2-甲基-4,5-二苯唑 | 14224-99-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2-甲基-4,5-二苯唑
• 中文别名: 2-甲基-4,5-二苯基恶唑
• 英文名称: 2-methyl-4,5-diphenyloxazole
• 英文别名: 4,5-diphenyl-2-methyloxazole；2-methyl-4,5-diphenyl-1,3-oxazole
• CAS: 14224-99-8
• 化学式: C₁₆H₁₃NO
• mdl: MFCD00005307
• 分子量: 235.285
• InChiKey: QLQIWRCWPJRJJA-UHFFFAOYSA-N

物化性质

• 熔点：
  28 °C(lit.)
• 沸点：
  214 °C17 mm Hg(lit.)
• 密度：
  1.116 g/mL at 25 °C(lit.)
• 闪点：
  >230 °F

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.062
• 拓扑面积：
  26
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• WGK Germany：
  3
• 海关编码：
  2934999090
• 储存条件：
  室温和干燥环境

SDS

2-Methyl-4,5-diphenyloxazole Revision number: 5
SAFETY DATA SHEET

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Section 1. IDENTIFICATION
Product name: 2-Methyl-4,5-diphenyloxazole

Revision number: 5

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Section 2. HAZARDS IDENTIFICATION
GHS classification
PHYSICAL HAZARDS Not classified
Not classified
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS Not classified
GHS label elements, including precautionary statements
Pictograms or hazard symbols None
No signal word
Signal word
Hazard statements None
None
Precautionary statements:

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture: Substance
Components: 2-Methyl-4,5-diphenyloxazole
Percent: ....
CAS Number: 14224-99-8
Chemical Formula: C16H13NO

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Section 4. FIRST AID MEASURES
Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
Skin contact: Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact: Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Ingestion: Get medical advice/attention if you feel unwell. Rinse mouth.
A rescuer should wear personal protective equipment, such as rubber gloves and air-
Protection of first-aiders:
tight goggles.

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Section 5. FIRE-FIGHTING MEASURES
Suitable extinguishing Dry chemical, foam, water spray, carbon dioxide.
media:
Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to
from the chemical: generate poisonous fume.
2-Methyl-4,5-diphenyloxazole

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Section 5. FIRE-FIGHTING MEASURES
Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protective When extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

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Section 6. ACCIDENTAL RELEASE MEASURES
Use personal protective equipment. Keep people away from and upwind of spill/leak.
Personal precautions,
protective equipment and Ensure adequate ventilation. Entry to non-involved personnel should be controlled
emergency procedures: around the leakage area by roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Absorb spilled material in a suitable absorbent (e.g. rag, dry sand, earth, saw-dust).
containment and cleaning In case of large amount of spillage, contain a spill by bunding. Adhered or collected
up: material should be promptly disposed of, in accordance with appropriate laws and
regulations.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Technical measures: Handling is performed in a well ventilated place. Wear suitable protective equipment.
Prevent generation of vapour or mist. Wash hands and face thoroughly after
handling.
Use a ventilation, local exhaust if vapour or aerosol will be generated.
Advice on safe handling: Avoid contact with skin, eyes and clothing.
Conditions for safe storage, including any
incompatibilities
Storage conditions: Keep container tightly closed. Store in a cool and dark place.
Store away from incompatible materials such as oxidizing agents.
Packaging material: Comply with laws.

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Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Install a closed system or local exhaust as possible so that workers should not be
Engineering controls:
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Vapor respirator. Follow local and national regulations.
Hand protection: Protective gloves.
Eye protection: Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state (20°C): Liquid
Form: Clear
Pale yellow - Yellow
Colour:
Odour: No data available
pH: No data available
Melting point/freezing point:No data available
212°C/2.4kPa
Boiling point/range:
Flash point: No data available
Flammability or explosive
limits:
No data available
Lower:
Upper: No data available
1.14
Relative density:
Solubility(ies):
No data available
[Water]
[Other solvents] No data available
2-Methyl-4,5-diphenyloxazole

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Section 10. STABILITY AND REACTIVITY
Chemical stability: Stable under proper conditions.
Possibility of hazardous No special reactivity has been reported.
reactions:
Incompatible materials: Oxidizing agents
Hazardous decomposition Carbon monoxide, Carbon dioxide, Nitrogen oxides (NOx)
products:

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Section 11. TOXICOLOGICAL INFORMATION
Acute Toxicity: No data available
Skin corrosion/irritation: No data available
Serious eye No data available
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
IARC = No data available
No data available
NTP =
Reproductive toxicity: No data available

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Section 12. ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: No data available
Crustacea: No data available
Algae: No data available
Persistence / degradability: No data available
Bioaccumulative No data available
potential(BCF):
Mobility in soil
No data available
Log Pow:
Soil adsorption (Koc): No data available
Henry's Law No data available
constant(PaM3/mol):

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Section 13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. Observe all federal, state and local
regulations when disposing of the substance.

