2,4-diphenyl-6-(p-tolyl)pyrimidine | 71103-76-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2,4-diphenyl-6-(p-tolyl)pyrimidine
• 英文别名: 4-(4-Methylphenyl)-2,6-diphenylpyrimidine
• CAS: 71103-76-9
• 化学式: C₂₃H₁₈N₂
• 分子量: 322.409
• InChiKey: FHDVOTRYVUVFBV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.04
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-N-(2-chlorophenyl)-1-(4-isopropylphenyl)methanimine 、 2,4-diphenyl-6-(p-tolyl)pyrimidine 在 lithium hydride 、 potassium hydroxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以73%的产率得到(E)-2,6-diphenyl-4-[4-(4-isopropylstyryl)phenyl]pyrimidine
  参考文献：
  名称：

  Anil Synthesis in the Design of Push−Pull Systems. Synthesis of 2- and 4-(4-Styrylphenyl)-substituted Diphenylpyrimidines

  摘要：

  The potential of anil synthesis for the preparation of 2,4,6-triaryl-substituted pyrimidines with an extended chain of delocalized pi-bonds was studied. The reaction of (E)-3-phenyl-1-(p-tolyl)prop-2-en-1-one or chalcone with benzamidine, 4-methylbenzamidine, or 4-isobutoxybenzamidine hydrochlorides in ethanol in the presence of KOH gave 2,4-diphenyl-6-(p-tolyl)pyrimidine, 4,6-diphenyl-2-(p-tolyl)pyrimidine, and 2-(4-isobutoxyphenyl)-4-phenyl-6-(p-tolyl)pyrimidine. The synthesized pyrimidines were reacted with (E)-N-(phenyl- or 2-chlorophenyl)-1-arylmethanimines in DMF in the presence of a KOH/LiH mixture to obtain (E)-4,6-diphenyl-2-(4-styrylphenyl)pyrimidines and (E)-2,6-diphenyl-4-(4-styrylphenyl)pyrimidines were obtained.

  DOI：

  10.1134/s1070428020020153
• 作为产物：
  描述：

  2-[(E)-[(E)-3-(4-methylphenyl)-1-phenylprop-2-enylidene]amino]oxyacetic acid 以7%的产率得到
  参考文献：
  名称：

  FORRESTER A. R.; GILL M.; THOMSON R. H., J. CHEM. SOC. PERKIN TRANS., PART 1, 1979, NO 3, 616-620

  摘要：

  DOI：

文献信息

• Cyclization of Ketones with Nitriles under Base: A General and Economical Synthesis of Pyrimidines
  作者：Lebin Su、Kang Sun、Neng Pan、Long Liu、Mengli Sun、Jianyu Dong、Yongbo Zhou、Shuang-Feng Yin

  DOI：10.1021/acs.orglett.8b01324

  日期：2018.6.1

  realized under basic conditions via the copper-catalyzed cyclization of ketones with nitriles. The reaction proceeds via a novel pathway involving the nitriles acting as electrophiles and consecutive C–C bond and two C–N bond formations and shows broad substrate scope and good tolerance of many important functional groups. This strategy represents a new platform for constructing pyrimidine structures.

  在碱性条件下，通过铜催化的酮与腈的环化反应，已经实现了功能多样的嘧啶的简便，通用且经济的合成。该反应通过一种新颖的途径进行，该途径涉及腈类作为亲电子试剂，并具有连续的C–C键和两个C–N键形成，并显示出较宽的底物范围和对许多重要官能团的良好耐受性。该策略代表了构建嘧啶结构的新平台。
• Mechanistic insight into the azo radical-promoted dehydrogenation of heteroarene towards N-heterocycles
  作者：Amreen K. Bains、Debashis Adhikari

  DOI：10.1039/d0cy01008a

  日期：——

  reactions to synthesize wide variety of N-heterocycles. In these processes, the dehydrogenation of saturated heteroarenes in the late stage is generally required to furnish the desired N-heterocycle. However, in a one-pot, multistep heterocycle synthesis, this step is not well elucidated, and the role of the catalyst is not thoroughly understood. Furthermore, the use of copious amount of base at elevated

