2-甲基哌啶-1,2-二腈 | 1024685-05-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 2-甲基哌啶-1,2-二腈
• 英文名称: 2-methylpiperidine-1,2-dicarbonitrile
• CAS: 1024685-05-9
• 化学式: C₈H₁₁N₃
• 分子量: 149.195
• InChiKey: YXJMLJDWGHMIPC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  50.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-甲氧基-2-甲基哌啶-1-腈 、 三甲基氰硅烷 在 四氯化钛 作用下， 以 二氯甲烷 为溶剂， 以65%的产率得到2-甲基哌啶-1,2-二腈
  参考文献：
  名称：

  High regioselectivity in electrochemical α-methoxylation of N-protected cyclic amines

  摘要：

  N-Protecting groups of alpha-substituted cyclic amines strongly affected the regioselectivity in electrochemical methoxylation of these compounds. Namely, N-acyl derivatives were transformed into alpha'-methoxylated compounds, while N-cyano derivatives changed into alpha-methoxylated derivatives. Furthermore, Lewis acid catalyzed nucleophilic substitution of the alpha-methoxylated compounds protected with cyano group afforded alpha,alpha-disubstituted cyclic amines. (c) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2008.02.060

文献信息

• Direct electrochemical α-cyanation of N-protected cyclic amines
  作者：Samuel Shikuku Libendi、Yosuke Demizu、Osamu Onomura

  DOI：10.1039/b816598j

  日期：——

  α-Cyanation of N-protected cyclic amines was achieved using a direct electrochemical method. Unsubstituted N-protected cyclic amines were easily cyanated at the α-position using an undivided cell in high yields; moreover, α-cyanation of α′-substituted pyrrolidine and α′-,β′- or γ-substituted piperidines smoothly proceeded in high yield and with high to excellent diastereoselectivity. α-Substituted N-cyano-pyrrolidines and -piperidines were also cyanated at the more substituted position (the α-position) using a divided cell with high yield and high regioselectivity.

  通过直接电化学方法，实现了N-保护的环状胺的α-氰化。未取代的N-保护环状胺在无隔膜电池中易于在α位进行氰化，产率很高；此外，α'-取代的吡咯烷和α'、β'或γ-取代的哌啶也能顺利进行高产率的α-氰化，并具有高度至优异的非对映选择性。α-取代的N-氰基吡咯烷和哌啶在有隔膜电池中也能在更取代的位置（α位）进行氰化，产率高且具有高区域选择性。