N,N-dibenzylisopropylamine | 55578-14-8

• 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: N,N-dibenzylisopropylamine
• 英文别名: Benzenemethanamine, N-(1-methylethyl)-N-(phenylmethyl)-；N,N-dibenzylpropan-2-amine
• CAS: 55578-14-8
• 化学式: C₁₇H₂₁N
• 分子量: 239.36
• InChiKey: HLJOCCQVHGRQPB-UHFFFAOYSA-N

物化性质

• 沸点：
  317.4±11.0 °C(Predicted)
• 密度：
  0.996±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  3.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N,N-dibenzylisopropylamine 在 1,4-二氧六环 作用下， 反应 8.0h， 以28%的产率得到N-异丙基苯甲酰胺
  参考文献：
  名称：

  异吲哚啉酮的合成：异吲哚啉的选择性二恶烷介导的好氧氧化

  摘要：

  N-烷基和N-芳基-异吲哚啉酮是通过二恶烷介导的异吲哚啉前体的氧化反应制备的。该转化表现出对异茚满碱独特的化学选择性。在氧化过程中手性叔（3°）-苄基位置未消旋，通过后期氧化制备了甲基吲哚洛芬。机理研究表明，选择性的H原子转移可避免许多已知的异吲哚啉酮氧化（副）产物。

  DOI：

  10.1021/acs.joc.8b01920
• 作为产物：
  描述：

  苯甲酰溴 在 氢氧化钾 、 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 45.0h， 生成 N,N-dibenzylisopropylamine
  参考文献：
  名称：

  Stereodynamics of 2-(Diethylamino)propane and 2-(Dibenzylamino)propane. 1H and 13C{1H} DNMR Studies. Molecular Mechanics Calculations

  摘要：

  2-(Diethylamino)propane (DEAP) and 2-(dibenzylamino)propane (DBAP) possess similar molecular symmetries. Interconversion among the stable equilibrium conformations occurs by inversion-rotation at the pyramidal nitrogen and by isolated rotation about-carbon-nitrogen bonds. In DEAF and DBAP, the fact that stable equilibrium conformations cannot have destabilizing syn-1,5 interactions between methyl or phenyl groups limits the number of equilibrium conformations that will be present at concentrations high enough to be NMR detectable. The H-1 and C-13{H-1} NMR spectra of DEAF at 100 K show two diastereomeric pairs of enantiomeric conformations. One pair of enantiomers has the isopropyl methine proton and both ethyl methyl groups gauche to the lone pair (75%). The other pair has the methine proton anti to the lone pair with the ethyl methyl groups respectively gauche and anti to the lone pair (25%). The barrier to inversion-rotation in DEAF (Delta G(double dagger) = 6.4 kcal/mol) is higher than barriers to isolated rotation about carbon-nitrogen bonds (Delta G(double dagger) = 5.3-5.7 kcal/mol). The H-1 and C-13{H-1} NMR spectra of DBAP at 100 K show just one pair of enantiomeric conformations that have the isopropyl methine proton and both phenyl groups gauche to the lone pair. There is no evidence in the NMR spectrum at 100 K for those conformations of DBAP that have a phenyl group anti to the lone pair. The barrier to inversion-rotation in DBAP (Delta G(double dagger) = 6.4 kcal/mol) is higher than the barrier to racemization via isolated rotation about carbon-nitrogen bonds (Delta G(double dagger) = 5.5 kcal/mol). Molecular mechanics calculations of conformational energies are in good agreement with the observed conformational preferences.

  DOI：

  10.1021/ja00155a021

文献信息

• Synthetic and theoretical investigation on the one-pot halogenation of β-amino alcohols and nucleophilic ring opening of aziridinium ions
  作者：Yunwei Chen、Xiang Sun、Ningjie Wu、Jingbai Li、Shengnan Jin、Yongliang Zhong、Zirui Liu、Andrey Rogachev、Hyun-Soon Chong

  DOI：10.1039/c5ob01692d

  日期：——

  Aziridinium ions are useful reactive intermediates for the synthesis of enantiomerically enriched building blocks. However, N,N-dialkyl aziridinium ions are relatively underutilized in the synthesis of optically active molecules as compared to other three-membered ring cogeners, aziridines and epoxides. The characterization of both optically active aziridinium ions and secondary β-halo amines as the

