Acridine 3,4-oxide | 155007-32-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: Acridine 3,4-oxide
• 英文别名: 1a,9b-Dihydrooxireno[2,3-c]acridine
• CAS: 155007-32-2
• 化学式: C₁₃H₉NO
• 分子量: 195.221
• InChiKey: PWFMSZNZUGSOCV-UHFFFAOYSA-N

物化性质

• 沸点：
  392.7±30.0 °C(Predicted)
• 密度：
  1.330±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  25.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  Acridine 3,4-oxide 在 水 作用下， 以 1,4-二氧六环 为溶剂， 生成 4-羟基吖啶
  参考文献：
  名称：

  Synthesis and Solvolysis of Acridine 1,2- and 3,4-Oxides: Crystal Structure of Acridine 1,2-Oxide

  摘要：

  Acridine 1,2- and 3,4-oxides were synthesized from 3,4- and 1,2-dihydroacridine, respectively, via intermediate bromohydrin acetates. Crystals of acridine 1,2-oxide were sufficiently stable to allow the first determination of X-ray crystallographic structural features of a non-K-region arene oxide. Aqueous alkaline hydrolysis of the acridine 1,2- and 3,4-oxides produced trans-1,2-dihydrorxy-1,2-dihydroacridine and trans-3,4-dihydroxy-3,4-dihydroacridine, respectively. The former dihydrodiol was also obtained by a six-step synthesis from 3,4-dihydroacridine. Acid-catalyzed hydrolysis of acridine 1,2-oxide yielded the corresponding cis- and trans-1,2-dihydrodiols (20%) in addition to 1-hydroxy- (12%) and 2-hydroxyacridine (68%). By contrast, solvolysis of acridine 3,4-oxide under acid conditions gave 4-hydroxyacridine as the exclusive product. pH-rate profiles for hydrolysis of the acridine oxides in 1:9 dioxane-water at 25 degrees C were compared with those for anthracene 1,2-oxide, naphthalene 1,2-oxide, and quinoline 5,6- and 7,8-oxides. Second-order rate constants for the hydronium ion-catalyzed ring opening of anthracene 1,2-, acridine 3,4-, and acridine 1,2-oxide are 585, 7.81, and 0.45 M(-1) s(-2), respectively, and are 3-5 times larger than the rate constants for the corresponding naphthalene 1,2-, quinoline 7,8-, and quinoline 5,6-oxides. Rate constants for uncatalyzed ring opening of anthracene 1,2- and acridine 3,4-oxides (117 x 10(-5) s(-1) and 2.4 X 10(-5) s(-1), respectively) are about two to three times larger than the corresponding rate constants for naphthalene 1,2- and quinoline 7,8-oxides, whereas the rate of nucleophilic ring opening by hydroxide ion to give the trans-dihydrodiols is accelerated by less than a factor of 2 for the acridine oxides as compared with their quinoline analogs. The pH-rate profiles for solvolysis of the acridine oxides, like those of the quinoline oxides, exhibit a pH-independent region at pH values below the pK(a) of the ring nitrogen that is attributed to formation of an unreactive N-protonated species.

  DOI：

  10.1021/jo00084a013
• 作为产物：
  描述：

  1,2-Dihydroacridin 在 偶氮二异丁腈 N-溴代丁二酰亚胺(NBS) 、 sodium methylate 、 N-溴代乙酰胺 作用下， 以 四氢呋喃 、 四氯化碳 、 溶剂黄146 为溶剂， 反应 8.0h， 生成 Acridine 3,4-oxide
  参考文献：
  名称：

  Synthesis and Solvolysis of Acridine 1,2- and 3,4-Oxides: Crystal Structure of Acridine 1,2-Oxide

