5-hydroxy-2-oxo-2H-chromene-3-carbonitrile | 1158276-04-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 5-hydroxy-2-oxo-2H-chromene-3-carbonitrile
• 英文别名: 3-cyano-5-hydroxycoumarin；5-hydroxy-2-oxochromene-3-carbonitrile
• CAS: 1158276-04-0
• 化学式: C₁₀H₅NO₃
• 分子量: 187.155
• InChiKey: CEQZUESFZCFQNJ-UHFFFAOYSA-N

物化性质

• 熔点：
  229-232 °C(Solvent: Ethanol; Water)
• 沸点：
  414.1±45.0 °C(predicted)
• 密度：
  1.50±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.3
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-hydroxy-2-oxo-2H-chromene-3-carbonitrile 、 天然橡胶 以 乙腈 为溶剂， 55.0 ℃ 、1100.02 MPa 条件下， 反应 48.0h， 以65%的产率得到(6aSR,10aSR)-1-hydroxy-9-methyl-6-oxo-10,10a-dihydro-7H-benzo[c]chromen-6a-carbonitrile
  参考文献：
  名称：

  High Pressure Diels−Alder Approach to Hydroxy-Substituted 6a-Cyano-tetrahydro-6H-benzo[c]chromen-6-ones: A Route to Δ⁶-Cis-Cannabidiol

  摘要：

  Diels-Alder cycloaddition reactions of 3-cyanocoumarin, hydroxy-substituted 3-cyanocoumarins and mesyl-substituted 3-cyano-coumarins with methyl-1,3-butadienes carried out under high pressure (11 kbar) are reported. Activation by high pressure allows these reactions to proceed satisfactorily under mild conditions to produce 6a-cyano-hydroxy- and 6a-cyano-mesyl-tetrahydro-6H-benzo[c]chromen-6-ones in moderate to excellent yield. The synthesis of cis-1-hydroxy-9-methyl-3-pentyl-6a,7, 10,10a-tetrahydro-benzo[c]chromen-6-one as precursor of Delta(6)-3,4-cis-cannabidiol (Delta(6)-cis-CBD) and Delta(8)-cis-tetrahydrocannabinol (Delta(8)-cis-THC) is outlined.

  DOI：

  10.1021/jo9005365
• 作为产物：
  描述：

  3-cyano-5-hydroxy-benzo[b]pyran-2-imine 以94%的产率得到5-hydroxy-2-oxo-2H-chromene-3-carbonitrile
  参考文献：
  名称：

  在MgO上轻松，高效且环保地合成苯并[b]吡喃-2-亚胺并转化为香豆素衍生物

  摘要：

  本文介绍了通过丙二腈和氰基乙酸酯与水杨醛衍生物在MgO上的Knoevenagel缩合反应在室温下合成苯并[b]吡喃-2-亚胺衍生物，并将其转化为已知的香豆素的方法。以良好的收率，短的反应时间和简单的实验步骤获得了满意的结果。J.杂环化​​学，（2009）。

  DOI：

  10.1002/jhet.265

文献信息

• ZrCl4/[bmim]BF4-catalyzed condensation of salicylaldehydes and malononitrile: Single-step synthesis of 3-cyanocoumarin derivatives
  作者：Hassan Valizadeh、Manzar Mahmoodian、Hamid Gholipour

  DOI：10.1002/jhet.593

  日期：2011.7

  A versatile and efficient single‐step route to 3‐cyanocoumarins via Knoevenagel condensation of salicylaldehydes and malononitrile using ZrCl4 as the catalyst (15 mol %) in ionic liquid 1‐(n‐butyl)‐3‐methylimidazolium tetrafluoroborate as reaction medium and catalyst is described. The novel procedure features single step, short reaction time, good yields, and simple workup. J. Heterocyclic Chem., (2011)

  在离子液体1-（n-丁基）-3-甲基咪唑四氟硼酸作为反应介质和催化剂的情况下，使用ZrCl 4作为催化剂（15 mol％），通过水杨醛和丙二腈的Knoevenagel缩合，通向3-氰基香豆素的通用高效方法描述。该新方法具有一步法，反应时间短，产率高和后处理简单的特点。J.杂环化​​学。（2011）。
• One-Pot Green Synthesis of 2-Oxo-2H-chromene-3-carbonitriles Using Dual-Frequency Ultrasonication
  作者：S. Kumar、N. Vashisht、Aruna、S. P. Sharma

  DOI：10.1134/s1070428021090189

  日期：2021.9
• Facile, efficient, and eco-friendly synthesis of benzo[b]pyran-2-imines over MgO and transformation to the coumarin derivatives
  作者：Hassan Valizadeh、Ashraf Fakhari

  DOI：10.1002/jhet.265

  日期：2009.11

  Room temperature synthesis of benzo[b]pyran‐2‐imine derivatives via the Knoevenagel condensation of malononitrile and cyanoacetates with salicylaldehyde derivatives over MgO and their transformation to the known coumarins is described. The satisfactory results were obtained with good yields, short reaction time, and simplicity in the experimental procedure. J. Heterocyclic Chem., (2009).

  本文介绍了通过丙二腈和氰基乙酸酯与水杨醛衍生物在MgO上的Knoevenagel缩合反应在室温下合成苯并[b]吡喃-2-亚胺衍生物，并将其转化为已知的香豆素的方法。以良好的收率，短的反应时间和简单的实验步骤获得了满意的结果。J.杂环化​​学，（2009）。
• High Pressure Diels−Alder Approach to Hydroxy-Substituted 6a-Cyano-tetrahydro-6H-benzo[c]chromen-6-ones: A Route to Δ⁶-<i>Cis</i>-Cannabidiol
  作者：Eleonora Ballerini、Lucio Minuti、Oriana Piermatti、Ferdinando Pizzo

  DOI：10.1021/jo9005365

  日期：2009.6.5

  Diels-Alder cycloaddition reactions of 3-cyanocoumarin, hydroxy-substituted 3-cyanocoumarins and mesyl-substituted 3-cyano-coumarins with methyl-1,3-butadienes carried out under high pressure (11 kbar) are reported. Activation by high pressure allows these reactions to proceed satisfactorily under mild conditions to produce 6a-cyano-hydroxy- and 6a-cyano-mesyl-tetrahydro-6H-benzo[c]chromen-6-ones in moderate to excellent yield. The synthesis of cis-1-hydroxy-9-methyl-3-pentyl-6a,7, 10,10a-tetrahydro-benzo[c]chromen-6-one as precursor of Delta(6)-3,4-cis-cannabidiol (Delta(6)-cis-CBD) and Delta(8)-cis-tetrahydrocannabinol (Delta(8)-cis-THC) is outlined.