2,4-Dimethyl-5-oximinohexanenitrile | 139908-26-2

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 2,4-Dimethyl-5-oximinohexanenitrile
• 英文别名: 5-Hydroxyimino-2,4-dimethylhexanenitrile；5-hydroxyimino-2,4-dimethylhexanenitrile
• CAS: 139908-26-2
• 化学式: C₈H₁₄N₂O
• 分子量: 154.212
• InChiKey: FAPCZZLJUAVPRL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  56.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,4-Dimethyl-5-oximinohexanenitrile 在 sodium hydroxide 、 乙酰氯 作用下， 反应 5.0h， 生成 2,3,5-trimethyl-6-aminopyridine
  参考文献：
  名称：

  Synthesis of 6-substituted 2-(N-acetylamino)pyridines and 2-aminopyridines by cyclization of 5-oximinoalkanenitriles

  摘要：

  Oxime derivatives of 5-oxoalkanenitriles (C6 chain or longer) were cyclized in most cases with a combination of AcCl and Ac2O, or Ac2O and HCl to 6-substituted 2-(N-acetylamino)pyridines. hydrolysis gave the corresponding 2-aminopyridines in overall yields of 40-65 %, with the exception of pyridine 3e. Oxime derivatives of 5-oxopentanenitriles did not cyclize but gave glutaronitriles instead. In some experiments with 5-oximinohexanenitrile(1a),2,4-dimethyl-5-(2-cyanoethyl)oxazole (9)was detected in addition to the main product, 2-(N-acetylamino)-6-methylpyridine(2a). Formation of these compounds can be explained on the basis of a common intermediate 7 formed through rearrangement of the O-acetylated 5-oximinohexanenitrile (4).

  DOI：

  10.1021/jo00056a021
• 作为产物：
  描述：

  2,4-二甲基-5-氧代己腈 在 sodium hydroxide 、 硫酸羟胺 作用下， 反应 2.0h， 生成 2,4-Dimethyl-5-oximinohexanenitrile
  参考文献：
  名称：

  Synthesis of 6-substituted 2-(N-acetylamino)pyridines and 2-aminopyridines by cyclization of 5-oximinoalkanenitriles

  摘要：

  Oxime derivatives of 5-oxoalkanenitriles (C6 chain or longer) were cyclized in most cases with a combination of AcCl and Ac2O, or Ac2O and HCl to 6-substituted 2-(N-acetylamino)pyridines. hydrolysis gave the corresponding 2-aminopyridines in overall yields of 40-65 %, with the exception of pyridine 3e. Oxime derivatives of 5-oxopentanenitriles did not cyclize but gave glutaronitriles instead. In some experiments with 5-oximinohexanenitrile(1a),2,4-dimethyl-5-(2-cyanoethyl)oxazole (9)was detected in addition to the main product, 2-(N-acetylamino)-6-methylpyridine(2a). Formation of these compounds can be explained on the basis of a common intermediate 7 formed through rearrangement of the O-acetylated 5-oximinohexanenitrile (4).

  DOI：

  10.1021/jo00056a021

文献信息

• Synthesis of 6-substituted 2-(N-acetylamino)pyridines and 2-aminopyridines by cyclization of 5-oximinoalkanenitriles
  作者：Robert J. Vijn、Henricus J. Arts、Peter J. Maas、Anna M. Castelijns

  DOI：10.1021/jo00056a021

  日期：1993.2

  Oxime derivatives of 5-oxoalkanenitriles (C6 chain or longer) were cyclized in most cases with a combination of AcCl and Ac2O, or Ac2O and HCl to 6-substituted 2-(N-acetylamino)pyridines. hydrolysis gave the corresponding 2-aminopyridines in overall yields of 40-65 %, with the exception of pyridine 3e. Oxime derivatives of 5-oxopentanenitriles did not cyclize but gave glutaronitriles instead. In some experiments with 5-oximinohexanenitrile(1a),2,4-dimethyl-5-(2-cyanoethyl)oxazole (9)was detected in addition to the main product, 2-(N-acetylamino)-6-methylpyridine(2a). Formation of these compounds can be explained on the basis of a common intermediate 7 formed through rearrangement of the O-acetylated 5-oximinohexanenitrile (4).