2-(4-硝基苯基)-1,3,4-噁二唑 | 4291-13-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-(4-硝基苯基)-1,3,4-噁二唑
• 中文别名: 1,3,4-恶二唑,2-(4-硝基苯基)-；2-(4-硝基苯基)-1,3,4-恶二唑
• 英文名称: 2-(4-nitrophenyl)-1,3,4-oxadiazole
• 英文别名: 2-<4-Nitro-phenyl>-1,3,4-oxadiazol
• CAS: 4291-13-8
• 化学式: C₈H₅N₃O₃
• mdl: MFCD00491617
• 分子量: 191.146
• InChiKey: FBQDNDLFVIKPRJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  84.7
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-(4-Nitrophenyl)-1,3,4-oxadiazole
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 2-(4-Nitrophenyl)-1,3,4-oxadiazole
CAS number: 4291-13-8

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels, under −20◦C.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C8H5N3O3
Molecular weight: 191.1

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2-(4-硝基苯基)-1,3,4-噁二唑 在 palladium on activated charcoal 吡啶 、 sodium hydroxide 、 氢气 作用下， 以 甲醇 为溶剂， 25.0~95.0 ℃ 、101.33 kPa 条件下， 反应 5.0h， 生成 4-磺胺酰胺基苯甲酸
  参考文献：
  名称：

  Vincent,M., Bulletin de la Societe Chimique de France, 1962, p. 1587 - 1591

  摘要：

  DOI：
• 作为产物：
  描述：

  对硝基苯甲酸甲酯 在 一水合肼 作用下， 以 乙醇 为溶剂， 反应 13.0h， 生成 2-(4-硝基苯基)-1,3,4-噁二唑
  参考文献：
  名称：

  Synthesis of 2-aryl-5-(arylsulfonyl)-1,3,4-oxadiazoles as potent antibacterial andantioxidant agents

  摘要：

  制备了十种新型2-芳基-5-(芳基磺酰基)-1,3,4-恶二唑，并评估了它们的体外抗菌和抗氧化活性。采用多种光谱方法（li1H NMR、13C NMR、IR和LCMS）对制备的样品进行了表征，所有数据与预期的结构一致。对制备的化合物6a-j进行了体外抗菌活性筛选，以对抗铜绿假单胞菌、产气肠杆菌、大肠杆菌（革兰氏阳性）和蜡样芽孢杆菌、金黄色葡萄球菌、枯草芽孢杆菌（革兰氏阴性）等菌株。抗菌筛选结果表明，在所研究的化合物中，制备的2-(3,4-二甲基苯基)-5-对甲苯磺酰基-1,3,4-恶二唑（6j）、2-(3-异丙基苯基)-5-对甲苯磺酰基-1,3,4-恶二唑（6c）和2-(2-乙基苯基)-5-对甲苯磺酰基-1,3,4-恶二唑（6i）的抗菌活性最强。此外，还采用DPPH自由基清除法研究了制备的化合物的抗氧化活性，结果表明，其中一些化合物具有中等活性。

  DOI：

  10.55730/1300-0527.3366

文献信息

• Direct Annulation of Hydrazides to 1,3,4-Oxadiazoles via Oxidative C(CO)–C(Methyl) Bond Cleavage of Methyl Ketones
  作者：Qinghe Gao、Shan Liu、Xia Wu、Jingjing Zhang、Anxin Wu

  DOI：10.1021/acs.orglett.5b01241

  日期：2015.6.19

  strategy for the synthesis of 1,3,4-oxadiazoles was established through direct annulation of hydrazides with methyl ketones. It was found that the use of K2CO3 as a base achieves an unexpected and highly efficient C–C bond cleavage. This reaction is proposed to go through oxidative cleavage of Csp3–H bonds, followed by cyclization and deacylation.