  摘要：

  Acridine 1,2- and 3,4-oxides were synthesized from 3,4- and 1,2-dihydroacridine, respectively, via intermediate bromohydrin acetates. Crystals of acridine 1,2-oxide were sufficiently stable to allow the first determination of X-ray crystallographic structural features of a non-K-region arene oxide. Aqueous alkaline hydrolysis of the acridine 1,2- and 3,4-oxides produced trans-1,2-dihydrorxy-1,2-dihydroacridine and trans-3,4-dihydroxy-3,4-dihydroacridine, respectively. The former dihydrodiol was also obtained by a six-step synthesis from 3,4-dihydroacridine. Acid-catalyzed hydrolysis of acridine 1,2-oxide yielded the corresponding cis- and trans-1,2-dihydrodiols (20%) in addition to 1-hydroxy- (12%) and 2-hydroxyacridine (68%). By contrast, solvolysis of acridine 3,4-oxide under acid conditions gave 4-hydroxyacridine as the exclusive product. pH-rate profiles for hydrolysis of the acridine oxides in 1:9 dioxane-water at 25 degrees C were compared with those for anthracene 1,2-oxide, naphthalene 1,2-oxide, and quinoline 5,6- and 7,8-oxides. Second-order rate constants for the hydronium ion-catalyzed ring opening of anthracene 1,2-, acridine 3,4-, and acridine 1,2-oxide are 585, 7.81, and 0.45 M(-1) s(-2), respectively, and are 3-5 times larger than the rate constants for the corresponding naphthalene 1,2-, quinoline 7,8-, and quinoline 5,6-oxides. Rate constants for uncatalyzed ring opening of anthracene 1,2- and acridine 3,4-oxides (117 x 10(-5) s(-1) and 2.4 X 10(-5) s(-1), respectively) are about two to three times larger than the corresponding rate constants for naphthalene 1,2- and quinoline 7,8-oxides, whereas the rate of nucleophilic ring opening by hydroxide ion to give the trans-dihydrodiols is accelerated by less than a factor of 2 for the acridine oxides as compared with their quinoline analogs. The pH-rate profiles for solvolysis of the acridine oxides, like those of the quinoline oxides, exhibit a pH-independent region at pH values below the pK(a) of the ring nitrogen that is attributed to formation of an unreactive N-protonated species.

  DOI：

  10.1021/jo00084a013

文献信息

• Synthesis and Solvolysis of Acridine 1,2- and 3,4-Oxides: Crystal Structure of Acridine 1,2-Oxide
  作者：Derek R. Boyd、R. Jeremy H. Davies、Lynne Hamilton、John J. McCullough、John F. Malone、H. Patricia Porter、Allison Smith、John M. Carl、Jane M. Sayer、Donald M. Jerina

  DOI：10.1021/jo00084a013

  日期：1994.3

  Acridine 1,2- and 3,4-oxides were synthesized from 3,4- and 1,2-dihydroacridine, respectively, via intermediate bromohydrin acetates. Crystals of acridine 1,2-oxide were sufficiently stable to allow the first determination of X-ray crystallographic structural features of a non-K-region arene oxide. Aqueous alkaline hydrolysis of the acridine 1,2- and 3,4-oxides produced trans-1,2-dihydrorxy-1,2-dihydroacridine and trans-3,4-dihydroxy-3,4-dihydroacridine, respectively. The former dihydrodiol was also obtained by a six-step synthesis from 3,4-dihydroacridine. Acid-catalyzed hydrolysis of acridine 1,2-oxide yielded the corresponding cis- and trans-1,2-dihydrodiols (20%) in addition to 1-hydroxy- (12%) and 2-hydroxyacridine (68%). By contrast, solvolysis of acridine 3,4-oxide under acid conditions gave 4-hydroxyacridine as the exclusive product. pH-rate profiles for hydrolysis of the acridine oxides in 1:9 dioxane-water at 25 degrees C were compared with those for anthracene 1,2-oxide, naphthalene 1,2-oxide, and quinoline 5,6- and 7,8-oxides. Second-order rate constants for the hydronium ion-catalyzed ring opening of anthracene 1,2-, acridine 3,4-, and acridine 1,2-oxide are 585, 7.81, and 0.45 M(-1) s(-2), respectively, and are 3-5 times larger than the rate constants for the corresponding naphthalene 1,2-, quinoline 7,8-, and quinoline 5,6-oxides. Rate constants for uncatalyzed ring opening of anthracene 1,2- and acridine 3,4-oxides (117 x 10(-5) s(-1) and 2.4 X 10(-5) s(-1), respectively) are about two to three times larger than the corresponding rate constants for naphthalene 1,2- and quinoline 7,8-oxides, whereas the rate of nucleophilic ring opening by hydroxide ion to give the trans-dihydrodiols is accelerated by less than a factor of 2 for the acridine oxides as compared with their quinoline analogs. The pH-rate profiles for solvolysis of the acridine oxides, like those of the quinoline oxides, exhibit a pH-independent region at pH values below the pK(a) of the ring nitrogen that is attributed to formation of an unreactive N-protonated species.