1-(甲氧基苯基甲基)哌啶 | 2238-12-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-(甲氧基苯基甲基)哌啶
• 英文名称: 1-(methoxy(phenyl)methyl)piperidine
• 英文别名: 1-[Methoxy(phenyl)methyl]piperidine
• CAS: 2238-12-2
• 化学式: C₁₃H₁₉NO
• 分子量: 205.3
• InChiKey: KLZSBMXDASORMU-UHFFFAOYSA-N

物化性质

• 沸点：
  81-85 °C(Press: 0.2 Torr)
• 密度：
  1.029±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(甲氧基苯基甲基)哌啶 在 [Rh(1,2-bis(diphenylphosphanyl)butane)(COD)2]BF₄ 氢气 作用下， 以 四氢呋喃 为溶剂， 20.0 ℃ 、5.0 MPa 条件下， 反应 7.0h， 以100%的产率得到1-苄基哌啶
  参考文献：
  名称：

  A Scrutiny on the Reductive Amination of Carbonyl Compounds Catalyzed by Homogeneous Rh(I) Diphosphane Complexes

  摘要：

  The reductive amination of a series of aldehydes with secondary amines and H-2 in the presence of a homogeneous Rh-diphosphane catalyst was studied in order to establish a general mechanism of this reaction and to identify conditions for the improvement of the amine/alcohol ratio in the product. Several possible intermediates as constituents of changing equilibria like half-aminals. N,O-acetals and aminals were observed in the reaction mixture by means of H-1 NMR spectroscopy. In individual trials, these compounds could be successfully hydrogenated under the conditions applied for reductive amination (50 bar H-2 pressure, MeOH). Some evidence is accumulated that half-aminals and N,O-acetals might be key intermediates of the reductive amination. Moreover, it was found that the formation of the undesired product alcohol is likely based on the reduction of the starting carbonyl compound. However, due to numerous equilibria consisting of several intermediates, general conclusions are hard to be drawn. Proof will be given that, in several cases, the efficiency of the reductive amination of aliphatic aldehydes can be significantly improved by prehydrogenation of the cationic [Rh(dppb)(COD)](+) complex.

  DOI：

  10.1002/1615-4169(200202)344:2<200::aid-adsc200>3.0.co;2-4
• 作为产物：
  描述：

  苯甲醛 、 alkaline earth salt of/the/ methylsulfuric acid 在 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 生成 1-(甲氧基苯基甲基)哌啶
  参考文献：
  名称：

  芳族有机锌试剂，仲胺和芳族醛与功能化二芳基甲胺的一步一步三组分偶联

  摘要：

  根据芳族有机锌试剂，仲胺和芳族醛之间的一步三组分偶联，已经高产率地合成了许多官能化的二芳基甲胺。有机锌物质和醛都可以带有官能团，芳香族或非芳香族胺均可用于这种通用方法。

  DOI：

  10.1016/j.tet.2006.08.008

文献信息

• Copper(II)-Catalyzed [4+1] Annulation of Propargylamines with<i>N</i>,<i>O</i>-Acetals: Entry to the Synthesis of Polysubstituted Pyrrole Derivatives
  作者：Norio Sakai、Hiroaki Hori、Yohei Ogiwara

  DOI：10.1002/ejoc.201500098

  日期：2015.3

  Described herein is the CuCl2-catalyzed [4+1] annulation of a variety of propargylamines with N,O-acetals that function as a C1 unit, leading to the production of polysubstituted pyrrole derivatives. Three important features of the N,O-acetal during the [4+1] annulation series via 5-endo-dig cyclization are described: an enolizable substituent adjacent to the central sp3-carbon is required, the central

  本文描述的是 CuCl 2 催化的各种炔丙胺与作为 C1 单元的 N,O-缩醛的 [4+1] 环化，导致产生多取代的吡咯衍生物。描述了 N,O-缩醛在通过 5-endo-dig 环化的 [4+1] 环化系列中的三个重要特征：需要与中心 sp3-碳相邻的可烯醇化取代基，中心 sp3-碳显示功能亲电试剂和亲核试剂的分离，仲胺的释放平稳地导致芳构化。
• Atom-efficient transition-metal-free arylation of <i>N</i>,<i>O</i>-acetals using diarylzinc reagents through Zn/Zn cooperativity
  作者：Andryj M. Borys、Jose M. Gil-Negrete、Eva Hevia

  DOI：10.1039/d1cc04137a

  日期：——

  Exploiting the cooperative action of Lewis acid Zn(C6F5)2 with diarylzinc reagents, the efficient arylation of N,O-acetals to access diarylmethylamines is reported. Reactions take place under mild reaction conditions without the need for transtion-metal catalysis. Mechanistic investigations have revealed that Zn(C6F5)2 not only acts as a Lewis acid activator, but also enables the regeneration of nucleophilic

  利用路易斯酸 Zn(C 6 F 5 ) 2与二芳基锌试剂的协同作用，报道了N , O -缩醛的有效芳基化以获得二芳基甲胺。反应在温和的反应条件下进行，不需要过渡金属催化。机理研究表明，Zn(C 6 F 5 ) 2不仅可以作为路易斯酸活化剂，而且可以使亲核 ZnAr 2物质再生，允许使用限制为 50 mol%。
• Copper(I)-catalyzed coupling reaction of aryl boronic acids with N,O-acetals and N,N-aminals under atmosphere leading to α-aryl glycine derivatives and diarylmethylamine derivatives
  作者：Norio Sakai、Hiroaki Hori、Yoshihiro Yoshida、Takeo Konakahara、Yohei Ogiwara

  DOI：10.1016/j.tet.2015.05.068

  日期：2015.7

  We demonstrated a copper(I)-catalyzed coupling reaction of aryl boronic acids with N,O-acetals and N,N-aminals leading to the synthesis of alpha-aryl glycines and diarylmethylamines. Under an ambient atmosphere, this catalytic system could be applied to the activation of a C(sp(3))-O bond of N,O-acetals with an ester and an aryl group, or without a coordinating substituent, as well as to a C(sp(3))-N bond of N,N-aminals. (C) 2015 Elsevier Ltd. All rights reserved.