2,4-二溴-5-氟苯甲醚 | 861928-16-7

• 物质功能分类: 有机原料 - 有机氟化合物 - 氟苯甲醚系列
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 2,4-二溴-5-氟苯甲醚
• 英文名称: 2,4-dibromo-5-fluoroanisole
• 英文别名: 1,5-dibromo-2-fluoro-4-methoxybenzene
• CAS: 861928-16-7
• 化学式: C₇H₅Br₂FO
• 分子量: 283.923
• InChiKey: WUWJMNYYKSURFP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  2

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,4-Dibromo-5-fluoroanisole
Synonyms: 1,5-Dibromo-2-fluoro-4-methoxybenzene

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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-Dibromo-5-fluoroanisole
CAS number: 861928-16-7

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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.
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: C7H5Br2FO
Molecular weight: 283.9

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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, hydrogen fluoride, hydrogen bromide.

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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：

  2,4-二溴-5-氟苯甲醚 、 N,N-二甲基甲酰胺 在 正丁基锂 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 0.5h， 以82%的产率得到5-溴-2-氟-4-甲氧基苯甲醛
  参考文献：
  名称：

  取代的二卤代苯与丁基锂之间的卤素-锂交换：在官能化溴代苯甲醛的区域选择性合成中的应用

  摘要：

  非对称取代的单官能和双官能二卤代苯C 6 H 3 XHal 2和C 6 H 2 XYHal 2之间的卤素-锂互变反应（Hal = Br，I； X，Y = F，OR，CF 3，CH（OMe）2）研究了丁基锂和丁基锂。将所得的有机锂中间体以中等至良好的产率转化成相应的苯甲醛。通常，邻位的溴原子官能团中的α优先被锂取代。具有双功能系统的分子内竞争实验表明，与甲氧基和二甲氧基甲基相比，氟能够更强地激活相邻的溴原子。用碘代替未活化的溴后，由于优选的碘-锂交换，可以完全逆转这种反应模式。

  DOI：

  10.1016/j.tet.2005.04.051
• 作为产物：
  描述：

  2-溴-5-氟苯酚 在 sodium hydroxide 、 溴 作用下， 以 水 为溶剂， 生成 2,4-二溴-5-氟苯甲醚
  参考文献：
  名称：

  取代的二卤代苯与丁基锂之间的卤素-锂交换：在官能化溴代苯甲醛的区域选择性合成中的应用

  摘要：

  非对称取代的单官能和双官能二卤代苯C 6 H 3 XHal 2和C 6 H 2 XYHal 2之间的卤素-锂互变反应（Hal = Br，I； X，Y = F，OR，CF 3，CH（OMe）2）研究了丁基锂和丁基锂。将所得的有机锂中间体以中等至良好的产率转化成相应的苯甲醛。通常，邻位的溴原子官能团中的α优先被锂取代。具有双功能系统的分子内竞争实验表明，与甲氧基和二甲氧基甲基相比，氟能够更强地激活相邻的溴原子。用碘代替未活化的溴后，由于优选的碘-锂交换，可以完全逆转这种反应模式。

  DOI：

  10.1016/j.tet.2005.04.051

文献信息

• Halogen–lithium exchange between substituted dihalobenzenes and butyllithium: application to the regioselective synthesis of functionalized bromobenzaldehydes
  作者：Marek Dąbrowski、Joanna Kubicka、Sergiusz Luliński、Janusz Serwatowski

  DOI：10.1016/j.tet.2005.04.051

  日期：2005.7

  Halogen–lithium interconversion reactions between unsymmetrically substituted mono- and bifunctional dihalobenzenes C6H3XHal2 and C6H2XYHal2 (Hal=Br, I; X, Y=F, OR, CF3, CH(OMe)2) and butyllithium were investigated. The resultant organolithium intermediates were converted into the corresponding benzaldehydes in moderate to good yields. As a rule, bromine atoms in the position ortho to the functional group

  非对称取代的单官能和双官能二卤代苯C 6 H 3 XHal 2和C 6 H 2 XYHal 2之间的卤素-锂互变反应（Hal = Br，I； X，Y = F，OR，CF 3，CH（OMe）2）研究了丁基锂和丁基锂。将所得的有机锂中间体以中等至良好的产率转化成相应的苯甲醛。通常，邻位的溴原子官能团中的α优先被锂取代。具有双功能系统的分子内竞争实验表明，与甲氧基和二甲氧基甲基相比，氟能够更强地激活相邻的溴原子。用碘代替未活化的溴后，由于优选的碘-锂交换，可以完全逆转这种反应模式。