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Section 14. TRANSPORT INFORMATION
Hazards Class: Does not correspond to the classification standard of the United Nations
Not listed
UN-No:

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Section 15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002
and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport,
loading and unloading were prescribed.
2-Methyl-4,5-diphenyloxazole

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2-甲基-4,5-二苯唑 在 盐酸 、 Sensitox (Rose Bengal polymer) 、 氧气 、 对甲苯磺酸 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 29.17h， 生成 N-苯甲酰基-苯甲酰胺
  参考文献：
  名称：

  恶唑的光氧化作用活化了羧酸盐。应用于累西非内酯和其他大环内酯的合成。

  摘要：

  恶唑体系可以用作羧基官能团的保护基。羧酸盐是在温和的光氧化条件下以反应性三酰胺的形式高收率地生成的。该反应已应用于大环内酯的合成。

  DOI：

  10.1016/s0040-4039(01)90426-5
• 作为产物：
  描述：

  乙醯苯偶姻 在 乙酸铵 作用下， 以 溶剂黄146 为溶剂， 反应 2.0h， 生成 2-甲基-4,5-二苯唑
  参考文献：
  名称：

  苯环化

  摘要：

  处理几种取代的苯甲[3,3'-和4,4'-二甲基-; 2,2'-，3,3'-和4,4'-二氯-; 3,3'-二溴-; 用过量的氯磺酸4-（N，N-二甲基氨基）-]得到相应的3-氯-2-苯基苯并呋喃二磺酰基二氯化物。通过微观分析和光谱数据证实了相应的双（N，N-二甲基氨基磺酰胺）的取代。用3，3′-二甲基-，2，2′-和3，3′-二氯苯甲酰未确认亲电取代的位置。使用4,4'-dichlorobenzil，可以使用较少量的氯磺酸来分离3,6,4'-三氯-2-苯基苯并呋喃-5-磺酰氯，并通过X射线分析N，N进行鉴定-二甲基磺酰胺。环化失败的原因是3,3'-二甲氧基-，3,3'-和4,4'-二硝基苯。结果已经机械地解释了。

  DOI：

  10.1002/jhet.5570240124

文献信息

• Catalytic transformation of esters of 1,2-azido alcohols into α-amido ketones
  作者：Yongjin Kim、Han Kyu Pak、Young Ho Rhee、Jaiwook Park

  DOI：10.1039/c6cc02063a

  日期：——

  The esters of 1,2-azido alcohols were transformed into [small alpha]-amido ketones without external oxidants through the Ru-catalyzed formation of N-H imines with liberation of N2 followed by intramolecular migration of the...

  1,2-叠氮基醇的酯通过Ru催化形成的NH亚胺与N 2的释放而随后在分子内的迁移而转化为无外部氧化剂的小α-酰胺基酮。
• Abnormal Diels–Alder Reaction of Oxazoles with 4-Phenyl-3<i>H</i>-1,2,4-triazole-3,5(4<i>H</i>)-dione and Diethyl Azodicarboxylate, and X-Ray Crystal Structure of an Adduct
  作者：Toshikazu Ibata、Hiroyuki Suga、Yasushi Isogami、Hatsue Tamura、Xiaolan Shi

  DOI：10.1246/bcsj.65.2998

  日期：1992.11

  The reaction of substituted oxazoles with 4-phenyl-3H-1,2,4-triazole-3,5(4H)-dione (PTAD) or diethyl azodicarboxylate gave the corresponding 1,2,4-triazoline derivatives through formal [3+2] cycloaddition accompanying ring opening of oxazoles. The molecular structure of an adduct of 5-methoxy-4-methyl-2-(p-tolyl)oxazole with PTAD was determined by means of X-ray crystallography.

  取代的恶唑与 4-苯基-3H-1,2,4-三唑-3,5(4H)-二酮 (PTAD) 或偶氮二甲酸二乙酯反应通过 [3+ 2]伴随恶唑开环的环加成。5-甲氧基-4-甲基-2-（对甲苯基）恶唑与 PTAD 的加合物的分子结构通过 X 射线晶体学确定。
• Lewis acid-mediated defluorinative [3+2] cycloaddition/aromatization cascade of 2,2-difluoroethanol systems with nitriles
  作者：Min-Tsang Hsieh、Kuo-Hsiung Lee、Sheng-Chu Kuo、Hui-Chang Lin

  DOI：10.1002/adsc.201701581

  日期：2018.4.17

  and chemical stability, make derivatization of organic fluorine‐containing compounds by the activation of the C−F bond and subsequent functionalization quite challenging. We herein report a Lewis acid‐mediated defluorinative cycloaddition/aromatization cascade of 2,2‐difluoroethanols with nitriles as a novel synthetic method for the preparation of 2,4,5‐trisubstituted oxazoles. This reaction, which

