α,4-dimethylbenzylidenemethylamine | 53370-98-2

• 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: α,4-dimethylbenzylidenemethylamine
• 英文别名: 1-(4-methylphenyl)ethanone oxime；N-methyl-[1-(4'-methylphenyl)ethylidene]amine；1-(4-methylphenyl)-N-methylethan-1-imine；N-[1-(4-methylphenyl)ethylidene]methanamine；N-methyl-1-(4-methylphenyl)ethanimine
• CAS: 53370-98-2
• 化学式: C₁₀H₁₃N
• 分子量: 147.22
• InChiKey: IKCPNMJFHKEJBY-UHFFFAOYSA-N

物化性质

• 沸点：
  199.7±23.0 °C(Predicted)
• 密度：
  0.88±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  12.4
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  α,4-dimethylbenzylidenemethylamine 在 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 48.0h， 生成 1,3-dimethyl-1-phenyl-3-(1-p-tolylvinyl)urea
  参考文献：
  名称：

  Geometry-Selective Synthesis of E or Z N-Vinyl Ureas (N-Carbamoyl Enamines)

  摘要：

  N-Vinyl ureas are emerging as a valuable class of compounds with both nucleophilic and electrophilic reactivity. They may be made by capturing the enamine tautomer of an imine with an isocyanate, a reaction which in general leads to the E isomer of the vinyl urea. Deprotonation of such a vinyl urea, or of an allyl urea, generates a dipole stabilized Z-allyl anion which may be protonated to return the Z-vinyl urea. Isomerization of an allyl urea with a Ru complex provides an alternative route to E-vinyl ureas.

  DOI：

  10.1021/ol1027442
• 作为产物：
  描述：

  N-chloro-N-methyl-1-(p-tolyl)ethan-1-amine 在 sodium methylate 作用下， 以 甲醇 为溶剂， 生成 α,4-dimethylbenzylidenemethylamine
  参考文献：
  名称：

  Reactions of N-halo-N-methylbenzylamines with sodium methoxide-methanol and potassium tert-butoxide-tert-butyl alcohol. Effects of .beta.-carbon substituent and base-solvent system upon the imine-forming transition state

  摘要：

  DOI：

  10.1021/ja00188a046

文献信息

• Disulfonimide‐Catalyzed Asymmetric Reduction of <i>N</i> ‐Alkyl Imines
  作者：Vijay N. Wakchaure、Philip S. J. Kaib、Markus Leutzsch、Benjamin List

  DOI：10.1002/anie.201504052

  日期：2015.9.28

  A chiral disulfonimide (DSI)‐catalyzed asymmetric reduction of N‐alkyl imines with Hantzsch esters as a hydrogen source in the presence of Boc2O has been developed. The reaction delivers Boc‐protected N‐alkyl amines with excellent yields and enantioselectivity. The method tolerates a large variety of alkyl amines, thus illustrating potential for a general reductive cross‐coupling of ketones with diverse

  在Boc 2 O存在的情况下，已开发出一种以Hantzsch酯为氢源的手性二磺酰亚胺（DSI）催化N烷基亚胺的不对称还原。该反应可提供具有出色收率和对映选择性的Boc保护的N-烷基胺。该方法可耐受多种烷基胺，从而说明了酮与各种胺的一般还原性交叉偶联的潜力，并已用于药物（S）-利伐斯的明，NPS R-568盐酸盐的合成，以及（R）-芬迪林。
• Iron catalysed nitrosation of olefins to oximes
  作者：Ritwika Ray、Abhishek Dutta Chowdhury、Debabrata Maiti、Goutam Kumar Lahiri

  DOI：10.1039/c3dt51764k

  日期：——

  Fe(BF4)2·6H2O/2,6-pyridinedicarboxylic acid catalysed nitrosation of a wide variety of substituted styrenes has been developed in the presence of t-BuONO/NaBH4 under H2 pressure (10 bar) in MeOH–H2O (5 : 1) to afford corresponding oximes in good to excellent yields.