  借用氢化促进的环空反应被认为是合成各种N-杂环的重要反应。在这些方法中，通常需要在后期进行饱和杂芳烃的脱氢以提供所需的N-杂环。然而，在一锅多步杂环合成中，该步骤没有得到很好的阐明，并且催化剂的作用还没有被完全理解。此外，在升高的温度下使用大量的碱进一步使该问题复杂化，并且使人们怀疑催化剂参与杂芳烃脱氢。本文中，我们报道了一种分子定义的镍催化剂，该催化剂可以在温和的条件下（80°C，8 h）进行两次环化反应，以实现三嗪和嘧啶的可持续合成。机械上，我们清楚地描述了催化剂在促进杂芳烃脱氢中的重要作用。饱和杂环与金属催化剂的键合要经过预平衡步骤（在80°C下K = 238），然后进行关键的氢原子转移。包括Van't Hoff，Eyring分析和嘧啶基自由基的拦截在内的一系列动力学实验揭示了脱氢过程的细节。这种由配体驱动的贱金属催化方法与经过充分评估的金属-配体协同键活化策略显着不同，后者可提供替代的脱氢途径，所需能量更少。
• [EN] BISIMIDAZOLODIAZOCINES<br/>[FR] BIS-IMIDAZOLO-DIAZOCINES
  申请人：IDEMITSU KOSAN CO

  公开号：WO2016125110A1

  公开（公告）日：2016-08-11

  The present invention relates to an organic electronic device, preferably an OLED, comprising a Bisimidazolodiazocine of formula (I) charge transport layer, a charge/exciton blocker layer, or an emitting layer comprising the Bisimidazolodiazocine; an apparatus selected from the group consisting of stationary visual display units; mobile visual display units; illumination units; keyboards; items of clothing; furniture; wallpaper, comprising the inventive organic electronic device, or the inventive charge transport layer, the charge/exciton blocker layer, or the emitting layer; the use of the Bisimidazolodiazocines for electrophotographic photoreceptors, photoelectric converters, organic solar cells, switching elements, organic light emitting field effect transistors, image sensors, dye lasers and electroluminescent devices; a process for the production of the Bisimidazolodiazocines and specific Bisimidazolodiazocines..

  本发明涉及一种有机电子器件，优选为OLED，包括式(I)的双咪唑二唑啉的电荷传输层，电荷/激子阻挡层，或包括双咪唑二唑啉的发射层；选自固定视觉显示单元组、移动视觉显示单元、照明单元、键盘、服装、家具、墙纸的装置，包括所述创新的有机电子器件，或创新的电荷传输层、电荷/激子阻挡层或发射层；双咪唑二唑啉用于电子照相感光鼓、光电转换器、有机太阳能电池、开关元件、有机发光场效应晶体管、图像传感器、染料激光器和电致发光器件的用途；一种生产双咪唑二唑啉和特定双咪唑二唑啉的方法。
• Transition-metal-free selective pyrimidines and pyridines formation from aromatic ketones, aldehydes and ammonium salts
  作者：Jinjin Chen、Huanxin Meng、Feng Zhang、Fuhong Xiao、Guo-Jun Deng

  DOI：10.1039/c9gc02077b

  日期：——

  An efficient synthesis of pyrimidines and pyridines has been developed from readily available aromatic ketones, aldehydes and ammonium salts under transition-metal-free conditions. In this strategy, ammonium salts were used as nitrogen sources and only water was generated as a nontoxic byproduct. A catalytic amount of NaIO4 played an important role in the selectivity control, whereas substituted pyridines

  在无过渡金属的条件下，由容易获得的芳族酮，醛和铵盐已开发出嘧啶和吡啶的有效合成方法。在该策略中，铵盐用作氮源，仅水作为无毒副产物产生。催化量的NaIO 4在选择性控制中起重要作用，而在不存在吡啶的情况下主要形成取代的吡啶。
• Base-Mediated Three-Component Tandem Reactions for the Synthesis of Multisubstituted Pyrimidines
  作者：Dongqing Liu、Wei Guo、Wanqing Wu、Huanfeng Jiang

  DOI：10.1021/acs.joc.7b02113

  日期：2017.12.15

  A base-mediated three-component tandem reaction for the synthesis of multisubstituted pyrimidines from amidines, aryl alkynes, and aldehydes in a one-pot manner has been developed. Advantages of this transformation include being transition-metal-free, high efficiency, available starting materials, and being environmentally friendly.

  已经开发了一种碱介导的三组分串联反应，该反应可通过一锅法从am，芳基炔烃和醛合成多取代的嘧啶。这种转变的优势包括无过渡金属，高效，可用的原材料以及环境友好。