3,5-二甲基-4-乙氧基苯硼酸 | 850568-59-1

• 物质功能分类: 化学试剂 - 有机试剂 - 硼酸
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 3,5-二甲基-4-乙氧基苯硼酸
• 中文别名: 3,5-二甲基-4-乙氧苯基硼酸；4-乙氧基-3,5-二甲基苯硼酸；3,5-二甲基-4-乙氧基苯基硼酸
• 英文名称: 3,5-dimethyl-4-ethoxyphenylboronic acid
• 英文别名: 4-ethoxy-3,5-dimethylphenylboronic acid；(4-Ethoxy-3,5-dimethylphenyl)boronic acid
• CAS: 850568-59-1
• 化学式: C₁₀H₁₅BO₃
• mdl: MFCD02179463
• 分子量: 194.038
• InChiKey: FMJASQDMWVBTOJ-UHFFFAOYSA-N

物化性质

• 熔点：
  206-211 °C(lit.)
• 沸点：
  348.0±52.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)
• 溶解度：
  溶于甲醇

计算性质

• 辛醇/水分配系数(LogP)：
  2.66
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  49.7
• 氢给体数：
  2
• 氢受体数：
  3

安全信息

• 危险等级：
  IRRITANT, KEEP COLD
• 危险品标志：
  Xi
• 海关编码：
  2931900090
• 危险性防范说明：
  P264,P280,P302+P352+P332+P313+P362+P364,P305+P351+P338+P337+P313
• 危险性描述：
  H315,H319

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
3,5-Dimethyl-4-ethoxyphenylboronic acid
Product Name:
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
P261: Avoid breathing dust/fume/gas/mist/vapours/spray
Wear protective gloves/protective clothing/eye protection/face protection
P280:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P405: Store locked up

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Section 3. Composition/information on ingredients.
3,5-Dimethyl-4-ethoxyphenylboronic acid
Ingredient name:
CAS number: 850568-59-1

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Section 4. First aid measures
Immediately wash skin with copious amounts of water for at least 15 minutes while removing
Skin contact:
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.
Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
Ingestion:

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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.
Storage: Store in closed vessels.

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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
Not specified
Appearance:
Boiling point: No data
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C10H15BO3
Molecular weight: 194.0

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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.

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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：

  (E)-4-(1,2-dichlorovinyloxy)benzonitrile 、 3,5-二甲基-4-乙氧基苯硼酸 在 tris-(dibenzylideneacetone)dipalladium(0) 、 caesium carbonate 、 cesium fluoride 、 双(2-二苯基磷苯基)醚 作用下， 以 1,4-二氧六环 为溶剂， 反应 30.0h， 以87%的产率得到2-(3,5-dimethyl-4-ethoxyphenyl)-5-cyanobenzo[b]furan
  参考文献：
  名称：

  来自 (E)-1,2-二氯乙烯基醚和有机硼试剂的 2-取代苯并 [b] 呋喃：一锅 Suzuki 偶联/直接芳基化的范围和机理研究

  摘要：

  2-取代的苯并[b]呋喃可以很容易地由简单的苯酚、硼酸或其他有机硼试剂和三氯乙烯组装而成。整个过程只需要两个合成步骤，关键步骤是一锅顺序 Suzuki 交叉偶联/直接芳基化反应。该方法可以容忍许多有用的功能组，并且不需要安装任何其他激活功能。该过程的模块化特性允许使用基本相同的化学物质快速合成许多类似物，在药物开发中具有特殊价值。动力学同位素效应研究的结果和对该过程区域选择性的研究表明，直接芳基化步骤很可能不涉及亲电钯化。

  DOI：

  10.1002/ejoc.201000787

文献信息

• Copper‐Catalyzed Arylation of Remote C(sp ³ )−H Bonds in Carboxamides and Sulfonamides
  作者：Zhaodong Li、Qian Wang、Jieping Zhu

  DOI：10.1002/anie.201807623

  日期：2018.10

  Reported herein is an unprecedented copper‐catalyzed arylation of remote C(sp3)−H bonds. Stirring a trifluorotoluene solution of either N‐fluorocarboxamides or N‐fluorosulfonamides and arylboronic acids in the presence of a catalytic amount of copper(II) trifluoroacetylacetonate, 2,2′‐bipyridine, and sodium tert‐butoxide afforded the γ‐ and δ‐C(sp3)−H arylated carboxamides and sulfonamides, respectively

  本文报道的是远端C（sp 3）-H键的铜催化芳基化作用。在催化量的三氟乙酰丙酮铜（II），2,2'-联吡啶和叔丁醇钠存在下，搅拌N-氟甲酰胺或N-氟磺酰胺和芳基硼酸的三氟甲苯溶液，得到γ-和δ-C （sp 3）-H芳基化羧酰胺和磺酰胺，分别具有良好或高收率。机理研究表明，该反应可能通过生成酰胺基，进行1,5-氢原子转移（HAT）以及铜催化的碳原子与芳基硼酸的交叉偶联来进行。