4-methyl-N-diphenylmethylaniline | 76056-06-9

• 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: 4-methyl-N-diphenylmethylaniline
• 英文别名: N-benzhydryl-4-methylaniline；N-benzhydryl-p-toluidine；N-Benzhydryl-p-toluidin；α-p-Toluidino-diphenylmethan；p-Tolyl-benzhydrylamin
• CAS: 76056-06-9
• 化学式: C₂₀H₁₉N
• 分子量: 273.378
• InChiKey: IIUQQOMGPXVHHU-UHFFFAOYSA-N

物化性质

• 沸点：
  403.3±14.0 °C(Predicted)
• 密度：
  1.094±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  12
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  4-methyl-N-diphenylmethylaniline 在 potassium hydride 作用下， 以 乙腈 为溶剂， 反应 0.33h， 生成
  参考文献：
  名称：

  Hydride, Hydrogen, Proton, and Electron Affinities of Imines and Their Reaction Intermediates in Acetonitrile and Construction of Thermodynamic Characteristic Graphs (TCGs) of Imines as a “Molecule ID Card”

  摘要：

  A series of 61 imines with various typical structures were synthesized, and the thermodynamic affinities (defined as enthalpy changes or redox potentials in this work) of the imines to abstract hydride anions, hydrogen atoms, and electrons, the thermodynamic affinities of the radical anions of the imines to abstract hydrogen atoms and protons, and the thermodynamic affinities of the hydrogen adducts of the imines to abstract electrons in acetonitrile were determined by using titration calorimetry and electrochemical methods. The pure heterolytic and homolytic dissociation energies of the C = N pi-bond in the imines were estimated. The polarity of the C = N double bond in the imines was examined using a linear free-energy relationship. The idea of a thermodynamic characteristic graph (TCG) of imines as an efficient "Molecule ID Card" was introduced. The TCG can be used to quantitatively diagnose and predict the characteristic chemical properties of imines and their various reaction intermediates as well as the reduction mechanism of the imines. The information disclosed in this work could not only supply a gap of thermodynamics for the chemistry of imines but also strongly promote the fast development of the applications of imines.

  DOI：

  10.1021/jo902332n
• 作为产物：
  描述：

  4-(benzhydrylamino)benzonitrile 在 iron(III) chloride hexahydrate 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 24.0h， 生成 4-methyl-N-diphenylmethylaniline
  参考文献：
  名称：

  铁催化的C ？C键断裂和C ？N键形成

  摘要：

  铁催化的CC键裂解产生了一种形成CN键的新方法。苯胺和磺酰胺与2-取代的1,3-二苯基丙烷-1,3-二酮平稳反应，得到N-烷基化产物，其中1,3-二羰基在铁催化剂存在下充当离去基团。可逆的CC键断裂起着驱动力的作用，从而提供了热力学稳定的产物。该方法是对以前形成CN键的方法的补充。

  DOI：

  10.1002/adsc.201200324

文献信息

• Selective catalytic Hofmann N-alkylation of poor nucleophilic amines and amides with catalytic amounts of alkyl halides
  作者：Qing Xu、Huamei Xie、Er-Lei Zhang、Xiantao Ma、Jianhui Chen、Xiao-Chun Yu、Huan Li

  DOI：10.1039/c6gc00938g

  日期：——

  A selective Hofmann N-alkylation reaction of amines/amides catalytic in alkyl halides is achieved by using alcohols as the alkylating reagents, affording mono- or di-alkylated amines/amides in high selectivities.

