2-amino-4-(4-(dimethylamino)phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile | 311773-24-7

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 2-amino-4-(4-(dimethylamino)phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
• 英文别名: 2-amino-4-(4-dimethylaminophenyl)-7,7’-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile；2-amino-7,7-dimethyl-5-oxo-4-(4-(dimethylamino)phenyl)-5,6,7,8-tetrahydro-4H-benzopyran-3-carbonitrile；2-amino-4-(4-(dimethylamino)phenyl)-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4H-chromene-3-carbonitrile；2-amino-4-(4-(dimethylamino)phenyl)-6,6,8,8-tetrahydro-7,7-dimethyl-5-oxo-4H-chromene-3-carbonitrile；2-amino-4-(4-dimethylamino-phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile；2-amino-3-cyano-5,6,7,8-tetrahydro-7,7-dimethyl-4-(4'-N,N-dimethylaminophenyl)-5-oxo-4H-benzopyran；2-amino-4-[4-(dimethylamino)phenyl]-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile；2-amino-4-[4-(dimethylamino)phenyl]-7,7-dimethyl-5-oxo-6,8-dihydro-4H-chromene-3-carbonitrile
• CAS: 311773-24-7
• 化学式: C₂₀H₂₃N₃O₂
• 分子量: 337.422
• InChiKey: MLLUSIIFNJZKHG-UHFFFAOYSA-N

物化性质

• 熔点：
  208-210 °C
• 沸点：
  576.0±50.0 °C(Predicted)
• 密度：
  1.22±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  25
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  79.4
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-amino-4-(4-(dimethylamino)phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile 在 水 、 对甲苯磺酸 作用下， 反应 7.5h， 以76%的产率得到4-(4-dimethylamino-phenyl)-7,7-dimethyl-2,5-dioxo-1,2,3,4,5,6,7,8-octahydroquinoline-3-carbonitrile
  参考文献：
  名称：

  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

  摘要：

  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.

  DOI：

  10.1016/j.tetlet.2012.06.086
• 作为产物：
  描述：

  ((4-(二甲基氨基)苯基)亚甲基)甲烷-1,1-二甲腈 、 5,5-二甲基-1,3-环己二酮 在 哌啶 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以83%的产率得到2-amino-4-(4-(dimethylamino)phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
  参考文献：
  名称：

  从5-Oxo-4 H-苯并吡喃一步合成氨基嘧啶

  摘要：

  一种新的4-氨基-6-芳基-2-苯基嘧啶-5-腈是从容易获得的4-芳基-2-氨基-3-氰基-5,6,7,8-四氢-7一步制备的。 ，7-二甲基-5-氧代-4 H-苯并吡喃。在EI条件下进行的质谱研究表明，具有高强度的分子峰对应于从嘧啶环的C2位上苯甲腈的损失。半经验（AMI和PM3）和从头开始的HF / 6-31G *计算显示了三个环不在同一平面上时偏爱的扭曲几何形状。

  DOI：

  10.1002/jhet.5570410406

文献信息

• Ionic liquids containing plant derived benzoate as anions, exhibiting supramolecular polymeric aggregation: Impact of the aggregation on organic catalysis in aqueous medium
  作者：Muhammad Naveed Javed、Imran Ali Hashmi、Shoaib Muhammad、Ahmed Bari、Syed Ghulam Musharraf、Syed Junaid Mahmood、Saima Javed、Firdous Imran Ali、Faisal Rafique、Muhammad Amjad Ilyas、Waqas Ahmed Waseem

  DOI：10.1016/j.molliq.2021.116329

  日期：2021.8

  The supramolecular polymeric aggregation behaviour of these ILs has been studied through high-resolution electron spray ionization mass spectrometry (HR-ESI-MS). Furthermore, these ILs were applied as catalyst/phase transfer catalyst in the synthesis of tetrahydrobenzo[b]pyran and its derivatives. These reactions were conducted in aqueous medium under ultrasound assistance. The results suggested that

  天然存在的苯甲酸 （BA） 衍生阴离子已被用于制备无卤素亲水性离子液体 （ILs 1-4）。这些 IL 的超分子聚合物聚集行为已通过高分辨率电子喷雾电离质谱 （HR-ESI-MS） 进行了研究。此外，这些 ILs 被用作催化剂/相转移催化剂合成四氢苯并[b]吡喃及其衍生物。这些反应在超声辅助下在水性介质中进行。结果表明，1-乙基-3-甲基咪唑鎓 2-羟基苯甲酸酯 （IL-1） 是一种高效的催化剂，在 30 分钟内产生 86.9% 的产物。此外，还研究了 ILs 的聚集行为对其催化活性的影响。
• [DMImd-DMP]: A highly efficient and reusable catalyst for the synthesis of 4H-benzo[b]pyran derivatives
  作者：Mohamed Abdenour Redouane、Naima Khiri-Meribout、Saida Benzerka、Abdelmadjid Debache

  DOI：10.1515/hc-2019-0025

  日期：2019.12.31

  Abstract A series of substituted 4H-pyrans derivatives were synthesized by a one-pot, multi-component reaction of aromatic aldehydes, malononitrile, and pyrazolone derivatives or active methylene carbonyl compounds such as dimedone, in the presence of 1,3-dimethyl imidazolium dimethyl phosphate [DMImd-DMP] as a catalyst in aqueous ethanol. Recyclability of the catalyst, high yields, simple product

  摘要 以芳香醛、丙二腈和吡唑啉酮衍生物或活性亚甲基羰基化合物如二甲酮为原料，在1,3-二甲基咪唑鎓二甲基吡啶存在下，通过一锅多组分反应合成了一系列取代的4H-吡喃衍生物。磷酸盐 [DMImd-DM​​P] 作为乙醇水溶液中的催化剂。催化剂的可回收性、高产率、简单的产品分离和高原子经济性是该协议值得注意的方面。
• 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。
• Synthesis of a SO3H-bearing carbonaceous solid catalyst, PEG–SAC: application for the easy access to a diversified library of pyran derivatives
  作者：Sanjay Paul、Sirshendu Ghosh、Pranabes Bhattacharyya、Asish R. Das

  DOI：10.1039/c3ra42352b

  日期：——

  A SO3H-bearing carbonaceous solid catalyst (PEG–SAC) has been synthesized through sulfonation followed by a hydrothermal carbonization method from renewable resources like polyethylene glycol. The biodegradable catalyst was characterized by XRD, TEM, FT-IR and EDX. The surface area and pore diameter of the catalyst were determined from a nitrogen adsorption–desorption isotherm experiment. A highly

  通过磺化，然后通过水热碳化法，从可再生资源（如聚乙二醇）中合成了一种含SO 3 H的碳质固体催化剂（PEG-SAC）。通过XRD，TEM，FT-IR和EDX对可生物降解的催化剂进行了表征。催化剂的表面积和孔径通过氮吸附-解吸等温线实验确定。高度收敛，高效且实用的PEG-SAC催化异环化方案，用于合成多样化的文库吡喃融合的杂环支架已被证明。建立该合成遵循组辅助纯化（GAP）化学过程，可避免传统色谱分离。重结晶纯化似乎是传统经典方法的一种很好的替代方法，表明碳基催化剂在生产过程中非常有效。吡喃稠合的杂环分子。水性反应介质，催化剂的易于回收和产物的高收率使得该方案具有吸引力，可持续性和经济性。