环化合物，因其生物学 1 和药理 2 作用以及强效的钙通道阻断活性而备受关注。 3-5 因此，近年来，这些化合物的合成引起了相当大的兴趣。 6多组分反应 (MCR) 是高度灵活、化学选择性、收敛和原子效率高的过程。在过去的十年中，使用 MCR 是获取杂环的一种非常有效的方法。2004 年，Wang 等人。首次报道了在 CH3CN 中 FeCl3·6H2O/TMSCl 存在下，由芳香醛、芳香酮和尿素合成 5-未取代的 3,4-二氢嘧啶-2(1H)-酮的 MCR 制备方法。后来，其他催化剂如 NaI/TMSCl、8 Co(OAc)2/TMSCl、tBuONa/MWI、10 PTSA/MWI、11 AlCl3 或 AlBr3 in CH3CN、I2、ZnI2/MWI、Fe(NO3)3·9H2O 和 N2 气氛下的 AlCl3/KI16 等也已被使用。然
• A novel protocol for solvent-free synthesis of 4,6-diaryl-3,4-dihydropyrimidine-2(1H)-ones catalyzed by metal oxide–MWCNTs nanocomposites
  作者：Javad Safari、Soheila Gandomi-Ravandi

  DOI：10.1016/j.molstruc.2014.05.012

  日期：2014.9

  cost and long lifetime. The application of solvent-free conditions and transition metal oxides decorated–MWCNTs (MOx–MWCNTs) nanocomposites as attractive, effective and reusable catalysts leads to the efficient synthesis of 4,6-diaryl-3,4-dihydropyrimidin-2-(1H)-ones. This recyclable heterogeneous catalytic system provides a simple strategy to generate a variety of pyrimidinones under solvent-free conditions

  Biginelli 样缩合被描述为使用苯乙酮作为活性亚甲基化合物与醛和尿素在无溶剂条件下提供嘧啶酮类似物。在本文中，除了制备基于多壁碳纳米管的纳米复合材料外，我们的研究还集中在金属氧化物-多壁碳纳米管复合材料的催化效率上。好的催化剂的必要条件是高活性、选择性、可重复使用性、合理的成本和长寿命。无溶剂条件和过渡金属氧化物装饰的多壁碳纳米管（MOx-MWCNTs）纳米复合材料作为有吸引力、有效和可重复使用的催化剂的应用导致4,6-二芳基-3,4-二氢嘧啶-2-(1H)的有效合成-那些。这种可回收的多相催化系统提供了一种在无溶剂条件下生成各种嘧啶酮的简单策略。
• Green Biginelli-type Reaction: Solvent-free Synthesis of 5-unsubstituted 3,4-dihydropyrimdin-2(1<i>H</i>)-ones
  作者：Min Wang、Jilei Song、Qilin Lu、Qinglin Wang

  DOI：10.1002/jhet.2279

  日期：2015.11

  The Biginelli‐type compounds, 5‐unsubstituted 3,4‐dihydropyrimdin‐2(1H)‐ones were synthesized by a one‐pot three‐component condensation of aromatic aldehydes, aromatic ketones and urea in the presence of SnCl4 · 5H2O under solvent‐free conditions. The advantages of this method are short reaction time (4–10 min), excellent yields (74–97%), inexpensive catalyst and solvent‐free conditions. A plausible

  在SnCl 4  ·5H 2存在下，通过芳族醛，芳族酮和尿素的一锅式三组分缩合反应，合成了Biginelli型化合物5-未取代的3,4-dihydropyrimdin-2（1 H）-one。O在无溶剂的条件下。该方法的优点是反应时间短（4-10分钟），产率高（74-97％），廉价的催化剂和无溶剂条件。提出了一个合理的机制。
• New three-component cyclocondensation reaction: microwave-assisted one-pot synthesis of 5-unsubstituted-3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
  作者：Bing Liang、Xitian Wang、Jin-Xian Wang、Zhengyin Du

  DOI：10.1016/j.tet.2006.12.062

  日期：2007.2

  Sixteen 5-unsubstituted-3,4-dihydropyrimidin-2(1H)-ones have been synthesized by microwave-assisted Biginelli reactions in a short and concise manner employing ZnI2 as a catalyst under solvent-free conditions. All products were identified by IR, NMR, elemental analysis and HRMS. The advantages of this novel protocol include the excellent yield, operational simplicity, short time and the avoidance of the use of organic solvents and expensive catalysts. (c) 2007 Elsevier Ltd. All rights reserved.
• MnO2–MWCNT nanocomposites as efficient catalyst in the synthesis of Biginelli-type compounds under microwave radiation
  作者：Javad Safari、Soheila Gandomi-Ravandi

  DOI：10.1016/j.molcata.2013.02.021

  日期：2013.7

  A novel Biginelli-like cyclocondensation reaction is efficiently catalyzed by MnO2-CNT nanocomposites as a new catalyst under microwave irradiation and solvent-free conditions in excellent yields. The major advantages of the present method are high yields, short reaction times and solvent-free reaction conditions, reducing reaction steps and purification of products by non-chromatographic methods. The activity, recovery and reusability of the catalyst are found to be good. (C) 2013 Elsevier B.V. All rights reserved.