3-(2-chlorophenyl)-5-phenyl-1,2,4-oxadiazole | 261704-60-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-(2-chlorophenyl)-5-phenyl-1,2,4-oxadiazole
• CAS: 261704-60-3
• 化学式: C₁₄H₉ClN₂O
• 分子量: 256.691
• InChiKey: GHUDOGFVKXOEKK-UHFFFAOYSA-N

物化性质

• 熔点：
  84-86 °C
• 沸点：
  410.9±47.0 °C(Predicted)
• 密度：
  1.275±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：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  38.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  正丁基锂 、 3-(2-chlorophenyl)-5-phenyl-1,2,4-oxadiazole 以 四氢呋喃 、 正己烷 为溶剂， 以53.3%的产率得到5-butyl-3-(2-chlorophenyl)-5-phenyl-4,5-dihydro-1,2,4-oxadiazole
  参考文献：
  名称：

  5-Butyl-3,5-diaryl-4,5-dihydro-1,2,4-oxadiazoles, and a One-Step Synthesis of 4,4-Dibutyl-2-phenylbenzo-1,3-oxazine

  摘要：

  DOI：

  10.3987/com-99-8722
• 作为产物：
  描述：

  2-chloro-N-hydroxybenzimidoyl chloride 在 乙醇 、 氨 作用下， 生成 3-(2-chlorophenyl)-5-phenyl-1,2,4-oxadiazole
  参考文献：
  名称：

  Werner; Bloch, Chemische Berichte, 1899, vol. 32, p. 1981

  摘要：

  DOI：

文献信息

• The first one-pot ambient-temperature synthesis of 1,2,4-oxadiazoles from amidoximes and carboxylic acid esters
  作者：Sergey Baykov、Tatyana Sharonova、Anton Shetnev、Sergey Rozhkov、Stanislav Kalinin、Alexey V. Smirnov

  DOI：10.1016/j.tet.2017.01.007

  日期：2017.2

  The first one-pot room-temperature protocol for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles via the condensation between amidoximes and carboxylic acid esters in superbase medium MOH/DMSO is reported. A broad spectrum of alkyl, aryl and hetaryl amidoximes and esters was examined. This reaction route provides convenient access to 1,2,4-oxadiazoles, which is highly desirable because in the light

  据报道，第一个单锅室温规程是通过在超碱性介质MOH / DMSO中通过a肟和羧酸酯之间的缩合反应合成3,5-二取代-1,2,4-恶二唑。检查了烷基，芳基和杂芳基肟和酯的广谱光谱。该反应途径提供了方便地获得1,2,4-恶二唑的途径，这是非常需要的，因为鉴于这种特权支架，公认其是新型治疗剂和高科技材料设计的重要核心。
• A facile approach to synthesize 3,5-disubstituted-1,2,4-oxadiazoles via copper-catalyzed-cascade annulation of amidines and methylarenes
  作者：Wei Guo、Kunbo Huang、Fanghua Ji、Wanqing Wu、Huanfeng Jiang

  DOI：10.1039/c5cc02110c

  日期：——

  Various 3,5-disubstituted-1,2,4-oxadiazoles are smoothly formed via copper-catalyzed cascade annulation of amidines and methylarenes. This tandem oxidation-amination-cyclization transformation represents a straightforward protocol to prepare 1,2,4-oxadiazoles from easily available starting materials, with...

  各种3,5-二取代-1,2,4-恶二唑是通过铜催化的am和甲基芳烃的级联环化反应顺利形成的。这种串联的氧化-胺化-环化反应代表了一种简单的方法，可以从容易获得的起始原料中制备1,2,4-恶二唑，并采用...
• A novel synthesis of 1,2,4-oxadiazoles and isoxazoles
  作者：Arif Kivrak、Metin Zora

  DOI：10.1016/j.tet.2013.12.043

  日期：2014.1

  A novel synthesis of 1,2,4-oxadiazoles and isoxazoles is described by utilizing the reactions between amidoximes and α,β-alkynic aldehydes and/or ketones. Conjugate addition products, obtained from amidoximes and α,β-alkynic aldehydes and/or ketones, afford 1,2,4-oxadiazoles and isoxazoles when treated with bases and acids, respectively. 1,2,4-Oxadiazoles can also be synthesized directly from amidoximes

  通过利用a肟和α，β-炔醛和/或酮之间的反应，描述了1,2,4-恶二唑和异恶唑的新型合成方法。从a胺肟和α，β-炔醛和/或酮获得的共轭加成产物在分别用碱和酸处理时分别得到1,2,4-恶二唑和异恶唑。1,2,4-氧杂二唑也可以在碱性条件下一锅法直接由a胺肟和α，β-炔醛合成。该反应对于各种起始化合物是通用的，并且可以耐受芳基，杂芳基和烷基的存在。
• Copper‐Catalyzed Three‐Component Cascade Reaction of Benzaldehyde with Benzylamine and Hydroxylamine or Aniline: Synthesis of 1,2,4‐Oxadiazoles and Quinazolines
  作者：Chao Wang、Xiyan Rui、Dongjuan Si、Rupeng Dai、Yueyue Zhu、Hongmei Wen、Wei Li、Jian Liu

  DOI：10.1002/adsc.202001535

  日期：2021.6.8

  The analogous three-component synthesis strategy for substituted 1,2,4-oxadiazole and quinazoline derivatives from readily available benzaldehyde, benzylamine and hydroxylamine or aniline has been developed. Both the cascade reaction sequences involves nucleophilic addition of C−N bond, introduction a halogen donor, nucleophilic substitution and Cu(II)-catalyzed aerobic oxidation. This synthesis methodology

  已经开发了从容易获得的苯甲醛、苄胺和羟胺或苯胺中取代 1,2,4-恶二唑和喹唑啉衍生物的类似三组分合成策略。两个级联反应序列都涉及 CN 键的亲核加成、引入卤素供体、亲核取代和 Cu(II) 催化的有氧氧化。这种合成方法表现出良好的收率、广泛的底物范围和作为绿色氧化剂的氧气。因此，该合成方案为从容易和简单的起始材料构建取代的 1,2,4-恶二唑和喹唑啉提供了策略。
• Oxidative cyclization of amidoximes and thiohydroximic acids: A facile and efficient strategy for accessing 3,5-disubstituted 1,2,4-oxadiazoles and 1,4,2-oxathiazoles
  作者：Jatin J. Lade、Bhausaheb N. Patil、Kamlesh S. Vadagaonkar、Atul C. Chaskar

  DOI：10.1016/j.tetlet.2017.04.045

  日期：2017.5

  A facile and practical protocol has been developed for the synthesis of 3,5-disubstituted 1,2,4-oxadiazoles and 1,4,2-oxathiazoles through oxidative cyclization of amidoximes and thiohydroximic acids, respectively at room temperature. Use of mild reaction conditions, inexpensive reagents, broad substrate scope and good to excellent yield of the products are the salient features of this protocol.

  已经开发了一种简便实用的方案，分别通过室温下mid胺肟和硫代氢肟酸的氧化环化反应来合成3,5-二取代的1,2,4-恶二唑和1,4,2-恶二唑。使用温和的反应条件，廉价的试剂，广泛的底物范围以及良好至优异的产物收率是该方案的主要特征。