4,5-二氟-2-硝基苯硼酸 | 1150114-59-2

• 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: 4,5-二氟-2-硝基苯硼酸
• 英文名称: 4,5-difluoro-2-nitrophenylboronic acid
• 英文别名: (4,5-Difluoro-2-nitrophenyl)boronic acid
• CAS: 1150114-59-2
• 化学式: C₆H₄BF₂NO₄
• 分子量: 202.91
• InChiKey: CAHNMXZHYNLNCI-UHFFFAOYSA-N

物化性质

• 沸点：
  374.8±52.0 °C(Predicted)
• 密度：
  1.57±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.45
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  86.3
• 氢给体数：
  2
• 氢受体数：
  6

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4,5-Difluoro-2-nitrophenylboronic acid
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: 4,5-Difluoro-2-nitrophenylboronic acid
CAS number: 1150114-59-2

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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, refrigerated.
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: C6H4BF2NO4
Molecular weight: 202.9

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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, hydrogen fluoride.

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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：

  4,5-二氟-2-硝基苯硼酸 、 缩宫素 在 乙二胺四乙酸 、 三(2-羰基乙基)磷盐酸盐 作用下， 以 水 为溶剂， 反应 2.0h， 生成
  参考文献：
  名称：

  快速镍（ii）促进的半胱氨酸S与芳基硼酸的芳基化†

  摘要：

  半胱氨酸残基的S-酰化是蛋白质位点特异性修饰的一种越来越强大的工具，它提供了新颖的结构和电子扰动。本工作证明了操作上简单的半胱氨酸芳基化反应2-硝基取代的芳基硼酸，由简单的镍（II）盐促进。该方法在生理条件下，在纯水介质中对半胱氨酸残基具有优异的选择性，显示出惊人的快速反应速率。天然蛋白质和肽的半胱氨酸芳基化反应可以连接有用的反应性手柄，用于装订，成像或进一步偶联。

  DOI：

  10.1039/c9cc00159j