5-acetyl-2-amino-6-methyl-4-(4-methyl-phenyl)-4H-pyran-3-carbonitrile | 120811-10-1

• 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: 5-acetyl-2-amino-6-methyl-4-(4-methyl-phenyl)-4H-pyran-3-carbonitrile
• 英文别名: 5-acetyl-2-amino-3-cyano-6-methyl-4-(p-methylphenyl)-4H-pyran；5-acetyl-2-amino-6-methyl-4-p-tolyl-4H-pyran-3-carbonitrile；5-acetyl-2-amino-6-methyl-4-(4-methylphenyl)-4H-pyran-3-carbonitrile
• CAS: 120811-10-1
• 化学式: C₁₆H₁₆N₂O₂
• 分子量: 268.315
• InChiKey: RNCAEGLJSBQSPB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  76.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-acetyl-2-amino-6-methyl-4-(4-methyl-phenyl)-4H-pyran-3-carbonitrile 在 甲酸 作用下， 以92%的产率得到5-acetyl-6-methyl-2-oxo-4-p-tolyl-1,2,3,4-tetrahydropyridine-3-carbonitrile
  参考文献：
  名称：

  Srivastava, Seema; Batra, Sanjay; Bhaduri, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1996, vol. 35, # 6, p. 602 - 604

  摘要：

  DOI：
• 作为产物：
  描述：

  3-(4-methyl-benzylidene)-pentane-2,4-dione 、 丙二腈 在 三乙胺 作用下， 以 乙醇 为溶剂， 以56%的产率得到5-acetyl-2-amino-6-methyl-4-(4-methyl-phenyl)-4H-pyran-3-carbonitrile
  参考文献：
  名称：

  方便的一步合成吡喃并[2,3-b]吡啶

  摘要：

  报道了一种由丙二腈和不饱和酮合成吡喃并[2,3-b]吡啶二酮的新方法。讨论了该反应机理，并通过中间体单环4H-吡喃进行了反应。制备了几种具有不同取代方式的衍生物。

  DOI：

  10.1016/s0040-4020(01)81443-5

文献信息

• Preparation of a superior liquid catalyst by hybridization of three solids of nanoZnO, urea, and choline chloride for Knoevenagel-based reactions
  作者：Fatemeh Tamaddon、Davood Azadi

  DOI：10.1007/s13738-017-1144-7

  日期：2017.10

  electron-deficient alkenes. Due to the high diffusion of ZnO nanoparticles in DESs, synergy of nanoZnO with DESs, and much contact of this fluid catalyst with starting materials, all Knoevenagel-based reactions occur with higher yields at lower catalyst loading and shorter times than individual ChCl:2urea, nanoZnO, or even previously catalysts used for this purpose. High polarity and reusability are other

  摘要[ZnClO.urea] - [Ch.urea] +的复合催化剂是通过将纳米ZnO在50°C的氯化胆碱：2urea中溶解而制备的。[ZnClO.urea]的浓度-给定液体中的ZnO含量为19,987 ppm，比由本体ZnO制成的类似溶液高10.5倍。这种有机/无机杂化催化剂在基于Knoevenagel的吡喃，苯并二氢吡喃和缺电子烯烃的合成中表现出很高的催化性能。由于ZnO纳米粒子在DES中的高度扩散，纳米ZnO与DES的协同作用以及这种流体催化剂与起始原料的大量接触，因此所有Knoevenagel基反应均以较低的催化剂负载量和较高的收率进行，比单独的ChCl：2urea短，纳米ZnO，或什至以前用于此目的的催化剂。高极性和可重复使用性是阴离子络合物[ZnClO.urea] -和纳米ZnO形状均一的其他优点。 图形概要
• Organocatalytic mediated green approach: A versatile new <scp>L</scp>-valine promoted synthesis of diverse and densely functionalized 2-amino-3-cyano-4H-pyrans
  作者：Jyoti Tiwari、Swastika Singh、Mohammad Saquib、Fatima Tufail、Amit Kumar Sharma、Shailesh Singh、Jaya Singh、Jagdamba Singh

  DOI：10.1080/00397911.2017.1393087

  日期：2018.1.17

  new L-valine promoted facile and versatile green synthesis of diversified 2-amino-3-cyano-4H-pyrans using a one pot multicomponent-tandem reaction of aromatic aldehydes, malononitrile, and diverse electron-rich enolizable carbonyl compounds is described. To the best of our knowledge this is the first report on the use of native L-valine as a catalyst in organic synthesis. Environmental friendly, mild

  摘要：新型 L-缬氨酸的发现促进了多种 2-氨基-3-氰基-4H-吡喃的简便、多功能绿色合成，使用芳香醛、丙二腈和多种富电子可烯醇化羰基化合物的单锅多组分串联反应被描述。据我们所知，这是关于在有机合成中使用天然 L-缬氨酸作为催化剂的第一份报告。环境友好、反应条件温和、使用容易获得的廉价原料、反应时间短、产率高、原子经济性高和有机催化剂的可回收性是所公开方案的主要优点。图形概要
• Tetramethylguanidine-[bmim][BF4]. An Efficient and Recyclable Catalytic System for One-Pot Synthesis of 4H-Pyrans
  作者：Yanqing Peng、Gonghua Song、Feifei Huang

  DOI：10.1007/s00706-004-0270-y

  日期：2005.5

  A clean and efficient method for the synthesis of 4 H -pyran derivatives through the one-pot condensation of aromatic aldehydes, malononitriles, and β-dicarbonyl compounds, using guanidine base tetramethylguanidine in [ bmim ][BF4] ionic liquid as a recyclable catalytic system, was described.

  一种清洁有效的方法，通过在[ bmim ] [BF 4 ]离子液体中使用胍基四甲基胍作为可循环使用的催化剂，通过芳族醛，丙二腈和β-二羰基化合物的一锅缩合来合成4 H- 吡喃衍生物 系统，进行了描述。
• Efficient Three-Component One-Pot Synthesis of 4H-Pyrans
  作者：J. Malviya、S. Kala、L. K. Sharma、R. K. P. Singh

  DOI：10.1134/s1070428019050178

  日期：2019.5

  Clean, practical, and efficient electrochemical synthesis of pharmaceutically relevant 4H-pyran derivatives by one-pot three-component combination of an aryl aldehyde, malononitrile, and a dicarbonyl compoundis developed. The synthesis is performed in ethanol with lithium perchlorate as a supporting electrolyte in an undivided cell on a platinum electrode under constant potential electrolysis conditions.
• Nano crystalline ZnO catalyzed one pot multicomponent reaction for an easy access of fully decorated 4H-pyran scaffolds and its rearrangement to 2-pyridone nucleus in aqueous media
  作者：Pranabes Bhattacharyya、Koyel Pradhan、Sanjay Paul、Asish R. Das

  DOI：10.1016/j.tetlet.2012.06.086

  日期：2012.8

  A green and highly efficient protocol has been developed for the synthesis of 4H-pyran scaffolds installing a one-pot three-component coupling reaction of an aldehyde, malononitrile, and a 1,3-diketo compound using nano structured ZnO as the catalyst in aqueous alcoholic medium. A greener method to synthesize 3,4-dihydropyridin-2-one has also been developed by rearranging 4H-pyran derivatives in aqueous medium applying p-TSOH as the right catalyst source. A wide spectrum of functional groups was tolerated in both the developed synthetic protocols with good to excellent yield of the targeted molecules. (c) 2012 Elsevier Ltd. All rights reserved.