1-(3,5-dimethylphenyl)-3-phenylurea | 4300-44-1

• 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: 1-(3,5-dimethylphenyl)-3-phenylurea
• 英文别名: N-(3,5-dimethylphenyl)-N'-phenyl-urea；N-(3,5-dimethylphenyl)-N'-phenylurea
• CAS: 4300-44-1
• 化学式: C₁₅H₁₆N₂O
• mdl: MFCD02026282
• 分子量: 240.305
• InChiKey: NUMLMHFHMHBFTE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  3,5-二甲基苯硼酸 在 三甲基铝 、 copper(l) chloride 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 5.17h， 生成 1-(3,5-dimethylphenyl)-3-phenylurea
  参考文献：
  名称：

  铜催化Chan-Lam偶联剂在室温下合成N-芳基氨基甲酸酯的方法

  摘要：

  N-芳基氨基甲酸酯的温和有效合成是通过在10 mol％氯化铜催化剂存在下使叠氮基甲酸酯与硼酸反应实现的。该反应在室温下在开放烧瓶中容易进行，无需额外的碱，配体或添加剂。通过使N-芳基氨基甲酸酯与铝-胺络合物反应，可以通过两步一锅法快速获得尿素类似物。另外，在制备的几种硼酸衍生物中，发现二甲基苯基硼酸酯在其与叠氮基甲酸苄酯的反应中快速反应，从而在催化循环中原位生成该物种。

  DOI：

  10.1021/jo502828r

文献信息

• Palladium-Catalyzed Cross-Coupling of Aryl Chlorides and Triflates with Sodium Cyanate: A Practical Synthesis of Unsymmetrical Ureas
  作者：Ekaterina V. Vinogradova、Brett P. Fors、Stephen L. Buchwald

  DOI：10.1021/ja305212v

  日期：2012.7.11

  chlorides and triflates with sodium cyanate is reported. The protocol allows for the synthesis of unsymmetrical N,N'-di- and N,N,N'-trisubstituted ureas in one pot and is tolerant of a wide range of functional groups. Insight into the mechanism of aryl isocyanate formation was gleaned through studies of the transmetalation and reductive elimination steps of the reaction, including the first demonstration

  报道了一种钯催化芳基氯和三氟甲磺酸酯与氰酸钠交叉偶联的有效方法。该协议允许在一锅中合成不对称的 N,N'-di-和 N,N,N'-三取代脲，并且可以容忍多种功能组。通过对反应的金属转移和还原消除步骤的研究，包括从芳基钯异氰酸酯络合物中还原消除生成异氰酸芳基酯的首次演示，深入了解了芳基异氰酸酯的形成机制。
• A Metal‐Free Synthesis of N‐Aryl Carbamates under Ambient Conditions
  作者：Wusheng Guo、Joan Gónzalez‐Fabra、Nuno A. G. Bandeira、Carles Bo、Arjan W. Kleij

  DOI：10.1002/anie.201504956

  日期：2015.9.28

  site‐selective process for the formation of N‐aryl‐carbamates from cyclic organic carbonates and aromatic amines is reported. The reactions proceed smoothly under extremely mild reaction conditions using TBD (triazabicyclodecene) as an effective and cheap organocatalyst, thus providing a sustainable and new methodology for the formation of a wide variety of useful N‐aryl carbamate synthons in good to excellent yields

  据报道，由环状有机碳酸酯和芳香胺形成N-芳基氨基甲酸酯的第一个化学和位点选择性过程。使用TBD（三氮杂双环癸烯）作为有效且廉价的有机催化剂，可在极其温和的反应条件下顺利进行反应，从而为形成各种有用的N-芳基氨基甲酸酯合成子提供了可持续且新颖的方法，收率良好。已经进行了计算研究，并显示了观察到的独特反应性的根本原因，该反应性与双环胍碱基介导的有效质子继发机制有关。
• Toward Optimization of the Linker Substructure Common to Transthyretin Amyloidogenesis Inhibitors Using Biochemical and Structural Studies
  作者：Steven M. Johnson、Stephen Connelly、Ian A. Wilson、Jeffery W. Kelly

  DOI：10.1021/jm800435s

  日期：2008.10.23

  To develop potent and highly selective transthyretin (TTR) amyloidogenesis inhibitors, it is useful to systematically optimize the three substructural elements that compose a typical TTR kinetic stabilizer: the two aryl rings and the linker joining them. Herein, we evaluated 40 bisaryl molecules based on 10 unique linker substructures to determine how these linkages influence inhibitor potency and selectivity. These linkers connect one unsubstituted aromatic ring to either a 3,5-X 2 or a 3,5-X 2-4-OH phenyl substructure (X = Br or CH 3). Coconsideration of amyloid inhibition and ex vivo plasma TTR binding selectivity data reveal that direct connection of the two aryls or linkage through nonpolar E-olefin or -CH 2CH 2- substructures generates the most potent and selective TTR amyloidogenesis inhibitors exhibiting minimal undesirable binding to the thyroid hormone nuclear receptor or the COX-1 enzyme. Five high-resolution TTR.inhibitor crystal structures (1.4-1.8 A) provide insight into why such linkers afford inhibitors with greater potency and selectivity.
• A Synthetic Approach to <i>N</i>-Aryl Carbamates via Copper-Catalyzed Chan–Lam Coupling at Room Temperature
  作者：Soo-Yeon Moon、U. Bin Kim、Dan-Bi Sung、Won-Suk Kim

  DOI：10.1021/jo502828r

  日期：2015.2.6

  catalyst. The reaction proceeds readily in an open flask at room temperature without additional base, ligand, or additive. Rapid access to urea analogues via a two-step one-pot procedure is enabled by reacting N-arylcarbamates with aluminum–amine complexes. In addition, among several boronic acid derivatives prepared, dimethylphenyl boronate was found to react rapidly in its reaction with benzyl azidoformate

  N-芳基氨基甲酸酯的温和有效合成是通过在10 mol％氯化铜催化剂存在下使叠氮基甲酸酯与硼酸反应实现的。该反应在室温下在开放烧瓶中容易进行，无需额外的碱，配体或添加剂。通过使N-芳基氨基甲酸酯与铝-胺络合物反应，可以通过两步一锅法快速获得尿素类似物。另外，在制备的几种硼酸衍生物中，发现二甲基苯基硼酸酯在其与叠氮基甲酸苄酯的反应中快速反应，从而在催化循环中原位生成该物种。