5-(2-hydroxybenzylidene)pyrimidine-2,4,6-trione | 66386-23-0

• 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: 5-(2-hydroxybenzylidene)pyrimidine-2,4,6-trione
• 英文别名: 5-(2-hydroxybenzylidene)pyrimidine-2,4,6(1H,3H,5H)-trione；2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-[(2-hydroxyphenyl)methylene]-；5-[(2-hydroxyphenyl)methylidene]-1,3-diazinane-2,4,6-trione
• CAS: 66386-23-0
• 化学式: C₁₁H₈N₂O₄
• 分子量: 232.196
• InChiKey: HEVXCZUWVKUXIS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  95.5
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-(2-hydroxybenzylidene)pyrimidine-2,4,6-trione 在 一水合肼 作用下， 以 甲醇 为溶剂， 以84%的产率得到水杨醛吖嗪
  参考文献：
  名称：

  Goudgaon; Upendar Reddy, Ch.; Patil, Sharanabasappa, Indian Journal of Heterocyclic Chemistry, 2014, vol. 23, # 3, p. 277 - 282

  摘要：

  DOI：
• 作为产物：
  描述：

  水杨醛 在 二甲基亚砜 作用下， 以 乙醇 为溶剂， 反应 2.0h， 生成 5-(2-hydroxybenzylidene)pyrimidine-2,4,6-trione
  参考文献：
  名称：

  Nuclear magnetic resonance and molecular modeling study of exocyclic carbon–carbon double bond polarization in benzylidene barbiturates

  摘要：

  Benzylidene barbiturates are important materials for the synthesis of heterocyclic compounds with potential for the development of new drugs. The reactivity of benzylidene barbiturates is mainly controlled by their exocyclic carbon-carbon double bond. In this work, the exocyclic double bond polarization was estimated experimentally by NMR and correlated with the Hammett sigma values of the aromatic ring substituents and the molecular modeling calculated atomic charge difference. It is demonstrated that carbon chemical shift differences and NBO charge differences can be used to predict their reactivity. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molstruc.2012.09.021

文献信息

• Verjuice as a green and bio-degradable solvent/catalyst for facile and eco-friendly synthesis of 5-arylmethylenepyrimidine-2,4,6-trione, pyrano[2,3-d]pyrimidinone and pyrimido[4,5-d]pyrimidinone derivatives
  作者：Niloufar Safari、Farhad Shirini、Hassan Tajik

  DOI：10.1007/s13738-018-1565-y

  日期：2019.4

  of the synthesis of 5-arylmethylenepyrimidine-2,4,6-triones, via Knovenagel condensation reaction between barbituric or thiobarbituric acid and aldehydes. Verjuice is also employed for the effective synthesis of pyrano[2,3-d]pyrimidinone derivatives via a three-component reaction of barbituric acid or its thio analogue, aldehydes and malononitrile. In the same way, pyrimido[4,5-d]pyrimidinone derivatives

  Verjuice（未成熟的葡萄汁）是一种有机酸的天然混合物，可通过pH值和TGA分析鉴定，可通过Knovenagel缩合有效地用于促进5-芳基亚甲基嘧啶-2,4,6-三酮的合成。巴比妥酸或硫代巴比妥酸与醛之间的反应。Verjuice还用于通过巴比妥酸或其硫代类似物，醛和丙二腈的三组分反应有效合成吡喃并[2,3- d ]嘧啶酮衍生物。同样，嘧啶基[4,5- d]嘧啶酮衍生物可简单地通过巴比妥酸，醛与脲或硫脲在果汁中的反应来制备。这种绿色方法学具有显着的优势，包括操作简单，可接受的反应时间，易于后处理，高收率，避免在反应和后处理过程中使用任何昂贵的起始原料，挥发性和有害有机溶剂以及使用天然，低成本，可重复使用且可生物降解的催化剂。
• DABCO-based ionic liquids: green and recyclable catalysts for the synthesis of barbituric and thiobarbituric acid derivatives in aqueous media
  作者：Narges Seyyedi、Farhad Shirini、Mohaddeseh Safarpoor Nikoo Langarudi

  DOI：10.1039/c6ra05878g

  日期：——

  the reaction of barbituric or thiobarbituric acid, malononitrile and aldehydes in the presence of this reagent and 1,4-disulfo-1,4-diazabicyclo[2.2.2]octane-1,4-diium chloride ([DABCO](SO3H)2(Cl)2) has been investigated. The structure of the products was characterized using IR, 1H NMR and 13C NMR spectroscopy. The present methodologies suggests several advantages such as ease of the preparation and