  iri啶鎓离子是用于合成对映体富集的结构单元的有用的反应性中间体。然而，与其他三元环同源热氮，氮丙啶和环氧化物相比，N，N-二烷基叠氮鎓离子在光学活性分子的合成中相对未被充分利用。几乎没有报道光学活性的叠氮鎓离子和仲β-卤代胺作为叠氮鎓离子的前体分子的表征，并且常常不清楚。在本文中，我们首次报道了旋光性叠氮鎓离子和仲β-卤代胺的制备以及实验和理论表征。旋光性次生N，NN，N-取代的丙氨醇通过卤化物在氮丙啶鎓离子的更受阻的碳上形成和开环而有效地合成了N-取代的β-卤代胺。通过NMR和计算分析对旋光性β-卤代胺和叠氮鎓离子进行了表征。通过X射线晶体学分析确认旋光性β-氯胺的结构。来自N，N的叠氮鎓离子-二苄基丙二醇仅在数小时内保持稳定，这对于分析NMR和光学活性而言足够长。使用DFT和高精度DLPNO-CCSD（T）方法，通过计算研究了卤化物对氮丙啶鎓离子的立体定向开环。氮丙啶鎓离子的高度区域
• Copper-Catalyzed Electrophilic Amination of Diorganozinc Reagents
  作者：Ashley M. Berman、Jeffrey S. Johnson

  DOI：10.1021/ja049474e

  日期：2004.5.1

  The copper-catalyzed electrophilic amination of diorganozinc reagents employing O-acyl N,N-dialkyl hydroxylamine derivatives as aminating agents is described. This reaction offers a general method for the preparation of tertiary amines in high yields and is noteworthy for its convenience both in terms of reaction conditions employed (room temperature,

  描述了使用 O-酰基 N,N-二烷基羟胺衍生物作为胺化剂的二有机锌试剂的铜催化亲电胺化。该反应提供了一种以高产率制备叔胺的通用方法，并且在所采用的反应条件（室温、
• N-alkylation of amines by homogeneous ruthenium complexes in the presence of free diphosphines
  作者：Bahareh Tamaddoni Jahromi、Ali Nemati Kharat

  DOI：10.1080/00958972.2013.844340

  日期：2013.10.10

  Chemoselective N-alkylation of amines by ruthenium complexes in the presence of free diphosphine ligands under mild conditions is described. Octyl amine and aniline were chosen as aliphatic and aromatic amines to investigate the effect of different phosphines, reaction times, and temperature on conversion, as well as selectivity towards related secondary and tertiary amines. After optimization of the reaction

  描述了在温和条件下在游离二膦配体存在下通过钌配合物对胺进行化学选择性 N-烷基化。选择辛胺和苯胺作为脂肪族和芳香族胺，以研究不同膦、反应时间和温度对转化率的影响，以及对相关仲胺和叔胺的选择性。在优化反应条件后，该催化体系用于其他胺的 N-烷基化，并显示出中等至非常好的产率。通过GC-MS监测反应产物。[Ru(NO3)2CO(PPh3)2] 具有单齿和双齿硝酸盐的晶体结构通过 X 射线晶体学分析确定。
• The synthesis of sterically hindered amines by a direct reductive amination of ketones
  作者：Niyaz Z. Yagafarov、Pavel N. Kolesnikov、Dmitry L. Usanov、Valentin V. Novikov、Yulia V. Nelyubina、Denis Chusov

  DOI：10.1039/c5cc08577b

  日期：——

  An atom-economical methodology for the synthesis of sterically hindered tertiary amines was developed, which is based on complementary Rh- and Ru-catalyzed direct reductive amination of ketones with primary and secondary...

  开发了一种原子经济的方法，用于合成位阻叔胺，该方法基于互补的Rh和Ru催化的酮与伯和仲的直接还原胺化反应。
• Copper-Catalyzed Electrophilic Amination of Organozinc Nucleophiles:  Documentation of <i>O</i>-Benzoyl Hydroxylamines as Broadly Useful R₂N(+) and RHN(+) Synthons
  作者：Ashley M. Berman、Jeffrey S. Johnson

  DOI：10.1021/jo051999h

  日期：2006.1.1

  isolated analytically pure after a simple extractive workup. The amination process is shown to tolerate a significant degree of steric demand. The amination of nominally unreactive Caryl−H bonds via a sequential directed ortho metalation/transmetalation/catalytic amination reaction sequence is detailed. The direct Cu-catalyzed amination of Grignard reagents using cocatalysis by ZnCl2 is described.

  本文详细介绍了新的铜催化的二有机锌试剂的亲电胺化反应，该反应使用O-苯甲酰羟胺作为亲电氮源，可以一步一步获得。在催化量的铜盐存在下，将简单且功能化的芳基，杂芳基，苄基，正烷基，仲烷基和叔烷基亲核试剂与R 2 NOC（O）Ph和RHNOC（O）Ph试剂偶联叔胺和仲胺通常分别具有良好的收率。在许多情况下，可通过简单的萃取后处理将产物分离为分析纯。胺化过程显示出可以承受很大程度的空间需求。名义上不活泼的C芳基的胺化详细说明了通过顺序的定向原位金属化/过渡金属化/催化胺化反应序列进行的-H键。描述了使用ZnCl 2共催化直接Cu催化的格氏试剂的胺化。