3,4-dihydroxy-2-methoxybenzonitrile | 863332-39-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 3,4-dihydroxy-2-methoxybenzonitrile
• CAS: 863332-39-2
• 化学式: C₈H₇NO₃
• 分子量: 165.148
• InChiKey: WZTKPBNIZGVJLB-UHFFFAOYSA-N

物化性质

• 熔点：
  136-138 °C
• 沸点：
  385.4±42.0 °C(Predicted)
• 密度：
  1.41±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  73.5
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3,4-dihydroxy-2-methoxybenzonitrile 、 甲醇 在 1,1-二苯基-2-苦味酰肼 作用下， 以 氘代甲醇 、 丙酮 为溶剂， 反应 0.17h， 生成 3-Hydroxy-2,3-dimethoxy-4-oxo-cyclohexa-1,5-dienecarbonitrile
  参考文献：
  名称：

  Effects of electron-withdrawing substituents on DPPH radical scavenging reactions of protocatechuic acid and its analogues in alcoholic solvents

  摘要：

  The DPPH (2,2-diphenyl-l-picrylhydrazyl) radical scavenging activity of protocatechuic acid (3,4-dihydroxybenzoic acid) and its related catechols was examined. Compounds possessing strong electron-withdrawing substituents showed high activity. NMR analysis of the reaction mixtures of catechols and DPPH radical in methanol showed the formation of methanol adducts. The results suggest that high radical scavenging activity of catechols in alcohol is due to a nucleophilic addition of an alcohol molecule on o-quinones, which leads to a regeneration of a catechol structure. Furthermore, the radical scavenging activity in alcohols would largely depend on the electron-withdrawing/donating substituents, Since they affect the susceptibility toward nucleophilic attacks on o-quinone. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.06.040
• 作为产物：
  描述：

  2,3,4-三羟基苯甲醛 在 盐酸 、 N,N-二异丙基乙胺 、 hydroxylamine-O-sulfonic acid 作用下， 以 甲醇 、 正己烷 、 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 4.5h， 生成 3,4-dihydroxy-2-methoxybenzonitrile
  参考文献：
  名称：

  Effects of electron-withdrawing substituents on DPPH radical scavenging reactions of protocatechuic acid and its analogues in alcoholic solvents

  摘要：

  The DPPH (2,2-diphenyl-l-picrylhydrazyl) radical scavenging activity of protocatechuic acid (3,4-dihydroxybenzoic acid) and its related catechols was examined. Compounds possessing strong electron-withdrawing substituents showed high activity. NMR analysis of the reaction mixtures of catechols and DPPH radical in methanol showed the formation of methanol adducts. The results suggest that high radical scavenging activity of catechols in alcohol is due to a nucleophilic addition of an alcohol molecule on o-quinones, which leads to a regeneration of a catechol structure. Furthermore, the radical scavenging activity in alcohols would largely depend on the electron-withdrawing/donating substituents, Since they affect the susceptibility toward nucleophilic attacks on o-quinone. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.06.040

文献信息

• Effects of electron-withdrawing substituents on DPPH radical scavenging reactions of protocatechuic acid and its analogues in alcoholic solvents
  作者：Shizuka Saito、Jun Kawabata

  DOI：10.1016/j.tet.2005.06.040

  日期：2005.8

  The DPPH (2,2-diphenyl-l-picrylhydrazyl) radical scavenging activity of protocatechuic acid (3,4-dihydroxybenzoic acid) and its related catechols was examined. Compounds possessing strong electron-withdrawing substituents showed high activity. NMR analysis of the reaction mixtures of catechols and DPPH radical in methanol showed the formation of methanol adducts. The results suggest that high radical scavenging activity of catechols in alcohol is due to a nucleophilic addition of an alcohol molecule on o-quinones, which leads to a regeneration of a catechol structure. Furthermore, the radical scavenging activity in alcohols would largely depend on the electron-withdrawing/donating substituents, Since they affect the susceptibility toward nucleophilic attacks on o-quinone. (c) 2005 Elsevier Ltd. All rights reserved.