7-amino-5-(4-bromophenyl)-2,4-dioxo-1,3,4,5-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile | 85992-61-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃嘧啶类
• 英文名称: 7-amino-5-(4-bromophenyl)-2,4-dioxo-1,3,4,5-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile
• 英文别名: 7-amino-5-(4-bromophenyl)-2,4-dioxo-2,3,4,5-tetrahydro-1H-pyrano[2,3-d]pyrimidine-6-carbonitrile；7-amino-5-(4-bromophenyl)-2,4-dihydroxy-5H-pyrano[2,3-d]pyrimidine-6-carbonitrile；7-amino-5-(4-bromophenyl)-2,4-dioxo-1,5-dihydropyrano[2,3-d]pyrimidine-6-carbonitrile
• CAS: 85992-61-6
• 化学式: C₁₄H₉BrN₄O₃
• 分子量: 361.154
• InChiKey: GBROIDUZYDLBLJ-UHFFFAOYSA-N

物化性质

• 熔点：
  230-231 °C(Solv: ethanol (64-17-5))
• 密度：
  1.83±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  22
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  117
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  potassiumhexacyanoferrate(II) trihydrate 、 7-amino-5-(4-bromophenyl)-2,4-dioxo-1,3,4,5-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile 在 sodium carbonate 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 以58%的产率得到7-amino-5-(4-cyanophenyl)-2,4-dioxo-1,3,4,5-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile
  参考文献：
  名称：

  Immobilized palladium nanoparticles on a cyclodextrin-polyurethane nanosponge (Pd-CD-PU-NS): An efficient catalyst for cyanation reaction in aqueous media

  摘要：

  Immobilized palladium nanoparticles on a cyclodextrin-polyurethane nanosponge (Pd-CD-PU-NS) were found to be an efficient heterogeneous catalyst in the cyanation reaction of aryl halides in aqueous media. This catalyst system is containing palladium nanoparticles with a size of similar to 7 nm. Moreover, the CD-PU-NS support formed microsphere-shaped structures with a size of similar to 100-200 nm. The TEM images show that Pd nanoparticles were formed in near spherical shape morphology and were immobilized in the structure of the CD-PU-NS support. Under our optimized reaction conditions, aryl cyanides were obtained in high yields in the presence of the Pd-CD-PU-NS catalyst. Our results demonstrated that the Pd-CD-PU-NS catalyst is highly effective in the cyanation reaction in aqueous media. Furthermore, the catalyst could be simply extracted from the reaction mixture, providing an efficient methodology for the synthesis of aryl cyanides. The Pd-CD-PU-NS catalyst could be recycled four times with almost consistent catalytic efficiency.

  DOI：

  10.1016/j.ica.2019.05.021
• 作为产物：
  描述：

  对溴苯甲醛 在 二甲胺 作用下， 以 乙醇 为溶剂， 反应 0.3h， 生成 7-amino-5-(4-bromophenyl)-2,4-dioxo-1,3,4,5-tetrahydro-2H-pyrano[2,3-d]pyrimidine-6-carbonitrile
  参考文献：
  名称：

  吡喃环杂环支架的合成：使用二甲胺的高度方便的协议

  摘要：

  通过在二甲胺存在下通过一锅缩合芳香族醛，丙二腈和不同的可烯丙基化C-H活化酸性化合物，开发了一种可药用的吡喃环杂环的快速简便的三组分合成方法。 -乙醇在温和的反应条件下制得的催化剂。各种吡喃衍生物的选择性取决于烯醇化物的结构。本方案具有合成优势，无需色谱即可在短得多的反应时间内获得优异的收率。

  DOI：

  10.1007/s11164-014-1873-5

文献信息

• Synthesis of functionalized chromene and spirochromenes using l -proline-melamine as highly efficient and recyclable homogeneous catalyst at room temperature
  作者：Sakkani Nagaraju、Banoth Paplal、Kota Sathish、Santanab Giri、Dhurke Kashinath

  DOI：10.1016/j.tetlet.2017.09.060

  日期：2017.11

  commercially cheap l-proline and melamine for the synthesis of chromenes and spirochromenes (spirooxindoles) via multicomponent reactions at room temperature. Systematic studies were conducted in order to achieve desired reactivity and recyclability of the catalyst using various α-amino acids and aromatic amines as donor-acceptor pairs. Among the screened combinations, l-proline and melamine (3:1 ratio;

