2-amino-4-hexyl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-amino-4-hexyl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
• 英文别名: 2-amino-3-cyano-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4-heptyl-4H-benzo[b]pyran；2-amino-4-hexyl-7,7-dimethyl-5-oxo-6,8-dihydro-4H-chromene-3-carbonitrile
• 化学式: C₁₈H₂₆N₂O₂
• 分子量: 302.417
• InChiKey: RNXHADDNDXRCHU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  76.1
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  庚醛 在 吗啉 作用下， 以 乙醇 为溶剂， 反应 24.58h， 生成 2-amino-4-hexyl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile
  参考文献：
  名称：

  Aliphatic aldehydes in multicomponent syntheses of 4-alkyl-substituted partially hydrogenated quinolines, fused 4H-pyrans, and 2-amino-4-ethyl-5-methylbenzene-1,3-dicarbonitrile

  摘要：

  The Knoevenagel condensation of aliphatic aldehydes with CH acids, malonodinitrile, cyanothioacetamide, cyclohexane-1,3-dione, dimedone, 4-hydroxycoumarin, 3-aminophenol, and N-(cyclohex-1-enyl)morpholine leads to formation of 4-alkyl-substituted partially hydrogenated quinolines, fused 4H-pyrans, and 2-amino-4-ethyl-5-methylbenzene-1,3-dicarbonitrile. The structure of the latter was proved by the X-ray diffraction data.

  DOI：

  10.1134/s1070428006040142

文献信息

• Immobilized piperazine on the surface of graphene oxide as a heterogeneous bifunctional acid–base catalyst for the multicomponent synthesis of 2-amino-3-cyano-4<i>H</i>-chromenes
  作者：Asma Khazaee、Roya Jahanshahi、Sara Sobhani、Jørgen Skibsted、José Miguel Sansano

  DOI：10.1039/d0gc01274b

  日期：——

  heterogeneous bifunctional acid–base catalyst for the efficient multicomponent reaction of malononitrile, different active compounds containing enolizable C–H bonds and various aryl/alkyl aldehydes in aqueous ethanol. A wide variety of 2-amino-3-cyano-4H-chromenes are synthesized in the presence of this heterogeneous catalyst in good to high yields and with short reaction times. The catalyst is easily

  合成并固定在氧化石墨烯（哌嗪-GO）表面上的哌嗪可以通过不同的方法进行表征，例如FT-IR，固态29 Si 1 H}和13 C 1 H} CP / MAS NMR，元素分析， TGA，TEM，FE-SEM，XPS和TPD。随后，它被用作多相双官能酸碱催化剂，用于丙二腈，含有可烯化CH键的不同活性化合物和乙醇水溶液中各种芳基/烷基醛的高效多组分反应。各种各样的2-氨基-3-氰基-4 H在该非均相催化剂的存在下以高产率至高产率和短反应时间合成二苯甲基苯并二氢萘。催化剂易于分离并重复使用至少六次，而活性没有明显损失。GO的酸性性质改善了负载的哌嗪的催化活性，并且还为催化剂提供了非均相性。使用乙醇水溶液作为绿色溶剂，高周转率（TON），简便的催化剂回收和再利用，简单的后处理方法以及方法的通用性，使得该方案成为合成标题杂环的环境友好的方法。
• Ytterbium(III) Bis(Perfluorooctanesulfonyl)Imide Catalyzed One-Pot Synthesis of Tetrahydrobenzo[<i>b</i>]Pyrans in Fluorous Biphase System
  作者：Mei Hong、Chun Cai

  DOI：10.3184/030823410x12863845344182

  日期：2010.10

  Ytterbium(III) bis(perfluorooctanesulfonyl)imide [Yb(NPf2)3] has been prepared, and used as an efficient catalyst for the synthesis of 4H-benzo[b]pyran derivatives by a one-pot three-component condensation of aldehydes, active methylene compounds, and dimedone in a fluorous biphase system (FBS). The reaction proceeds smoothly and affords the corresponding 4H-benzo[b]pyrans in moderate to excellent

  镱（III）双（全氟辛烷磺酰基）亚胺[Yb(NPf2)3]已被制备，并用作通过醛的一锅三组分缩合合成4H-苯并[b]吡喃衍生物的有效催化剂，活性亚甲基化合物和二甲酮在含氟双相系统 (FBS) 中。反应顺利进行并以中等至极好的产率提供相应的4H-苯并[b]吡喃。催化剂选择性地溶解在氟相中，可以通过简单的相分离回收，多次重复使用，活性没有明显下降。
• Aliphatic aldehydes in multicomponent syntheses of 4-alkyl-substituted partially hydrogenated quinolines, fused 4H-pyrans, and 2-amino-4-ethyl-5-methylbenzene-1,3-dicarbonitrile
  作者：V. D. Dyachenko、A. N. Chernega

  DOI：10.1134/s1070428006040142

  日期：2006.4

  The Knoevenagel condensation of aliphatic aldehydes with CH acids, malonodinitrile, cyanothioacetamide, cyclohexane-1,3-dione, dimedone, 4-hydroxycoumarin, 3-aminophenol, and N-(cyclohex-1-enyl)morpholine leads to formation of 4-alkyl-substituted partially hydrogenated quinolines, fused 4H-pyrans, and 2-amino-4-ethyl-5-methylbenzene-1,3-dicarbonitrile. The structure of the latter was proved by the X-ray diffraction data.