6-硝基苯并恶唑 | 17200-30-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶唑类
• 中文名称: 6-硝基苯并恶唑
• 中文别名: 6-硝基苯并噁唑；6-硝基-1,3-苯并噁唑
• 英文名称: 6-nitrobenzo[d]oxazole
• 英文别名: 6-nitrobenzoxazole；6-Nitro-benzoxazol；6-Nitro-1,3-benzoxazole
• CAS: 17200-30-5
• 化学式: C₇H₄N₂O₃
• mdl: MFCD00797933
• 分子量: 164.12
• InChiKey: NNESGHWUVLNAML-UHFFFAOYSA-N

物化性质

• 熔点：
  150-152°
• 沸点：
  165-168 °C(Press: 15 Torr)
• 密度：
  1.473±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  71.8
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 危险等级：
  IRRITANT
• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  2-8°C

SDS

Name:	6-Nitro-1 3-benzoxazole Material Safety Data Sheet
Synonym:	none know
CAS:	17200-30-5

Section 1 - Chemical Product MSDS Name:6-Nitro-1 3-benzoxazole Material Safety Data Sheet
Synonym:none know

---

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
17200-30-5	6-Nitro-1,3-benzoxazole	97+%	unlisted

Hazard Symbols: XN
Risk Phrases: 20/21/22 36/37/38

---

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Harmful by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation:
Harmful if inhaled. Causes respiratory tract irritation.
Chronic:
No information found.

---

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

---

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

---

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

---

Section 7 - HANDLING and STORAGE
Handling:
Use with adequate ventilation. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

---

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 17200-30-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

---

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: Beige
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 150 - 152 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C7H4N2O3
Molecular Weight: 164.12

---

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases, reducing agents, metals.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, carbon dioxide.
Hazardous Polymerization: Has not been reported

---

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 17200-30-5 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
6-Nitro-1,3-benzoxazole - Not listed by ACGIH, IARC, or NTP.

---

Section 12 - ECOLOGICAL INFORMATION

---

Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

---

Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

---

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 20/21/22 Harmful by inhalation, in contact with
skin and if swallowed.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 22 Do not breathe dust.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37/39 Wear suitable protective clothing, gloves
and eye/face protection.
WGK (Water Danger/Protection)
CAS# 17200-30-5: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 17200-30-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 17200-30-5 is not listed on the TSCA inventory.
It is for research and development use only.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  6-硝基苯并恶唑 在 antibody 34E₄ 作用下， 以 phosphate buffer 为溶剂， 生成 2-羟基-4-硝基苯腈
  参考文献：
  名称：

  Nonspecific Medium Effects versus Specific Group Positioning in the Antibody and Albumin Catalysis of the Base-Promoted Ring-Opening Reactions of Benzisoxazoles

  摘要：

  The mechanisms by which solvents, antibodies, and albumins influence the rates of base-catalyzed reactions of benzisoxazoles have been explored theoretically. New experimental data on substituent effects and rates of reactions in several solvents, in an antibody, and in an albumin are reported. Quantum mechanical calculations were carried out for the reactions in water and acetonitrile, and docking of the transition state into a homology model of antibody 34E4 and an X-ray structure of human serum albumin was accomplished. A microenvironment made up of catalytic polar groups (glutamate in antibody 34E4 and lysine in human serum albumin) surrounded by relatively nonpolar groups is present in both catalytic proteins.

  DOI：

  10.1021/ja0490727
• 作为产物：
  描述：

  原甲酸三乙酯 、 2-氨基-5-硝基苯酚 反应 4.0h， 以75%的产率得到6-硝基苯并恶唑
  参考文献：
  名称：

  Iodine-mediated arylation of benzoxazoles with aldehydes

  摘要：

  一种简单高效的方法已被开发，用于使用碘作为媒介对苯并噁唑进行芳香烃化反应，反应顺利进行，适用于多种底物，得到相应的芳香烃化产物，产率在中等到良好之间。

  DOI：

  10.1039/c3gc41027g

文献信息

• A Metal-Free Amination of Benzoxazoles – The First Example of an Iodide-Catalyzed Oxidative Amination of Heteroarenes
  作者：Tanja Froehr、Christian P. Sindlinger、Ulrich Kloeckner、Peter Finkbeiner、Boris J. Nachtsheim