  使用便宜的1-脯氨酸和三聚氰胺开发了一种有效且可循环使用的均相催化剂，用于在室温下通过多组分反应合成色烯和螺环色酮（螺并辛多烯）。为了使用各种α-氨基酸和芳族胺作为供体-受体对，进行系统研究以实现所需的反应性和催化剂的可回收性。在筛选的组合中，l脯氨酸和三聚氰胺（3：1的比例；占总重量的3 mol％）被认为是最佳的催化剂，可以在室温下非常短的时间内（1-15分钟）以优异的产率（高达99％）提供所需的产品在DMSO中作为溶剂。通过添加EtOAc来回收催化剂，并且在不损失催化活性的情况下重复使用多达5个循环。
• 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。
• Synthesis of Tetrahydrobenzo[<i>b</i>]pyran and Pyrano[2, 3-<i>d</i>]pyrimidinone Derivatives Using Fe₃O₄@Ph-PMO-NaHSO₄ as a New Magnetically Separable Nanocatalyst
  作者：Mahdieh Haghighat、Farhad Shirini、Mostafa Golshekan

  DOI：10.1166/jnn.2019.16032

  日期：2019.6.1

  Immobilized NaHSO₄ on core/shell phenylene bridged periodic mesoporous organosilica magnetic nanoparticles (Fe₃O₄@Ph-PMO-NaHSO₄) as a new acidic magnetically separable nanocatalyst was successfully prepared in three steps: (i) preparation of Fe₃O₄ nanoparticles by a precipitation method, (ii) synthesis of an organic–inorganic periodic mesoporous organosilica structure with phenyl groups on the surface of Fe₃O₄ magnetic nanoparticles (MNPs) and (iii) finally adsorption of NaHSO₄ on periodic mesoporous organosilica (PMO) network. The prepared organic–inorganic magnetic reagent was characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), N₂ adsorption–desorption and energy-dispersive X-ray (EDX) techniques. Finally, it was used as a reusable and new catalyst to promote the synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-d]pyrimidinone derivatives as important biologically active compounds. Eco-friendly protocol, high yields, short reaction times and easy and quick isolation of the products are the main advantages of this procedure.

  在核/壳苯基桥联周期性介孔有机硅磁性纳米颗粒（Fe3O4@Ph-PMO-NaHSO4）上固定化的NaHSO4作为一种新型酸性磁性可分离纳米催化剂成功地通过三个步骤制备而成：（i）通过沉淀法制备Fe3O4纳米颗粒，（ii）合成具有苯基团的有机-无机周期性介孔有机硅结构，将其覆盖在Fe3O4磁性纳米颗粒（MNPs）表面，（iii）最后将NaHSO4吸附在周期性介孔有机硅（PMO）网络上。制备的有机-无机磁性试剂通过傅里叶变换红外光谱（FT-IR）、X射线粉末衍射（XRD）、透射电子显微镜（TEM）、N2吸附-脱附和能谱X射线（EDX）技术进行表征。最后，它被用作可重复使用的新型催化剂，促进四氢苯并[b]吡喃和吡喃并[2,3-d]嘧啶酮衍生物的合成，这些是重要的生物活性化合物。环保的方案、高产率、短反应时间以及产品的易于快速分离是该程序的主要优点。
• Introduction of organic/inorganic Fe₃O₄@MCM-41@Zr-piperazine magnetite nanocatalyst for the promotion of the synthesis of tetrahydro-4<i>H</i>-chromene and pyrano[2,3-<i>d</i>]pyrimidinone derivatives
  作者：Reyhaneh Pourhasan-Kisomi、Farhad Shirini、Mostafa Golshekan

  DOI：10.1002/aoc.4371

  日期：2018.7

  highly dispersed in the tetrahedral environment of silica framework and piperazine is successfully attached to the surface of the nanocatalyst in connection with zirconium. The prepared nanosized reagent (10–30 nm), shows excellent catalytic activity in the synthesis of tetrahydro‐4H‐chromene and pyrano[2,3‐d]pyrimidinone derivatives. All reactions are performed under mild and completely heterogeneous

  哌嗪修饰的Fe 3 O 4 @ MCM-41 @ Zr-MNPs易于制备，并使用傅里叶变换红外光谱（FT-IR），X射线粉末衍射（XRD），N 2吸附-解吸，透射电子显微镜进行表征（ TEM），能量色散X射线（EDX），振动样品磁力法（VSM）和热重分析（TGA）技术。表征结果表明，高度分散在二氧化硅骨架和哌嗪的四面体环境中的Zr可以成功地附着在与锆相关的纳米催化剂表面。制备的纳米级试剂（10–30 nm）在四氢-4 H-色烯和吡喃[2,3- d]嘧啶酮衍生物。所有反应均在温和且完全异质的反应条件下进行，且反应时间短。另一方面，由于其超顺磁性，该催化剂可通过施加外部磁场容易地分离并重复使用多次。