3,3-diethyl-3,4,5,6-tetrahydropyridine | 67625-92-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 3,3-diethyl-3,4,5,6-tetrahydropyridine
• 英文别名: 5,5-diethyl-3,4-dihydro-2H-pyridine
• CAS: 67625-92-7
• 化学式: C₉H₁₇N
• 分子量: 139.241
• InChiKey: FIEBBCHIBMDYIK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  12.4
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3,3-diethyl-3,4,5,6-tetrahydropyridine 在 palladium on activated charcoal 氢气 作用下， 以 乙醇 为溶剂， 反应 3.0h， 以97%的产率得到3,3-diethyl piperidine
  参考文献：
  名称：

  Liebowitz; Belair; Witiak, European Journal of Medicinal Chemistry, 1986, vol. 21, # 5, p. 439 - 444

  摘要：

  DOI：
• 作为产物：
  描述：

  4-氰基-2,2-二乙基丁醛 在 盐酸 、 sodium hydroxide 、 lithium aluminium tetrahydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 8.0h， 生成 3,3-diethyl-3,4,5,6-tetrahydropyridine
  参考文献：
  名称：

  Liebowitz; Belair; Witiak, European Journal of Medicinal Chemistry, 1986, vol. 21, # 5, p. 439 - 444

  摘要：

  DOI：

文献信息

• Synthesis of novel pipecolic acid derivatives: a multicomponent approach from 3,4,5,6-tetrahydropyridines
  作者：Wolfgang Maison、Arne Lützen、Marc Kosten、Imre Schlemminger、Ole Westerhoff、Jürgen Martens

  DOI：10.1039/a905119h

  日期：——

  A simple approach to several derivatives of pipecolic acid is via a multicomponent reaction starting from cyclic imines 2, which are synthesized on a large scale and with different substitution patterns. The protected amino acids 3 are formed in high yields. In cases where chiral imines are used the target compounds are obtained with remarkable diastereoselectivity. Bisamides 3 serve as versatile precursors for the preparation of a wide range of amino acid derivatives. Different methods of hydrolysis of 3 lead to the free pipecolic acids or its derivatives. Employment of methanol or ethanethiol as a nucleophile in the acid-mediated conversion of enamides 3 results in N-acylated amino acid esters 5. Furthermore a method for the resolution of the obtained racemic α-amino acids via diastereomeric salt formation is described.

  一种简单的方法用于多种派克酸衍生物的合成，是通过从环状亚胺2开始的多组分反应，这些环状亚胺可以大规模合成并具有不同的取代模式。保护的氨基酸3以高产率生成。当使用手性亚胺时，目标化合物以显著的非对映体选择性获得。双酰胺3作为多功能的前体，用于制备多种氨基酸衍生物。对3的不同水解方法可以生成游离的派克酸或其衍生物。在酸介导下，使用甲醇或乙硫醇作为亲核试剂对烯酰胺3进行转化，得到N-酰基氨基酸酯5。此外，还描述了一种通过非对映体盐形成来分离获得的外消旋α-氨基酸的方法。
• Synthesis of novel pipecolic acid derivatives. Part 2. Addition of trimethylsilyl cyanide to 3,4,5,6-tetrahydropyridines
  作者：Ole Westerhoff、Arne Lützen、Wolfgang Maison、Marc Kosten、Jürgen Martens

  DOI：10.1039/b009112j

  日期：——

  The synthesis of alkyl- and aryl-substituted derivatives of pipecolic acid (piperidine-2-carboxylic acid) by a modified Strecker protocol is described. Addition of trimethylsilyl cyanide (TMSCN) to various tetrahydropyridines 1 and subsequent hydrolysis of the obtained α-amino nitriles 2 yielded pipecolic acid derivatives 3. Addition of TMSCN to cyclic imines 1 proceeded rapidly and led to α-amino nitriles in excellent yields without any necessary further purification. Almost quantitative diastereoselectivity for the formation of 2,6-trans-substituted amino nitrile 2g was observed at low temperature, when chiral imine 1g was used as reactant. Acidic hydrolysis of α-amino nitriles 2 yielded the corresponding amino acids 3 in good to excellent yields. Furthermore, an efficient protocol for the optical resolution of N-formylated derivatives of pipecolic acid by separation of diastereomeric norephedrinium salts is described.