  C-F键的特性（包括高的热稳定性和化学稳定性）使C-F键的活化和随后的功能化变得非常困难，从而使有机含氟化合物衍生化。我们在本文中报道了一种2,9,5-二氟乙醇与腈的路易斯酸介导的脱氟环加成/芳构化级联反应，作为制备2,4,5-三取代的恶唑的一种新型合成方法。该反应涉及两个碳原子键的断裂以及单键连续形成碳原子键和碳原子键的反应，具有广泛的底物范围和中等至高的反应产率。机理研究表明，该反应是由路易斯酸介导的2,2-二氟乙醇的闭环反应产生的，是氟代环氧中间体。
• Iron-Catalyzed Cycloaddition of Amides and 2,3-Diaryl-2<i>H</i>-azirines To Access Oxazoles via C–N Bond Cleavage
  作者：Mi-Na Zhao、Gui-Wan Ning、De-Suo Yang、Ming-Jin Fan、Sheng Zhang、Peng Gao、Li-Fang Zhao

  DOI：10.1021/acs.joc.0c02843

  日期：2021.2.5

  A novel and efficient iron-catalyzed cycloaddition reaction using readily available 2,3-diaryl-2H-azirines and primary amides is reported. A wide range of trisubstituted oxazoles could be achieved in good yields with good functional group compatibility. In this transformation, two C–N bonds were cleaed and new C–N and C–O bonds were formed.

  使用容易获得的2,3-二芳基-2-一种新颖和有效的铁-催化的环加成反应ħ -azirines和伯酰胺进行报告。可以以良好的收率和良好的官能团相容性获得各种三取代的恶唑。在此转变中，两个C–N键被切割，并形成了新的C–N和C–O键。
• [EN] ANTI-BIOFILM COMPOUNDS<br/>[FR] COMPOSÉS ANTI-BIOFILM
  申请人：UNIV LOUISVILLE RES FOUND

  公开号：WO2013016206A1

  公开（公告）日：2013-01-31

  The present invention provides non-peptide compounds of formula (I) wherein: X is -(C1-C8)allcyl-, aryl or -aryl(C1-C8)alkyl-; Y is -(C1-C8)alkyl- or absent; W is heteroaryl, (C3-C7)carbocycle or aryl, wherein any heteroaryl, (C3-C7)carbocycle or, aryl of W is optionally substituted with one or more (e.g. 1, 2, 3, 4 or 5) Z1 groups; R1 is (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)alkynyl or aryl, wherein aryl is optionally substituted with one or more (e.g. 1, 2, 3, 4 or 5) groups selected from (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)alkynyl, (C3-C7)carbocycle, halo(C1-C3)alkyl, -CN, NO2, halogen, -ORa, -SRa, -S(O)2NRbRc, -NRbRc, -NRaCORd, -C(O)Ra, -C(O)ORa, and -C(O)NRbRc; R2 is (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)Jalkynyl or aryl, wherein aryl is optionally substituted with one or more (e.g. 1, 2, 3, 4 or 5) groups selected from (C1-C8)alkyl, (C2-C8)alkenyl, (C2-C8)alkynyl, (C3-C7)carbocycle, halo(C1-C3)alkyl, -CN, NO2, halogen, -ORe, -SRe, -S(O)2NRfRg, -NRfRg -NReCORh, -C(O)Re, -C(O)ORe and -C(O)NRfRg; I that mimic the streptococcal; SspB Adherence Region (BAR) and function as inhibitors of P. gingivalis adherence to streptococci. The invention also provides methods of making and using the inhibitors.

  本发明提供了式(I)的非肽化合物，其中：X为-(C1-C8)烷基，芳基或-芳基(C1-C8)烷基-；Y为-(C1-C8)烷基或不存在；W为杂环芳基，(C3-C7)碳环或芳基，其中W的任何杂环芳基，(C3-C7)碳环或芳基可以选择性地用一个或多个(Z1)基团取代；R1为(C1-C8)烷基，(C2-C8)烯基，(C2-C8)炔基或芳基，其中芳基可以选择性地用一个或多个(C1-C8)烷基，(C2-C8)烯基，(C2-C8)炔基，(C3-C7)碳环，卤代(C1-C3)烷基，-CN，NO2，卤素，-ORa，-SRa，-S(O)2NRbRc，-NRbRc，-NRaCORd，-C(O)Ra，-C(O)ORa和-C(O)NRbRc基团中的一个或多个取代；R2为(C1-C8)烷基，(C2-C8)烯基，(C2-C8)炔基或芳基，其中芳基可以选择性地用一个或多个(C1-C8)烷基，(C2-C8)烯基，(C2-C8)炔基，(C3-C7)碳环，卤代(C1-C3)烷基，-CN，NO2，卤素，-ORe，-SRe，-S(O)2NRfRg，-NRfRg，-NReCORh，-C(O)Re，-C(O)ORe和-C(O)NRfRg基团中的一个或多个取代；I模拟链球菌SspB粘附区（BAR）并作为P. gingivalis粘附于链球菌的抑制剂。该发明还提供了制备和使用这些抑制剂的方法。

表征谱图