4-cyano-N,N-diethylbenzamide | 95725-03-4

• 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-cyano-N,N-diethylbenzamide
• 英文别名: N,N-diethyl-4-cyanobenzamide
• CAS: 95725-03-4
• 化学式: C₁₂H₁₄N₂O
• mdl: MFCD09949190
• 分子量: 202.256
• InChiKey: FGVTXCWBPWGPJW-UHFFFAOYSA-N

物化性质

• 熔点：
  79-80 °C
• 沸点：
  373.6±25.0 °C(Predicted)
• 密度：
  1.08±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-cyano-N,N-diethylbenzamide 在 Schwartz's reagent 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以90%的产率得到4-氰基苯甲醛
  参考文献：
  名称：

  A Novel and Expeditious Reduction of Tertiary Amides to Aldehydes Using Cp₂Zr(H)Cl

  摘要：

  Functional group manipulations continue to play an important role in organic synthesis, and hence the development of new methods to carry out these transformations remains an important part of organic chemistry. The reduction of amides to aldehydes is one such transformation, and although several methods are available,(1) many are substrate specific,(2) the outcome of the reaction being dependent upon the nature of the nitrogen substituent. Problems with existing techniques, which generally require the use of highly reactive reagents such as aluminum and boron hydrides, include low functional group tolerance, over-reduction to amines or alcohols, or the formation of other byproducts. Herein, we report a general procedure for the conversion of tertiary amides to:aldehydes, which employs a commercially available reagent, Cp2Zr(H)Cl (Schwartz reagent(3)) and operates under mild conditions at room temperature (Scheme 1).

  DOI：

  10.1021/ja002149g
• 作为产物：
  描述：

  N,N-二乙基苯甲酰胺-4-羧醛 在 sodium azide 、 三氟甲磺酸 作用下， 以 乙腈 为溶剂， 反应 0.03h， 以92%的产率得到4-cyano-N,N-diethylbenzamide
  参考文献：
  名称：

  三氟乙酸介导的化学选择性施密特反应：由醛选择性合成腈

  摘要：

  已证明醛的Schmidt反应在瞬时反应中能很好地利用相应的腈。醛与NaN 3和TfOH的反应以接近定量的产率提供了相应的腈，并且可以承受底物上的各种吸电子和供电子取代基。在施密特反应中常见的副产物甲虫胺未在该反应中观察到。除了这些优点之外，该反应的显着特征是它显示出显着的化学选择性，因为在反应条件下对酸和酮的官能度具有很好的耐受性。该反应易于扩展，高收率并且几乎是瞬时的。

  DOI：

  10.1021/jo3008258

文献信息

• A novel oxidative transformation of alcohols to nitriles: an efficient utility of azides as a nitrogen source
  作者：Balaji V. Rokade、Sanjeev K. Malekar、Kandikere Ramaiah Prabhu

  DOI：10.1039/c2cc31256e

  日期：——

  An efficient methodology to oxidize benzylic and cinnamyl alcohols to their corresponding nitriles in excellent yields has been developed. This methodology employs DDQ as an oxidant and TMSN3 as a source of nitrogen in the presence of a catalytic amount of Cu(ClO4)2·6H2O.

  已开发出一种高效的方法论，能够将苄醇和肉桂醇氧化为其相应的腈类化合物，并获得极佳的产率。该方法论采用DDQ作为氧化剂，TMSN3作为氮源，在微量Cu(ClO4)2·6H2O催化剂存在下进行反应。
• Pd/C-Catalyzed Aminocarbonylation of Aryl Iodides via Oxidative C–N Bond Activation of Tertiary Amines to Tertiary Amides
  作者：Rajendra S. Mane、Bhalchandra M. Bhanage

  DOI：10.1021/acs.joc.5b02385

  日期：2016.2.5

  This work reports oxidative N-dealkylation/carbonylation of tertiary amines to tertiary amides by using molecular oxygen as a sole oxidant using a Pd/C catalyst. This protocol is free from ligands, additives, bases, and cocatalysts. Different tertiary amines as well as aryl iodides have been examined for this transformation, providing desired products in good to excellent yield.

