5,6-Dihydroxy-flavanon | 92496-92-9

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 5,6-Dihydroxy-flavanon
• 英文别名: 2,3-Dihydro-5,6-dihydroxy-2-phenyl-4H-1-benzopyran-4-one；5,6-dihydroxy-2-phenyl-2,3-dihydrochromen-4-one
• CAS: 92496-92-9
• 化学式: C₁₅H₁₂O₄
• 分子量: 256.258
• InChiKey: NBMXWHXEWGRIDW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  66.8
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5,6-Dihydroxy-flavanon 、 硫酸二甲酯 在 potassium carbonate 作用下， 以 丙酮 为溶剂， 反应 24.0h， 以95%的产率得到5,6-dimethoxyflavanone
  参考文献：
  名称：

  Selective and efficient oxidative modifications of flavonoids with 2-iodoxybenzoic acid (IBX)

  摘要：

  2-Iodoxybenzoic acid (IBX), a mild and efficient hypervalent iodine oxidant, has been utilised in different reaction conditions to perform several efficient oxidative modifications of flavonoids. Fine-tuning of the reaction conditions allowed remarkably selective modifications of these compounds. At room temperature, IBX proved to be an excellent reagent for a highly regioselective aromatic hydroxylation of monohydroxylated flavanones and flavones, generating the corresponding catecholic derivatives showing high antioxidant activity. At 90 degrees C, IBX efficiently dehydrogenated a large panel of methoxylated flavanones to their corresponding flavones exhibiting anticancer activity. IBX polystyrene has also been utilised to increase the recovery of highly polar compounds. Following the first oxidation, the reagent was recovered and reused in several runs without loss of efficiency and selectivity. The first example of an application of IBX polystyrene in a dehydrogenation reaction has been described. (c) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.06.014
• 作为产物：
  描述：

  6-羟基黄烷酮 在 2-碘酰基苯甲酸 作用下， 以 二甲基亚砜 为溶剂， 反应 1.0h， 以95%的产率得到5,6-Dihydroxy-flavanon
  参考文献：
  名称：

  Selective and efficient oxidative modifications of flavonoids with 2-iodoxybenzoic acid (IBX)

  摘要：

  2-Iodoxybenzoic acid (IBX), a mild and efficient hypervalent iodine oxidant, has been utilised in different reaction conditions to perform several efficient oxidative modifications of flavonoids. Fine-tuning of the reaction conditions allowed remarkably selective modifications of these compounds. At room temperature, IBX proved to be an excellent reagent for a highly regioselective aromatic hydroxylation of monohydroxylated flavanones and flavones, generating the corresponding catecholic derivatives showing high antioxidant activity. At 90 degrees C, IBX efficiently dehydrogenated a large panel of methoxylated flavanones to their corresponding flavones exhibiting anticancer activity. IBX polystyrene has also been utilised to increase the recovery of highly polar compounds. Following the first oxidation, the reagent was recovered and reused in several runs without loss of efficiency and selectivity. The first example of an application of IBX polystyrene in a dehydrogenation reaction has been described. (c) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.06.014

文献信息

• Chopin; Chadenson, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1957, vol. 244, p. 2727
  作者：Chopin、Chadenson

  DOI：——

  日期：——
• Chadenson; Chopin, Bulletin de la Societe Chimique de France, 1962, p. 1463
  作者：Chadenson、Chopin

  DOI：——

  日期：——
• Selective and efficient oxidative modifications of flavonoids with 2-iodoxybenzoic acid (IBX)
  作者：Maurizio Barontini、Roberta Bernini、Fernanda Crisante、Giancarlo Fabrizi

  DOI：10.1016/j.tet.2010.06.014

  日期：2010.8

  2-Iodoxybenzoic acid (IBX), a mild and efficient hypervalent iodine oxidant, has been utilised in different reaction conditions to perform several efficient oxidative modifications of flavonoids. Fine-tuning of the reaction conditions allowed remarkably selective modifications of these compounds. At room temperature, IBX proved to be an excellent reagent for a highly regioselective aromatic hydroxylation of monohydroxylated flavanones and flavones, generating the corresponding catecholic derivatives showing high antioxidant activity. At 90 degrees C, IBX efficiently dehydrogenated a large panel of methoxylated flavanones to their corresponding flavones exhibiting anticancer activity. IBX polystyrene has also been utilised to increase the recovery of highly polar compounds. Following the first oxidation, the reagent was recovered and reused in several runs without loss of efficiency and selectivity. The first example of an application of IBX polystyrene in a dehydrogenation reaction has been described. (c) 2010 Elsevier Ltd. All rights reserved.