2-(4-甲基苯基)-1,3,4-恶二唑 | 827-58-7

• 物质功能分类: 医药中间体 - 杂环化合物
• 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-甲基苯基)-1,3,4-恶二唑
• 英文名称: 2-p-tolyl-1,3,4-oxadiazole
• 英文别名: 2-(4-methylphenyl)-1,3,4-oxadiazole；2-p-Tolyl-1,3,4-oxadiazol
• CAS: 827-58-7
• 化学式: C₉H₈N₂O
• mdl: MFCD00489537
• 分子量: 160.175
• InChiKey: ZSAGZTDFXXUAOE-UHFFFAOYSA-N

物化性质

• 熔点：
  86 °C
• 沸点：
  122 °C(Press: 3 Torr)
• 密度：
  1.142±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.111
• 拓扑面积：
  38.9
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2934999090

SDS

Material Safety Data Sheet

---

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

---

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

---

Section 3. Composition/information on ingredients.
Ingredient name: 2-(4-Methylphenyl)-1,3,4-oxadiazole
CAS number: 827-58-7

---

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.

---

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.

---

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.

---

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, refrigerated.
Storage:

---

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.

---

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: C9H8N2O
Molecular weight: 160.2

---

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.

---

Section 11. Toxicological information
No data.

---

Section 12. Ecological information
No data.

---

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.

---

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

---

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.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2-(4-甲基苯基)-1,3,4-恶二唑 在 N-溴代丁二酰亚胺(NBS) 、 potassium carbonate 、 potassium iodide 、 sodium t-butanolate 、 过氧化苯甲酰 作用下， 以 氯仿 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 48.0h， 生成 4-(1H-1,2,4-三唑-1-基甲基)苯甲腈
  参考文献：
  名称：

  A Base-Induced Ring-Opening Process of 2-Substituted-1,3,4-Oxadiazoles for the Generation of Nitriles at Room Temperature

  摘要：

  A novel base-catalysed 1,3,4-oxadiazole fragmentation for the synthesis of nitriles at room temperature has been developed. This reaction is performed under transition-metal-free conditions, and provides a new ring cleavage reaction of 1,3,4-oxadiazoles in organic synthesis.

  DOI：

  10.3184/174751914x14007780679741
• 作为产物：
  描述：

  对甲基苯甲酸 在 potassium carbonate 、 一水合肼 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 28.0h， 生成 2-(4-甲基苯基)-1,3,4-恶二唑
  参考文献：
  名称：

  Transition metal-free direct C–H bond thiolation of 1,3,4-oxadiazoles and related heteroarenes

  摘要：

  开发了一种便捷的无过渡金属催化方法，利用二芳基二硫醚直接对1,3,4-噁二唑C-H键进行硫醇化。该方法同样适用于吲哚、苯并噻唑、N-苯基苯并咪唑及咖啡因等多种底物，能以良好至优异的产率得到相应的硫醇化产物。

  DOI：

  10.1039/c2cc36711d

文献信息

• [EN] PYRAZOLE DERIVATIVES USEFUL AS INHIBITORS OF FAAH<br/>[FR] DÉRIVÉS DE PYRAZOLE UTILES COMME INHIBITEURS DE FAAH
  申请人：MERCK & CO INC

  公开号：WO2009151991A1

  公开（公告）日：2009-12-17

  The present invention is directed to certain imidazole derivatives which are useful as inhibitors of Fatty Acid Amide Hydrolase (FAAH). The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including osteoarthritis, rheumatoid arthritis, diabetic neuropathy, postherpetic neuralgia, skeletomuscular pain, and fibromyalgia, as well as acute pain, migraine, sleep disorder, Alzheimer disease, and Parkinson's disease

  本发明涉及某些咪唑衍生物，其可用作脂肪酰胺水解酶（FAAH）的抑制剂。该发明还涉及包含这些化合物作为活性成分的药物配方，以及这些化合物及其配方在治疗某些疾病中的使用，包括骨关节炎、类风湿性关节炎、糖尿病神经病变、带状疱疹后神经痛、骨骼肌肉疼痛和纤维肌痛，以及急性疼痛、偏头痛、睡眠障碍、阿尔茨海默病和帕金森病。
• Iodine-Mediated Domino Oxidative Cyclization: One-Pot Synthesis of 1,3,4-Oxadiazoles via Oxidative Cleavage of C(sp²)–H or C(sp)–H Bond
  作者：Yuxing Fan、Yongqin He、Xingxing Liu、Ting Hu、Haojie Ma、Xiaodong Yang、Xinliang Luo、Guosheng Huang

  DOI：10.1021/acs.joc.6b01135

  日期：2016.8.5

  An I2-promoted, metal-free domino protocol for one-pot synthesis of 1,3,4-oxadiazoles has been developed via oxidative cleavage of C(sp2)–H or C(sp)–H bonds, followed by cyclization and deacylation. In this reaction, the use of K2CO3 as a base is found to be an essential factor in the cyclization and the C–C bond cleavage. This procedure proceeded smoothly in moderate to high yields with good functional

  通过氧化裂解C（sp 2）–H或C（sp）–H键，然后环化，已开发出I 2促进的无金属多米诺协议，用于一锅合成1,3,4-恶二唑。和脱酰作用。在该反应中，发现使用K 2 CO 3作为碱是环化和C–C键断裂的必要因素。该过程以中等至高收率顺利进行，并具有良好的官能团相容性。
• 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。
• TiCl₄ mediated facile synthesis of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles
  作者：Lin Zhang、Yu Yu、Qiang Tang、Jianyong Yuan、Dongzhi Ran、Binghua Tian、Tao Pan、Zongjie Gan

  DOI：10.1080/00397911.2019.1700521

  日期：2020.2.1

  Abstract An efficient method for the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles and 1,3,4-thiadiazoles has been developed. Various hydrazides or thionyl hydrazides readily react with DMA derivatives in the presence of TiCl4 as a catalyst to afford the desired products. This protocol provides a simple and economical procedure that affords the target products with good yields and wide substrate

  摘要 开发了一种合成2,5-二取代1,3,4-恶二唑和1,3,4-噻二唑的有效方法。在作为催化剂的 TiCl4 存在下，各种酰肼或亚硫酰酰肼很容易与 DMA 衍生物反应，得到所需的产物。该协议提供了一种简单且经济的程序，可提供具有良好产量和广泛底物范围的目标产品。图形概要
• 以DMF为碳源一步构建2-对甲苯基-1,3,4-噁二唑的方法
  申请人：桂林理工大学

  公开号：CN109336838A

  公开（公告）日：2019-02-15

  本发明公开了一种以DMF（N,N‑二甲基甲酰胺）为碳源一步构建2‑对甲苯基‑1,3,4‑噁二唑的方法。该方法以对甲基苯甲酰肼作为反应原料，以DMF（N,N‑二甲基甲酰胺）作为碳源经碳环化反应，一步构建2‑对甲苯基‑1,3,4‑噁二唑。本发明方法合成手段新颖，反应条件温和，符合绿色化学的发展要求。