2-phenyl-1-(pyridin-2-yl)piperidine | 1261144-92-6

• 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: 2-phenyl-1-(pyridin-2-yl)piperidine
• 英文别名: 2-phenyl-N-(pyridin-2-yl)piperidine；2-(2-phenylpiperidin-1-yl)pyridine；2-(2-Phenylpiperidin-1-yl)pyridine
• CAS: 1261144-92-6
• 化学式: C₁₆H₁₈N₂
• 分子量: 238.332
• InChiKey: ZHHCTWFRONYSAZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  16.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-phenyl-1-(pyridin-2-yl)piperidine 在 盐酸 、 palladium 10% on activated carbon 、 氢气 、 一水合肼 、 溶剂黄146 作用下， 以 水 、 异丙醇 为溶剂， 反应 18.5h， 生成 2-苯基哌啶
  参考文献：
  名称：

  Removal of the Pyridine Directing Group from α-SubstitutedN-(Pyridin-2-yl)piperidines Obtained via Directed Ru-Catalyzed sp³C–H Functionalization

  摘要：

  Two strategies, "hydrogenation-hydride reduction" and. "quaternization-hydride reduction", are reported, that make use of mild reaction conditions (room temperature) to efficiently remove the N-pyridin-2-yl directing group from a diverse set of C-2-substituted piperidines that were synthesized through directed Ru-catalyzed Sp(3) C-H functionalization. The deprotected products are obtained in moderate to good overall yields irrespective of the strategy followed, indicating that both methods are generally. equally effective. Only in the case of 2,6-disubstituted piperidines, could the "quaternization-hydride reduction" strategy not be used. The "hydrogenation-hydride reduction" protocol was successfully applied to trans- and cis-2-methyl-N-(pyridin-2-yl)-6-undecylpiperidine in a short synthetic route toward (+/-)-solenopsin A (trans diastereoisomer) and (+/-)-isosolenopsin A (cis diastereoisomer). The absolute configuration of the enantiomers of these fire: ant alkaloids could be determined via VCD spectroscopy.

  DOI：

  10.1021/jo401521y
• 作为产物：
  描述：

  2-哌啶基吡啶 、 5,5-二甲基-2-苯基-1,3,2-二氧硼杂 在 十二羰基三钌 、 3-乙基-3-戊醇 作用下， 反应 24.0h， 以38%的产率得到2-phenyl-1-(pyridin-2-yl)piperidine
  参考文献：
  名称：

  通过直接过渡金属催化的sp3 C对哌啶进行C-2酰化反应？H激活

  摘要：

  您只需要一个开放的小瓶！环状烷基胺的直接α芳基化反应（请参见方案）需要一个开放的小瓶，因为参与C（sp 3）H活化过程的氢原子最终会以氢气的形式释放出来。关于在直接过渡金属催化的官能化反应中形成氢气的报道仍然很少。小瓶反应证明对这种直接芳构化过程至关重要，因为密封后会发生催化剂失活。

  DOI：

  10.1002/chem.201001887

文献信息

• Ruthenium-Catalyzed α-(Hetero)Arylation of Saturated Cyclic Amines: Reaction Scope and Mechanism
  作者：Aldo Peschiulli、Veerle Smout、Thomas E. Storr、Emily A. Mitchell、Zdeněk Eliáš、Wouter Herrebout、Didier Berthelot、Lieven Meerpoel、Bert U. W. Maes

  DOI：10.1002/chem.201204438

  日期：2013.7.29

  3‐ethyl‐3‐pentanol. A systematic study on the substrate and reagent scope of this transformation is disclosed in this paper. The effect of substitution on both the piperidine ring and the arylboronic ester has been investigated. Smaller (pyrrolidine) and larger (azepane) saturated ring systems, as well as benzoannulated derivatives, were found to be compatible substrates with the α‐arylation protocol. The successful

  过渡金属催化的SP 3 Ç  ħ激活已成为一个有力的方法来官能化的饱和环状胺。我们的小组最近公开了在α位上的哌啶与氮原子的直接催化芳基化反应。如果在催化量的[Ru 3（CO）12]和一当量的3-乙基-3-戊醇。本文公开了对该转化的底物和试剂范围的系统研究。已经研究了取代对哌啶环和芳基硼酸酯的影响。发现较小的（吡咯烷）和较大的（氮杂环庚烷）饱和环系统以及苯并环化的衍生物是与α-芳基化方案兼容的底物。各种杂芳基硼酸酯作为偶联伙伴的成功使用进一步证明了这种直接官能化方法的强大功能。机理研究允许这个明显的转变的催化循环更好地理解为特色在汝前所未有的直接转移金属化II  ^ h种。
• Directed Ruthenium‐Catalyzed C( <i>sp</i> ³ )H α‐Alkylation of Cyclic Amines Using Dioxolane‐Protected Alkenones
  作者：Artem A. Kulago、Ben F. Van Steijvoort、Emily A. Mitchell、Lieven Meerpoel、Bert U. W. Maes