  一种新的，直接的方法，可通过使用1,4-二磺基-1,4-二氮杂双环[2.2.2]辛烷-1通过巴比妥酸及其硫代类似物与醛的反应来合成5-芳基巴比妥酸和硫代巴比妥酸，已经报道了作为有效催化剂的4-二硫酸氢二钠（[DABCO]（SO 3 H）2（HSO 4）2）。在该项目中，还通过在该试剂和1,4-二磺基-1,4-二氮杂双环[2.2]存在下，通过巴比妥酸或硫代巴比妥酸，丙二腈和醛的反应制备吡喃并[2,3- d ]-嘧啶二酮。 .2]辛烷-1,4-氯化铵（[DABCO]（SO 3 H）2（Cl）2）已被调查。使用IR，1 H NMR和13 C NMR光谱对产物的结构进行表征。本方法论提出了若干优点，例如易于制备和处理催化剂，高收率，简单和绿色的方法，低成本，短的反应时间，易于后处理和在水中作为绿色溶剂进行反应的预形成。
• Succinimidinium hydrogensulfate ([H-Suc]HSO4) as an efficient ionic liquid catalyst for the synthesis of 5-arylidenepyrimidine-2,4,6(1H,3H,5H)-trione and pyrano-pyrimidinones derivatives
  作者：Omid Goli-Jolodar、Farhad Shirini、Mohadeseh Seddighi

  DOI：10.1007/s13738-015-0754-1

  日期：2016.3

  this work, succinimidinium hydrogensulfate ([H-Suc]HSO4), a newly reported Brönsted acidic ionic liquids is used as an efficient, homogeneous and reusable catalyst for the synthesis of 5-arylidenepyrimidine-2,4,6(1H,3H,5H)-trione and pyrano[2,3-d]-pyrimidine dione derivatives. The products were formed in excellent yields over short reaction times and the catalyst can be reused several times without

  在这项工作中，新近报道的布朗斯台德酸性离子液体琥珀酸氢硫酸琥珀酰亚胺盐（[H-Suc] HSO 4）被用作合成5-芳基亚嘧啶-2,4,6（1 H， 3 H，5 H）-三酮和吡喃并[2,3-d]-嘧啶二酮衍生物。产物在短的反应时间内以优异的产率形成，并且催化剂可以重复使用数次，而其活性没有任何明显的损失。
• Succinimidinium N-sulfonic acid hydrogen sulfate as an efficient ionic liquid catalyst for the synthesis of 5-arylmethylene-pyrimidine-2,4,6-trione and pyrano[2,3-d]pyrimidinone derivatives
  作者：Masoumeh Abedini、Farhad Shirini、Javad Mohammad-Alinejad Omran、Mohadeseh Seddighi、Omid Goli-Jolodar

  DOI：10.1007/s11164-015-2289-6

  日期：2016.5

  ([SuSA-H]HSO4) as a new ionic liquid is prepared and characterized using a variety of techniques, including infrared spectra (FT-IR), 1H and 13C NMR, scanning electron microscopy, a mass spectra method, as well as by Hammett acidity function. The prepared reagent is efficiently able to catalyze the preparation of 5-arylmethylene-pyrimidine-2,4,6-triones via the condensation of aldehydes and barbituric acid

  使用多种技术制备并表征了琥珀酰亚胺 N- 磺酸硫酸氢盐（[SuSA-H] HSO 4），并使用多种技术进行了表征，包括红外光谱（FT-IR），1 H和13 C NMR，扫描电子显微镜，质谱方法以及Hammett酸度函数。通过醛和巴比妥酸的缩合，所制备的试剂能够有效地催化5-芳基亚甲基-嘧啶-2,4,6-三酮的制备。进一步的研究表明，醛与巴比妥酸和丙二腈的缩合反应生成吡喃并[2,3- d 在该试剂的存在下，也可以有效地促进]嘧啶酮衍生物。本发明的方法具有几个优点，包括易于制备和处理催化剂，简单和容易的后处理，短的反应时间，产物的高产率和催化剂的可回收性。
• Bi-SO3H functionalized ionic liquid based on DABCO as a mild and efficient catalyst for the synthesis of 1,8-dioxo-octahydro-xanthene and 5-arylmethylene-pyrimidine-2,4,6-trione derivatives
  作者：Farhad Shirini、Mohaddeseh Safarpoor Nikoo Langarudi、Mohadeseh Seddighi、Omid Goli Jolodar

  DOI：10.1007/s11164-014-1905-1

  日期：2015.11

  1,8-Dioxo-octahydro-xanthenes are easily prepared via the condensation of aldehydes with 1,3-cyclohexadione and/or dimedone using N-sulfonated DABCO as a new and efficient catalyst. This reagent is also efficiently able to catalyze the condensation of aldehydes with barbituric acid leading to 5-arylmethylene-pyrimidine-2,4,6-triones. The structure of the products was characterized by their IR, 1H NMR, and 13C NMR spectroscopy. The present methodology offers several advantages such as ease of preparation and handling of the catalyst, high yields, simple and green procedure, low cost, short reaction times, easy work-up, and preformation of the reaction in the absence of solvent or in water as a green solvent.

  1,8-二氧杂-八氢化咕吨类化合物可通过醛与1,3-环己二酮和/或双甲酮在新型高效的N-磺化DABCO催化剂作用下缩合反应制得。该试剂同样能高效催化醛与巴比妥酸的缩合反应，生成5-芳亚甲基-嘧啶-2,4,6-三酮。产物结构通过其红外光谱、核磁共振氢谱和碳谱得以表征。本方法具有多种优势，如催化剂制备与处理简便、产率高、操作简单且环保、成本低、反应时间短、后处理简便，以及可在无溶剂条件下或使用水作为绿色溶剂的情况下预先进行反应。