5-(3-nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole | 412960-35-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 5-(3-nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole
• CAS: 412960-35-1
• 化学式: C₁₅H₁₃N₃O₂
• 分子量: 267.287
• InChiKey: SBOLHAHQOAMFDO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  70.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  5-(3-nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole 在 sodium persulfate 作用下， 反应 1.08h， 生成 5-(3-nitrophenyl)-3-phenyl-1H-pyrazole
  参考文献：
  名称：

  One-Pot Synthesis of 3,5-Diphenyl-1H-pyrazoles from Chalcones and Hydrazine under Mechanochemical Ball Milling

  摘要：

  A highly efficient and environmentally friendly method has been developed for facile synthesis of 3,5-diphenyl-1H-pyrazoles under mechanochemical ball-milling conditions. The advantages of short reaction time, high efficiency, no separation of in situ generated intermediate, using cheap sodium persulfate as the oxidant, together with very simple work-up procedure, make this one-pot and solvent-free protocol a green and powerful alternative to traditional methods for the synthesis of these kinds of compounds.

  DOI：

  10.3987/com-13-12867
• 作为产物：
  描述：

  3-硝基查耳酮 在 一水合肼 作用下， 反应 0.83h， 生成 5-(3-nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazole
  参考文献：
  名称：

  One-Pot Synthesis of 3,5-Diphenyl-1H-pyrazoles from Chalcones and Hydrazine under Mechanochemical Ball Milling

  摘要：

  A highly efficient and environmentally friendly method has been developed for facile synthesis of 3,5-diphenyl-1H-pyrazoles under mechanochemical ball-milling conditions. The advantages of short reaction time, high efficiency, no separation of in situ generated intermediate, using cheap sodium persulfate as the oxidant, together with very simple work-up procedure, make this one-pot and solvent-free protocol a green and powerful alternative to traditional methods for the synthesis of these kinds of compounds.

  DOI：

  10.3987/com-13-12867

文献信息

• Development of 5-(Aryl)-3-phenyl-1H-pyrazole Derivatives as Potent Antimicrobial Compounds
  作者：B. Nagendra Chowdary、M. Umashankara、B. Dinesh、K. Girish、A. Ramesha Baba

  DOI：10.14233/ajchem.2019.21455

  日期：——

  A series of 16 chalcone compounds were synthesized by Claisen-Schmidt condensation of various aldehydes with acetophenone using KOH as a base in ethanol. The reaction affords the desired products in good yields. Then all the 16 compounds were converted into pyrazoles by treating with hydrazine hydrate in ethanol under reflux condition. Both chalcones and pyrazoles were screened for their in vitro antibacterial (Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa) and antifungal (Aspergillus flavus, Chrysosporium keratinophilum and Candida albicans) activity. Biological activities of these compounds were compared with those of commercially available antibiotic ampicillin and antifungal agent miconazole. Pyrazoles were found to be most active and effective than corresponding chalcones for antimicrobial activity. Out of the 7 pyrazole compounds tested for antibacterial and antifungal activity, 5 compounds, 4h, 4j, 4l, 4m and 4n are turned out to be potent antimicrobial agents. Therefore these derivatives could serve as a highly promising molecules for further development.

  通过克莱森-施密特冷凝反应，合成了一系列16种查尔酮化合物，使用不同的醛与乙酰苯酮在氢氧化钾的碱性条件下于乙醇中发生反应。反应获得期望产物，产率良好。随后，所有16种化合物通过在回流条件下用水合肼处理转化为吡唑。对查尔酮和吡唑进行了体外抗菌（大肠杆菌、金黄色葡萄球菌和铜绿假单胞菌）和抗真菌（青霉菌、角质毛霉和白色念珠菌）活性筛选。这些化合物的生物活性与市售抗生素氨苄青霉素和抗真菌剂米康唑进行了比较。研究发现，吡唑在抗微生物活性方面比对应的查尔酮更为活跃和有效。在测试的7种吡唑化合物中，4h、4j、4l、4m和4n五种化合物表现出很强的抗微生物活性。因此，这些衍生物有望成为进一步开发的极具潜力的分子。