2-methyl-5,5-diphenylpiperidine | 1263316-83-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-methyl-5,5-diphenylpiperidine
• 英文别名: (2S)-2-methyl-5,5-diphenylpiperidine
• CAS: 1263316-83-1
• 化学式: C₁₈H₂₁N
• 分子量: 251.371
• InChiKey: QSPDGPLHCODUEQ-HNNXBMFYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  12
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2,2-diphenyl-5-hexenenitrile 在 lithium aluminium tetrahydride 、 C₂₆H₄₈N₃Si₃Y 作用下， 以 乙醚 、 氘代苯 为溶剂， 反应 18.6h， 生成 2-methyl-5,5-diphenyl-piperidine 、 2-methyl-5,5-diphenylpiperidine
  参考文献：
  名称：

  A novel chiral yttrium complex with a tridentate linked amido-indenyl ligand for intramolecular hydroamination

  摘要：

  一种新的手性硅联接的三齿氨基-茚基配体是由茚和对映纯的1,2-环己二胺开发的。其钇配合物被合成、表征，并用于高效催化非活化烯烃的分子内氢氨化反应，获得了高达97%的对映纯度。

  DOI：

  10.1039/c3cc47006g

文献信息

• <i>C</i>₁-Symmetric Rare-Earth-Metal Aminodiolate Complexes for Intra- and Intermolecular Asymmetric Hydroamination of Alkenes
  作者：Alexander L. Reznichenko、Kai C. Hultzsch

  DOI：10.1021/om3010614

  日期：2013.3.11

  are achieved with catalysts having a methyldiphenylsilyl substituent on the naphtholate moiety. Lanthanum aminodiolate catalysts generated in situ from [LaCH(C6H5)NMe2}3] did not exhibit improved catalytic activity in the intermolecular hydroamination in comparison to the corresponding yttrium and lutetium catalysts. The overall catalytic activities of the aminodiolate complexes are somewhat diminished

  通过[Ln（o -C 6 H 4 CH 2 NMe 2）3 ]（Ln = Y，Lu）和相应的氨基二醇配体的芳烃消除反应制备了一系列新型的C 1-对称氨基二醇盐稀土金属配合物。。NOBIN衍生的氨基二醇酯配体的特征是在萘甲酸酯部分上具有空间要求的三苯基甲硅烷基和甲基二苯基甲硅烷基邻位取代基，以及具有不同空间需求（从叔到三不等）的取代基酚盐部分的三（3,5-二甲苯基）甲硅烷基的正丁基。萘甲酸酯部分上具有三苯基甲硅烷基取代基的配合物在氨基烯烃的加氢胺化/环化中显示出良好的催化活性，而具有甲基二苯基甲硅烷基取代基的配合物则表现出较低的反应性。在（2,2-二苯基戊-4- ）的环化反应中，使用络合物9c - Lu（R 1 = Ph，R 2 = Me，R 3 = SiPh 3），观察到五元环和六元环形成的最高对映选择性。烯基）胺（92％ee，N t = 25 h时200 h –1）和（2,2-二苯基己基-5-烯基）胺（73％ee，N
• <i>C</i>₂-Symmetric Zirconium Bis(Amidate) Complexes with Enhanced Reactivity in Aminoalkene Hydroamination
  作者：Alexander L. Reznichenko、Kai C. Hultzsch

  DOI：10.1021/om9008907

  日期：2010.1.11

  Binaphthalenedicarboxamide zirconium complexes exhibit significantly enhanced catalytic activity in aminoalkene hydroamination reactions with respect to substrate scope (substrates without gem-dialkyl activation; cyclization of aminoheptenes), catalyst loading (as low as 0.5 mol %) and reaction temperatures (as low as 70 °C) compared to previous group 4 metal-based hydroamination catalyst systems.

  在底物范围（没有宝石二烷基活化的底物；氨基庚烯的环化），催化剂负载量（低至0.5 mol％）和反应温度（低至70°C）方面，双萘二甲酸四羧甲酰胺锆配合物在氨基烯烃加氢胺化反应中显示出显着增强的催化活性。 ）与之前的第4组金属基氢化胺化催化剂体系进行比较。
• Highly enantioselective hydroamination to six-membered rings by heterobimetallic catalysts
  作者：Lenard Hussein、Nibadita Purkait、Mustafa Biyikal、Eugenia Tausch、Peter W. Roesky、Siegfried Blechert

  DOI：10.1039/c3cc48874h

  日期：——

  New bimetallic Zn/Zr salen-type systems were employed as catalysts in the asymmetric intramolecular hydroamination reaction. High enantioselectivity for the formation of piperidines of up to 98% ee were observed.

  新的双金属Zn/Zr salen型体系被用作不对称分子内氢氨化反应的催化剂。观察到高达98%对映体过量的哌啶生成的高对映选择性。
• A Chiral Phenoxyamine Magnesium Catalyst for the Enantioselective Hydroamination/Cyclization of Aminoalkenes and Intermolecular Hydroamination of Vinyl Arenes
  作者：Xiaoming Zhang、Thomas J. Emge、Kai C. Hultzsch

  DOI：10.1002/anie.201105079

  日期：2012.1.9

  If Grignard had only known! A chiral magnesium complex catalyzes the intramolecular hydroamination/cyclization of aminoalkenes with high efficiency at temperatures as low as −20 °C and enantioselectivities as high as 93 % ee. The high activity of this system also allows the catalytic intermolecular anti-Markovnikov addition of pyrrolidine and benzylamine to vinyl arenes.

  如果格利雅德只知道！手性镁配合物可在低至-20°C的温度和高达93％ee的对映选择性下高效催化氨基烯烃的分子内加氢胺化/环化反应。该系统的高活性还允许将吡咯烷和苄胺催化分子间抗Markovnikov加成到乙烯基芳烃上。
• Asymmetric hydroamination catalyzed by in situ generated chiral amidate and ureate complexes of zirconium — Probing the role of the tether in ligand design
  作者：Philippa R. Payne、Jason A. Bexrud、David C. Leitch、Laurel L. Schafer

  DOI：10.1139/v11-091

  日期：2011.10

  Simple chiral proligands have been synthesized from inexpensive chiral starting materials. These amidate and ureate ligands support zirconium complexes that successfully catalyze intramolecular hydroamination with up to 26% ee. Several elements necessary for successful ligand design are highlighted and discussed. In particular, the strict control of metal geometry through multidentate tethered ligands is determined to be an essential aspect of future ligand development.

  简单手性前体已经从廉价的手性起始物质合成。这些酰胺和脲配体支持锆配合物，成功催化了高达26%的内分子氢胺化反应。强调和讨论了成功配体设计所需的几个要素。特别是，通过多齿联结配体严格控制金属几何构型被确定为未来配体开发的一个关键方面。