  这项工作报道了使用Pd / C催化剂将分子氧作为唯一的氧化剂，将叔胺氧化N-脱烷基/羰基化为叔酰胺。该方案不含配体，添加剂，碱和助催化剂。已经研究了不同的叔胺以及碘代芳基化合物的这种转化，从而以良好至优异的产率提供了所需的产物。
• Pd-Catalyzed Oxidative Aminocarbonylation of Arylboronic Acids with Unreactive Tertiary Amines via C–N Bond Activation
  作者：Yuvraj A. Kolekar、Bhalchandra M. Bhanage

  DOI：10.1021/acs.joc.1c00345

  日期：2021.10.15

  An efficient synthesis of tertiary amides from aryl boronic acids and inert tertiary amines through the oxidative carbonylation via C(sp3)–N bond activation is presented. This protocol significantly restricts the homocoupling biarylketone product. It involves the use of a homogeneous PdCl2/CuI catalyst and a heterogeneous Pd/C based catalyst, which promotes C(sp3)–N bond activation of tertiary amines

  提出了一种由芳基硼酸和惰性叔胺通过 C(sp 3 )-N 键活化的氧化羰基化有效合成叔酰胺的方法。该协议显着限制了同偶联二芳基酮产品。它涉及使用均相 PdCl 2 /CuI 催化剂和基于非均相 Pd/C 的催化剂，促进叔胺与芳基硼酸的C(sp 3 )-N 键活化。这个过程代表了一种无配体、无碱和可回收的催化剂，以及一种理想的氧化剂，如分子氧。
• Palladium-Catalyzed N-Acylation of Tertiary Amines by Carboxylic Acids: A Method for the Synthesis of Amides
  作者：Zhaohui Li、Long Liu、Kaiqiang Xu、Tianzeng Huang、Xinyi Li、Bin Song、Tieqiao Chen

  DOI：10.1021/acs.orglett.0c01869

  日期：2020.7.17

  A palladium-catalyzed N-acylation of tertiary amines by carboxylic acids was achieved through C–N cleavage. This reaction showed a wide substrate scope. Both aromatic and aliphatic acids served well as the acylating reagents and coupled with tertiary amines to produce the corresponding amides in good to excellent yields. With the strategy, bioactive carboxylic acids were also efficiently modified,

  通过C–N裂解，实现了羧酸对钯催化的叔胺的N-酰化反应。该反应显示出较宽的底物范围。芳族和脂族酸都很好地用作酰化剂，并与叔胺偶联以良好或优异的产率产生相应的酰胺。通过该策略，还可以有效地修饰生物活性羧酸，从而突出了该方法在有机合成中的合成价值。
• Aluminium complex as an efficient catalyst for the chemo-selective reduction of amides to amines
  作者：Suman Das、Himadri Karmakar、Jayeeta Bhattacharjee、Tarun K. Panda

  DOI：10.1039/c9dt01806a

  日期：——

  (HBpin) to afford the corresponding amines in high yields using aluminium complexes [κ2-Ph2P(X)NC9H6N}Al(Me)2] [X = S (2a), Se (2b)] as pre-catalysts at room temperature. The aluminium complexes were prepared from the reaction of [Ph2P(X)NC9H6N] [X = S (1a), Se (1b)] and trimethylaluminium in toluene. The solid-state structure of complex 2b is established. Tertiary amides with a wide array of electron-withdrawing

  我们报告的催化化学选择性还原的有效协议叔与频哪醇（HBpin） -酰胺，得到相应的胺以高产率使用铝配合物[κ 2 - 博士2 P（X）NC 9 H ^ 6 N}的Al （Me）2 ] [X = S（2a），Se（2b）]在室温下作为前催化剂。由[Ph 2 P（X）NC 9 H 6 N] [X = S（1a），Se（1b）]和三甲基铝在甲苯中的反应制备铝配合物。配合物2b的固态结构成立。具有广泛的吸电子和供电子功能基团的叔酰胺很容易通过氢化铝作为活性物质选择性裂解酰胺的C O键而转化为所需的产物。还报道了催化反应的动力学研究。