1-dimethylamino-trans-2,6-dimethylpiperidine

• 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: 1-dimethylamino-trans-2,6-dimethylpiperidine
• 化学式: C₉H₂₀N₂
• 分子量: 156.271
• InChiKey: IHCBRMTWGXELFD-RKDXNWHRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.73
• 重原子数：
  11.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  6.48
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  2,6-庚二酮 、 偏二甲肼 在 氢氧化钾 、 三乙酰氧基硼氢化钠 、 溶剂黄146 作用下， 以 乙腈 为溶剂， 以10%的产率得到3-甲基-2-环己烯-1-酮
  参考文献：
  名称：

  Diastereoselective synthesis of 2,5-dimethylpyrrolidines and 2,6-dimethylpiperidines by reductive amination of 2,5-hexanedione and 2,6-heptanedione with hydride reagents

  摘要：

  The reductive amination of 2,5-hexanedione and 2,6-heptanedione with ammonia and primary amines in the presence of hydride reagents afforded 2,5-dimethylpyrrolidines and 2,6-dimethylpiperidines with variable diastereoselectivity, as the cis/trans ratio was affected by the size of the ring formed and the steric and electronic properties of the nitrogen substituent. Increasing the bulkiness of the nitrogen substituent, the cis pyrrolidines and the bans-piperidines were obtained with enhanced selectivity.

  DOI：

  10.1016/s0040-4020(01)85010-9

文献信息

• Diastereoselective synthesis of 2,5-dimethylpyrrolidines and 2,6-dimethylpiperidines by reductive amination of 2,5-hexanedione and 2,6-heptanedione with hydride reagents
  作者：Carla Boga、Francesco Manescalchi、Diego Savoia

  DOI：10.1016/s0040-4020(01)85010-9

  日期：1994.4

  The reductive amination of 2,5-hexanedione and 2,6-heptanedione with ammonia and primary amines in the presence of hydride reagents afforded 2,5-dimethylpyrrolidines and 2,6-dimethylpiperidines with variable diastereoselectivity, as the cis/trans ratio was affected by the size of the ring formed and the steric and electronic properties of the nitrogen substituent. Increasing the bulkiness of the nitrogen substituent, the cis pyrrolidines and the bans-piperidines were obtained with enhanced selectivity.