  通过将酰肼与甲基酮直接环合，建立了一种合成1,3,4-恶二唑的新策略。发现使用K 2 CO 3作为碱可以实现意想不到且高效的C–C键裂解。建议该反应通过C sp 3 -H键的氧化裂解，然后环化和脱酰基。
• DMF as Methine Source: Copper‐Catalyzed Direct Annulation of Hydrazides to 1,3,4‐Oxadiazoles
  作者：Shoucai Wang、Kai Wang、Xiangfei Kong、Shuhua Zhang、Guangbin Jiang、Fanghua Ji

  DOI：10.1002/adsc.201900395

  日期：2019.9.3

  unprecedented Cu‐catalyzed direct annulation of hydrazides with N,N‐dimethylformamide (DMF) was developed, providing an efficient synthesis of valuable 1,3,4‐oxadiazoles. This process features the short reaction time and can be safely conducted on gram scale. The reaction also facilitated the convenient synthesis of 1,3,4‐oxadiazole‐2(3H)‐ones. Moreover, the mechanistic studies suggest that the source of CH is

  开发了前所未有的Cu催化的N，N-二甲基甲酰胺（DMF）酰肼直接环化反应，可有效合成有价值的1,3,4-恶二唑。该过程的反应时间短，可以安全地以克为单位进行。该反应还促进了1,3,4-恶二唑-2（3 H）-one的便捷合成。此外，机理研究表明，CH的来源是DMF的N-甲基。
• Electrophilic activation of nitroalkanes in efficient synthesis of 1,3,4-oxadiazoles
  作者：Alexander V. Aksenov、Vladislav Khamraev、Nicolai A. Aksenov、Nikita K. Kirilov、Dmitriy A. Domenyuk、Vladimir A. Zelensky、Michael Rubin

  DOI：10.1039/c9ra00976k

  日期：——

  A novel methodology for general and chemoselective preparation of non-symmetric 1,3,4-oxadiazoles is developed. This unusual reaction proceeds via polyphosphoric acid-assisted activation of nitroalkanes towards nucleophilic attack with acylhydrazides.

  开发了一种用于非对称 1,3,4-恶二唑的通用和化学选择性制备的新方法。这种不寻常的反应是通过多磷酸辅助的硝基烷烃活化向酰基肼的亲核攻击而进行的。
• Synthesis of 1,3,4-oxadiazolium and 1,3,4-oxadiazolo[3,2-a]pyridinium salts
  作者：G. V. Boyd、S. R. Dando

  DOI：10.1039/j39700001397

  日期：——

  is described. Numerous 3-aryl-1,3,4-oxadiazolium salts, containing a novel type of heterocyclic cation, have been prepared by the action of carboxylic anhydrides on diacylarylhydrazines in the presence of perchloric or fluoroboric acid. 1,3,4-Oxadiazolo[3,2-a]pyridinium salts are similarly formed from 1 -acylamino-2-pyridones. The stability of the salts and their i.r. and n.m.r. spectra are discussed

  已经研究了一些简单的1,3,4-恶二唑的质子化和烷基化，并描述了一种新的1,3,4-恶二唑的合成。在高氯酸或氟硼酸的存在下，通过羧酸酐对二酰基芳基肼的作用，已经制备了许多含有新型杂环阳离子的3-芳基-1,3,4-恶二唑鎓盐。类似地由1-酰基氨基-2-吡啶酮形成1,3,4-氧杂二唑[3,2- a ]吡啶鎓盐。讨论了盐的稳定性及其ir和nmr光谱。
• ¹⁷ O NMR studies of substituted 1,3,4-oxadiazoles
  作者：Błażej Gierczyk、Maciej Zalas、Marcin Kaźmierczak、Jakub Grajewski、Radosław Pankiewicz、Bożena Wyrzykiewicz

  DOI：10.1002/mrc.2804

  日期：2011.10

  Three series of substituted 1,3,4-oxadiazoles were studied by (17)O NMR spectroscopy. Chemical shifts values were correlated with empirical Hammett parameters as well as calculated bond lengths and chemical shielding values.

  通过（17）O NMR光谱研究了三个系列的取代的1,3,4-恶二唑。化学位移值与经验的哈米特参数以及计算的键长和化学屏蔽值相关。