(2S,5R)-5-(hydroxymethyl)-1-methylpiperidine-2-carbonitrile | 132462-26-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: (2S,5R)-5-(hydroxymethyl)-1-methylpiperidine-2-carbonitrile
• CAS: 132462-26-1；132462-30-7
• 化学式: C₈H₁₄N₂O
• 分子量: 154.212
• InChiKey: ZCFHCYSMCPQWQP-SFYZADRCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  47.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2S,5R)-5-(hydroxymethyl)-1-methylpiperidine-2-carbonitrile 、 苯甲酰氯 在 吡啶 作用下， 生成 1-Methyl-5-<(benzoyloxy)methyl>-2-piperidinecarbonitrile
  参考文献：
  名称：

  Regioselective oxidation of piperidine-3 derivatives: a synthetic route to 2,5-substituted piperidines

  摘要：

  Mercuric acetate oxidation of 1-benzyl-3,3-(ethylenedioxy)piperidine (1) and of 3-CO2Et- and 3-CH2OH-substituted piperidines 7-9 was shown to occur regioselectively at the 6-position. Trapping of the resulting 6-iminium ions with cyanide yielded the corresponding 5-substituted 2-piperidinecarbonitriles 5, 10, and 11. However, the 2-iminium ion was formed in the reaction of the N-oxide of 1 with trifluoroacetic anydride; with cyanide this afforded the regioisomeric 3,3-(ethylenedioxy)-2-piperidinecarbonitrile (2). Plausible mechanisms are advanved to explain this contrasting behavior. 1-Benzyl-5,5-(ethylenedioxy)-2-piperidinecarbonitrile (5) was transformed into other piperidine-2,5 derivatives by reaction of the alpha-amino nitrile anion with electrophoresis, followed by reductive decyanation.

  DOI：

  10.1021/jo00007a025
• 作为产物：
  描述：

  1-甲基哌啶-3-甲醇 、 氰化钾 在 mercury(II) diacetate 作用下， 生成 (2S,5R)-5-(hydroxymethyl)-1-methylpiperidine-2-carbonitrile 、 (2S,5S)-5-(hydroxymethyl)-1-methylpiperidine-2-carbonitrile
  参考文献：
  名称：

  Regioselective oxidation of piperidine-3 derivatives: a synthetic route to 2,5-substituted piperidines

  摘要：

  Mercuric acetate oxidation of 1-benzyl-3,3-(ethylenedioxy)piperidine (1) and of 3-CO2Et- and 3-CH2OH-substituted piperidines 7-9 was shown to occur regioselectively at the 6-position. Trapping of the resulting 6-iminium ions with cyanide yielded the corresponding 5-substituted 2-piperidinecarbonitriles 5, 10, and 11. However, the 2-iminium ion was formed in the reaction of the N-oxide of 1 with trifluoroacetic anydride; with cyanide this afforded the regioisomeric 3,3-(ethylenedioxy)-2-piperidinecarbonitrile (2). Plausible mechanisms are advanved to explain this contrasting behavior. 1-Benzyl-5,5-(ethylenedioxy)-2-piperidinecarbonitrile (5) was transformed into other piperidine-2,5 derivatives by reaction of the alpha-amino nitrile anion with electrophoresis, followed by reductive decyanation.

  DOI：

  10.1021/jo00007a025

文献信息

• Regioselective oxidation of piperidine-3 derivatives: a synthetic route to 2,5-substituted piperidines
  作者：Frans Compernolle、M. Ashty Saleh、Stefan Van den Branden、Suzanne Toppet、Georges Hoornaert

  DOI：10.1021/jo00007a025

  日期：1991.3

  Mercuric acetate oxidation of 1-benzyl-3,3-(ethylenedioxy)piperidine (1) and of 3-CO2Et- and 3-CH2OH-substituted piperidines 7-9 was shown to occur regioselectively at the 6-position. Trapping of the resulting 6-iminium ions with cyanide yielded the corresponding 5-substituted 2-piperidinecarbonitriles 5, 10, and 11. However, the 2-iminium ion was formed in the reaction of the N-oxide of 1 with trifluoroacetic anydride; with cyanide this afforded the regioisomeric 3,3-(ethylenedioxy)-2-piperidinecarbonitrile (2). Plausible mechanisms are advanved to explain this contrasting behavior. 1-Benzyl-5,5-(ethylenedioxy)-2-piperidinecarbonitrile (5) was transformed into other piperidine-2,5 derivatives by reaction of the alpha-amino nitrile anion with electrophoresis, followed by reductive decyanation.