  通过使用醇作为烷基化试剂，实现烷基卤化物中催化的胺/酰胺的霍夫曼N-烷基的选择性霍夫曼N-烷基化反应，从而以高选择性提供单或二烷基化的胺/酰胺。
• Boron-Catalyzed <i>N</i>-Alkylation of Arylamines and Arylamides with Benzylic Alcohols
  作者：Murali Mohan Guru、Pradip Ramdas Thorve、Biplab Maji

  DOI：10.1021/acs.joc.9b02816

  日期：2020.1.17

  A sustainable boron-based catalytic approach for chemoselective N-alkylation of primary and secondary aromatic amines and amides with primary, secondary, and tertiary benzylic alcohols has been presented. The metal-free protocol operates at low catalyst loading, tolerates several functional groups, and generates H2O as the sole byproduct. Preliminary mechanistic studies were performed to demonstrate

  提出了一种可持续的基于硼的催化方法，用于伯，仲和叔苄醇对伯和仲芳族胺和酰胺的化学选择性N-烷基化。不含金属的方案在低催化剂负载下运行，可耐受多个官能团，并生成H2O作为唯一的副产物。进行了初步的机理研究，以证明硼催化剂在中间体二苄基醚的活化中的关键作用，并确定了决定速率的步骤。
• Borane-Catalyzed Chemoselectivity-Controllable N-Alkylation and <i>ortho</i> C-Alkylation of Unprotected Arylamines Using Benzylic Alcohols
  作者：Shan-Shui Meng、Xiaowen Tang、Xiang Luo、Ruibo Wu、Jun-Ling Zhao、Albert S. C. Chan

  DOI：10.1021/acscatal.9b03038

  日期：2019.9.6

  efficient and highly chemoselective alkylation of unprotected arylamines using alcohols catalyzed by B(C6F5)3 has been developed. The reaction gives N-alkylated products and ortho C-alkylated products in different solvents in good chemoselectivities and yields. Control experiments and DFT calculations indicated that the borane underwent alcohol/arylamine exchange to ensure catalytic activity, and a

  已经开发出一种空前的方案，用于使用受B（C 6 F 5）3催化的醇对未保护的芳基胺进行高效且高度化学选择性的烷基化反应。该反应在不同溶剂中以良好的化学选择性和收率得到N-烷基化产物和邻C-烷基化产物。控制实验和DFT计算表明，硼烷进行了醇/芳基胺交换以确保催化活性，并提出了涉及碳正离子化的可能机理。
• Silver-Catalyzed N–H Functionalization of Aryl/Aryl Diazoalkanes with Anilines
  作者：Feifei He、Claire Empel、Rene M. Koenigs

  DOI：10.1021/acs.orglett.1c02289

  日期：2021.9.3

  Herein, we report on the N–H functionalization reaction of primary and secondary anilines with diaryldiazoalkanes using simple AgPF6 as catalyst. We demonstrated broad applicability in the reaction of diaryldiazoalkanes with different anilines (31 examples, up to 97% yield). Furthermore, we propose a possible reaction mechanism for the N–H functionalization.

  在此，我们报告了使用简单的 AgPF 6作为催化剂的伯和仲苯胺与二芳基重氮烷烃的 N-H 官能化反应。我们证明了二芳基重氮烷烃与不同苯胺反应的广泛适用性（31 个例子，产率高达 97%）。此外，我们提出了 N-H 官能化的可能反应机制。
• General Synthesis of <i>N</i>-Alkylation of Amines with Secondary Alcohols via Hydrogen Autotransfer
  作者：Murugan Subaramanian、Siba P. Midya、Palmurukan M. Ramar、Ekambaram Balaraman

  DOI：10.1021/acs.orglett.9b02990

  日期：2019.11.15

  Direct catalytic N-alkylation of amines with secondary alcohols via hydrogen autotransfer (HA) strategy is very challenging and has been scarcely reported, even under precious metal catalysis. Herein, an efficient N-alkylation of amines, including benzylamines using secondary alcohols as alkylating agents, is reported. This reaction is catalyzed by a molecularly defined NNN-Ni(II) pincer complex, and

  通过氢自动转移（HA）策略将胺与仲醇直接催化N-烷基化非常具有挑战性，甚至在贵金属催化下也很少报道。本文中，报道了使用仲醇作为烷基化剂的胺（包括苄胺）的有效N-烷基化。该反应由分子定义的NNN-Ni（II）钳配合物催化，该反应在温和，良性的条件下进行。可以耐受各种底物和官能团。初步的机理研究表明，N-烷基化反应是通过氢自动转移机理进行的。