  DOI：10.1002/adsc.201400117

  日期：2014.5.5

  catalytic system for ruthenium‐catalyzed C(sp3)H α‐alkylation of piperidines with dioxolane‐protected alkenones is reported. Dioxolane protection of the ketone proved crucial to obtain alkylation products. A diverse set of highly substituted piperidines was readily prepared in moderate to good yields via this methodology from easily accessible starting materials (C‐2, C‐3 and C‐4 substituted piperidines)

  对于钌催化C（A催化体系的SP 3）报道H带二氧戊环保护的哌啶烯酮α-烷基化。事实证明，酮的二氧戊环保护对获得烷基化产物至关重要。一组不同的高度取代的哌啶的混合物容易地在温和的制备良好的产率通过从易于获取的起始原料（C-2，C-3和C-4取代的哌啶）中获得这种方法。当该方法应用于具有两个α位的C-3取代的哌啶时，仅观察到单烷基化产物（2,5-二取代）。甚至可以使用具有稠合哌啶部分的双环胺。还证明了成功的引导基团以及保护基团（缩酮）的去除。因此，该方法允许人们进一步衍生和获得迄今未知的官能化环胺衍生物，并将在分子库合成中有用。
• C-2 Arylation of Piperidines through Directed Transition-Metal-Catalyzed sp³CH Activation
  作者：Hana Prokopcová、Sheba D. Bergman、Karel Aelvoet、Veerle Smout、Wouter Herrebout、Benjamin Van der Veken、Lieven Meerpoel、Bert U. W. Maes

  DOI：10.1002/chem.201001887

  日期：2010.11.22

  need is an open vial! The direct α arylation of cyclic alkylamines (see scheme) requires an open vial, as the hydrogen atom involved in the C(sp3)H‐activation process is ultimately released as hydrogen gas. Reports on the formation of hydrogen gas in direct transition‐metal‐catalyzed functionalizations are still rare. Open‐vial reactions proved crucial to this direct arylation procedure as, upon sealing

  您只需要一个开放的小瓶！环状烷基胺的直接α芳基化反应（请参见方案）需要一个开放的小瓶，因为参与C（sp 3）H活化过程的氢原子最终会以氢气的形式释放出来。关于在直接过渡金属催化的官能化反应中形成氢气的报道仍然很少。小瓶反应证明对这种直接芳构化过程至关重要，因为密封后会发生催化剂失活。
• Removal of the Pyridine Directing Group from α-Substituted<i>N</i>-(Pyridin-2-yl)piperidines Obtained via Directed Ru-Catalyzed sp³C–H Functionalization
  作者：Veerle Smout、Aldo Peschiulli、Stefan Verbeeck、Emily A. Mitchell、Wouter Herrebout、Patrick Bultinck、Christophe M. L. Vande Velde、Didier Berthelot、Lieven Meerpoel、Bert U. W. Maes

  DOI：10.1021/jo401521y

  日期：2013.10.4

  Two strategies, "hydrogenation-hydride reduction" and. "quaternization-hydride reduction", are reported, that make use of mild reaction conditions (room temperature) to efficiently remove the N-pyridin-2-yl directing group from a diverse set of C-2-substituted piperidines that were synthesized through directed Ru-catalyzed Sp(3) C-H functionalization. The deprotected products are obtained in moderate to good overall yields irrespective of the strategy followed, indicating that both methods are generally. equally effective. Only in the case of 2,6-disubstituted piperidines, could the "quaternization-hydride reduction" strategy not be used. The "hydrogenation-hydride reduction" protocol was successfully applied to trans- and cis-2-methyl-N-(pyridin-2-yl)-6-undecylpiperidine in a short synthetic route toward (+/-)-solenopsin A (trans diastereoisomer) and (+/-)-isosolenopsin A (cis diastereoisomer). The absolute configuration of the enantiomers of these fire: ant alkaloids could be determined via VCD spectroscopy.