  DOI：10.1021/ol201439t

  日期：2011.7.15

  An efficient transition-metal-free amination of benzoxazoles has been developed. With catalytic amounts of tetrabutylammoniumiodide (TBAI), aqueous solutions of H2O2 or TBHP as co-oxidant and under mild reaction conditions, highly desirable 2-aminobenzoxazoles were isolated in excellent yields of up to 93%. First mechanistic experiments indicate the in situ iodination of the secondary amine as the

  已经开发出有效的无过渡金属苯并恶唑胺化的方法。用催化量的四丁基碘化铵（TBAI），H 2 O 2或TBHP水溶液作为助氧化剂，并在温和的反应条件下，以高达93％的优异收率分离出了非常理想的2-氨基苯并恶唑。最初的机械实验表明，仲胺的原位碘化是假定的活化方式。
• Efficient and highly selective iron-catalyzed reduction of nitroarenes
  作者：Rajenahally V. Jagadeesh、Gerrit Wienhöfer、Felix A. Westerhaus、Annette-Enrica Surkus、Marga-Martina Pohl、Henrik Junge、Kathrin Junge、Matthias Beller

  DOI：10.1039/c1cc13728j

  日期：——

  Pyrolysis of iron-phenanthroline complexes supported on carbon leads to highly selective catalysts for the reduction of structurally diverse nitroarenes to anilines in 90-99% yields. Excellent chemoselectivity for the nitro group reduction is demonstrated.

  负载在碳上的铁-菲咯啉配合物的热解反应产生了高度选择性的催化剂，可将结构多样的硝基芳烃还原为苯胺，产率为90-99％。证明了用于硝基还原的优异的化学选择性。
• Palladium-catalyzed desulfitative arylation of azoles with arylsulfonyl hydrazides
  作者：Xinzhang Yu、Xingwei Li、Boshun Wan

  DOI：10.1039/c2ob26270c

  日期：——

  Palladium-catalyzed desulfitative and denitrogenative arylation of azoles with arylsulfonyl hydrazides has been achieved. A broad scope of azoles and arylsulfonyl hydrazides has been used to produce arylated azoles in high yields.

  已经实现了钯与芳基磺酰基酰肼的钯催化的脱硫和脱氮芳基化反应。各种各样的唑和芳基磺酰肼已被用于高产率地生产芳基化的唑。
• Transition‐Metal‐Free Alkylation/Arylation of Benzoxazole via Tf ₂ O‐Activated‐Amide
  作者：Zhi‐Jie Niu、Lian‐Hua Li、Xue‐Yuan Liu、Yong‐Min Liang

  DOI：10.1002/adsc.201901078

  日期：2019.11.19

  A transition‐metal‐free approach to the alkylation/arylation of benzoxazole was developed by employing Tf2O‐activated‐amide as the alkylating/arylating reagent. The mild reaction conditions, and particularly insensitivity to air and water, further enhance the synthetic potential in pharmaceutical synthesis.

  通过使用Tf 2 O活化酰胺作为烷基化/芳基化试剂，开发了一种无过渡金属的苯并恶唑烷基化/芳基化方法。温和的反应条件，尤其是对空气和水的不敏感性，进一步提高了药物合成的合成潜力。
• A Metal-Free Oxidative Amination of Benzoxazoles with Primary Amines and Ammonia
  作者：Boris Nachtsheim、Ulrich Kloeckner、Nicole Weckenmann

  DOI：10.1055/s-0031-1289902

  日期：2012.1

  An efficient synthesis of 2-aminobenzoxazoles is described by a direct oxidative amination of unfunctionalized benzoxazoles with primary amines. The reaction could be performed in the absence of transition metals by using catalytic amounts of a quaternary ammonium iodide and tert-butylhydroperoxide as a cheap and easy-to-handle co-oxidant. In addition to primary amines, aqueous solutions of NH3 were used to introduce a primary amine group into the heterocyclic core.

  报道了一种高效的2-氨基苯并噁唑合成方法，通过未官能化的苯并噁唑与伯胺直接氧化胺化实现。该反应在无需过渡金属存在的情况下，使用催化量的季铵碘盐和叔丁基过氧化氢作为廉价且易于处理的共氧化剂即可进行。除了伯胺，水溶液中的氨也被用来向杂环核心引入伯胺基团。