  描述了一种通过改进的斯特雷克合成法合成烷基-和芳基取代的哌啶-2-羧酸（皮啶酸）衍生物。将三甲基硅基氰化物（TMSCN）添加到各种四氢吡啶1中，经过水解得到的α-氨基腈2生成了哌啶酸衍生物3。TMSCN与环状亚胺1的反应迅速进行，生成了α-氨基腈，产率极佳，无需进一步净化。在低温下，当使用手性亚胺1g作为反应物时，观察到2,6-反式取代的氨基腈2g的绝对立体选择性几乎是定量的。α-氨基腈2的酸性水解得到相应的氨基酸3，产率良好到优秀。此外，还描述了一种有效的光学分辨法，用于通过分离二醇异构体盐来分离N-甲酰化的哌啶酸衍生物。
• The Synthesis of Novel Cyclic β-Amino Acids as Intermediates for the Preparation of Bicyclic β-Lactams
  作者：Wolfgang Maison、Marc Kosten、Audrey Charpy、Jürgen Kintscher-Langenhagen、Imre Schlemminger、Arne Lützen、Ole Westerhoff、Jürgen Martens

  DOI：10.1002/(sici)1099-0690(199909)1999:9<2433::aid-ejoc2433>3.0.co;2-x

  日期：1999.9

  homopipecolic acid are prepared by α-amino alkylation of malonic acid with cyclic imines 6 and 7. These are prepared on a large scale and with different substitution patterns. The β-amino acids 8 and 9 were formed in high yield and with remarkable diastereoselectivity if chiral imines are used as starting materials. The diastereoselectivity of the amino alkylation leading to homopipecolic acid analogues

  通过丙二酸与环状亚胺 6 和 7 的 α-氨基烷基化制备了高哌啶酸的几种衍生物。这些是大规模制备的，具有不同的取代模式。如果使用手性亚胺作为起始原料，β-氨基酸 8 和 9 会以高产率和显着的非对映选择性形成。通过差向异构化实验将导致高哌啶酸类似物的氨基烷基化的非对映选择性与噻唑烷乙酸的非对映选择性进行比较。描述了通过形成非对映体盐来拆分获得的外消旋 β-氨基酸的方法。β-氨基酸 9 和 15 被转化为它们相应的碳酰苯丙胺类似物 14 和异戊烷 16。
• Total Synthesis of (−)-Rhazinilam:  Asymmetric C−H Bond Activation via the Use of a Chiral Auxiliary
  作者：James A. Johnson、Ning Li、Dalibor Sames

  DOI：10.1021/ja026130k

  日期：2002.6.1

  (-)-rhazinilam was synthesized in three major steps, namely the pyrrole synthesis, selective C[bond]H bond activation, and direct macrolactam formation. The key step involved asymmetric C[bond]H bond functionalization (dehydrogenation) of the diethyl group segment in intermediate 6. This was achieved by the attachment of chiral platinum complexes to the proximal nitrogen atom. A high degree of selectivity

  抗肿瘤剂 (-)-rhazinilam 在三个主要步骤中合成，即吡咯合成、选择性 C[键]H 键活化和直接大环内酰胺形成。关键步骤涉及中间体 6 中二乙基段的不对称 C[键]H 键官能化（脱氢）。这是通过将手性铂配合物连接到近端氮原子上来实现的。通过使用恶唑啉基酮手性助剂实现了高度的选择性 (60-75% ee)。
• Synthesis of cyclic imines via ethylenetetramethyldisilyl-protected ω-aminoimines. Application to the synthesis of alkaloids
  作者：Norbert G. De Kimpe、Marian A. Kepppens、Christian V. Stevens

  DOI：10.1016/s0040-4039(00)60659-7

  日期：1993.9

  Cyclic imines, including several alkaloids such as myosmine, anabaseine and apoferrorosamine, were synthesized by α-alkylation of imines with ethylenetetramethyldisilyl-protected ω-bromoamines, followed by ring closure.

  通过用亚乙基四甲基二甲硅烷基保护的ω-溴胺将亚胺进行α-烷基化，然后闭环，合成了环亚胺，包括几种生物碱，如肌氨酸，天麻碱和apoferrorosamine。