  在Fe(BF4)2·6H2O/2,6-吡啶二羧酸的催化下，通过在H2压力（10巴）、t-BuONO/NaBH4存在下，以MeOH-H2O（5:1）为溶剂，广泛研究了各种取代苯乙烯的亚硝化反应，得到了相应的肟类化合物，产率良好至优异。
• Tandem β-Alkylation−α-Arylation of Amines by Carbolithiation and Rearrangement of <i>N</i>-Carbamoyl Enamines (Vinyl Ureas)
  作者：Jonathan Clayden、Morgan Donnard、Julien Lefranc、Alberto Minassi、Daniel J. Tetlow

  DOI：10.1021/ja1007992

  日期：2010.5.19

  an umpolung fashion to the beta-carbon of N-carbamoyl enamines (N-vinyl ureas). The reaction proceeds with syn diastereospecificity and provides urea-stabilized, configurationally defined organolithiums. Facilitated by coordinating solvents (THF or DMPU), these undergo intramolecular attack on an N'-aryl group, resulting in retentive arylation of the organolithium and hence overall addition of an alkyl

  有机锂以 umpolung 方式添加到 N-氨基甲酰基烯胺（N-乙烯基脲）的 β-碳上。该反应以顺式非对映特异性进行，并提供尿素稳定的、构型确定的有机锂。在配位溶剂（THF 或 DMPU）的促进下，它们对 N'-芳基进行分子内攻击，导致有机锂的保留性芳基化，从而将烷基或芳基整体添加到脲取代烯烃的两个碳原子上。在热丁醇中轻松脱保护允许快速、多组分构建重取代胺。
• Cooperative Lewis Acid/Cp*Co ^III Catalyzed C−H Bond Activation for the Synthesis of Isoquinolin‐3‐ones
  作者：Ju Hyun Kim、Steffen Greßies、Frank Glorius

  DOI：10.1002/anie.201601003

  日期：2016.4.25

  A facile route toward the synthesis of isoquinolin‐3‐ones through a cooperative B(C6F5)3‐ and Cp*CoIII‐catalyzed C−H bond activation of imines with diazo compounds is presented. The inclusion of a catalytic amount of B(C6F5)3 results in a highly efficient reaction, thus enabling unstable NH imines to serve as substrates.

  提出了一种通过协同的B（C 6 F 5）3-和Cp * Co III催化的重氮化合物亚胺的CH键活化合成异喹啉-3-酮的简便方法。包含催化量的B（C 6 F 5）3导致高效反应，从而使不稳定的NH亚胺成为底物。
• Photocatalytic Difunctionalization of Vinyl Ureas by Radical Addition Polar Truce–Smiles Rearrangement Cascades
  作者：Roman Abrams、Jonathan Clayden

  DOI：10.1002/anie.202003632

  日期：2020.7.6

  We report tandem alkyl‐arylations and phosphonyl‐arylations of vinyl ureas by way of a photocatalytic radical‐polar crossover mechanism. Addition of photoredox‐generated radicals to the alkene forms a new C−C or C−P bond and generates a product radical adjacent to the urea function. Reductive termination of the photocatalytic cycle generates an anion that undergoes a polar Truce–Smiles rearrangement

  我们通过光催化自由基-极性交叉机理报告了乙烯基脲的串联烷基芳基化和膦酰基芳基化。光氧化还原产生的自由基加到烯烃上会形成一个新的C C或C P键，并产生一个与脲官能团相邻的产物自由基。光催化循环的还原性终止产生一个阴离子，该阴离子经历一个极性的Truce-Smiles重排，形成一个CC键。该反应以一系列的α-氟化烷基亚磺酸钠盐和二芳基膦氧化物为自由基前体而成功，并且构象加速的Truce-Smiles重排不受迁移的芳香环电子性质的限制。形式上，该反应构成了碳-碳双键的α，β-泛函化，并在可见光和易于获得的有机光催化剂的温和条件下进行。产物是通常用F或P取代基官能化的α，α-二芳基烷基脲，可以很容易地转化为α，α-二芳基烷基胺。