2-甲基苯硼酸频那醇酯 | 195062-59-0

• 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 - 苯和取代衍生物
• 中文名称: 2-甲基苯硼酸频那醇酯
• 中文别名: 2-甲基苯硼酸频呐醇酯；2-甲基苯硼酸频哪醇酯
• 英文名称: 2-methylphenylboronic acid pinacol ester
• 英文别名: 4,4,5,5-tetramethyl-2-(o-tolyl)-1,3,2-dioxaborolane；2-(2-methyl-phenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane；4,4,5,5-tetramethyl-2-(2-methylphenyl)-1,3,2-dioxaborolane；2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)toluene；pinacol 2-methylphenylboronate；o-toluene boronic acid pinacol ester；o-tolylboronic acid pinacol ester
• CAS: 195062-59-0
• 化学式: C₁₃H₁₉BO₂
• 分子量: 218.104
• InChiKey: NUFSJKMRPYGNHV-UHFFFAOYSA-N

物化性质

• 熔点：
  18 °C
• 沸点：
  303.1±21.0 °C(Predicted)
• 密度：
  0.98±0.1 g/cm3(Predicted)
• 最大波长(λmax)：
  274nm(CH3CN)(lit.)

计算性质

• 辛醇/水分配系数(LogP)：
  2.29
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2931900090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302
• 储存条件：
  存放于惰性气体中，避免与空气接触。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-Methylphenylboronic acid, pinacol ester
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: 2-Methylphenylboronic acid, pinacol ester
CAS number: 195062-59-0

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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: C13H19BO2
Molecular weight: 218.1

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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：

  2-甲基苯硼酸频那醇酯 在 air 作用下， 反应 16.0h， 以13 mg的产率得到邻甲酚
  参考文献：
  名称：

  芳基卤化物的可见光光氧化还原硼化和随后的好氧氧化羟化反应

  摘要：

  开发了有效和实用的芳基卤化物的可见光光氧化还原硼化和随后的好氧氧化羟基化反应。该方案使用容易获得的芳基卤化物和双（频哪醇）二硼烷为原料，fac- Ir（ppy）3作为光催化剂，并以高收率获得了相应的芳基硼酸酯和苯酚。该方法显示出一些优点，包括简单的设备，温和的条件，容易的操作和广泛的底物范围。因此，它们应该为化学转化提供有价值的策略。

  DOI：

  10.1021/acs.orglett.6b02553
• 作为产物：
  描述：

  2-氯甲苯 在 甲醇 、 palladium diacetate 、 三乙胺 、 potassium iodide 、 2-二环己基磷-2,4,6-三异丙基联苯 作用下， 以 乙酸乙酯 为溶剂， 反应 21.0h， 生成 2-甲基苯硼酸频那醇酯
  参考文献：
  名称：

  通过使用二异丙基氨基硼烷作为硼化试剂在温和条件下将未活化的芳基氯化物硼化

  摘要：

  描述了通过使用芳基（氨基）硼烷从芳基氯化物合成芳基硼酸酯衍生物。在温和条件下，芳基氯化物和二异丙基氨基硼烷之间的钯催化偶联导致形成CB键。宽泛的官能团是可以容忍的，这使得该方法对官能化芳族化合物的硼酸酯化特别有用。

  DOI：

  10.1002/chem.201304861

文献信息

• An Opportunity for Mg-Catalyzed Grignard-Type Reactions: Direct Coupling of Benzylic Halides with Pinacolborane with 10 mol % of Magnesium
  作者：Christine Pintaric、Sandra Olivero、Yves Gimbert、Pierre Y. Chavant、Elisabet Duñach

  DOI：10.1021/ja1052973

  日期：2010.9.1

  Mg in catalytic amounts as the only metal permits the reductive coupling between benzyl halides and pinacolborane. HBpin acts both as an electrophile and as a reducing agent to regenerate an organomagnesium species in situ. An hydride oxidation mechanism is proposed on the basis of DFT calculations.

  催化量的镁作为唯一的金属允许苄基卤化物和频哪醇硼烷之间的还原偶联。HBpin 既作为亲电子试剂又作为还原剂在原位再生有机镁物质。在 DFT 计算的基础上提出了氢化物氧化机理。
• PROCESS FOR PREPARING BORONIC ACIDS AND ESTERS IN THE PRESENCE OF MAGNESIUM METAL
  申请人：Dunach Isabel

  公开号：US20110282090A1

  公开（公告）日：2011-11-17

  The present invention relates to the process for preparing a boronic acid or ester chemically, in which an aromatic compound is reacted with a boronating agent, in the presence of magnesium metal (Mg 0 ). The invention also relates to the boronic acids or esters that can be obtained by means of this process and to the use thereof for example as a synthesis intermediate, in the Suzuki reaction, in the pharmaceutical or alternatively electronics field.

  本发明涉及一种制备硼酸或酯的化学过程，其中芳香化合物在镁金属（Mg0）存在下与硼化剂发生反应。该发明还涉及通过该过程可以获得的硼酸或酯，以及其作为合成中间体、在Suzuki反应中、在制药或电子领域中的用途。
• Additive- and Photocatalyst-Free Borylation of Arylazo Sulfones under Visible Light
  作者：Yuliang Xu、Xinying Yang、Hao Fang

  DOI：10.1021/acs.joc.8b01662

  日期：2018.10.19

  developed a photocatalyst-free and additive-free, visible light induced borylation reaction using arylazo sulfones as starting material. This protocol shows some advantages such as mild conditions, simple equipment, and wide substrate scope, which gives a complementary protocol for the preparation of arylboronates.

  我们开发了一种以芳基偶氮砜为起始原料的无光催化剂和无添加剂的可见光诱导的硼酸酯化反应。该方案显示出一些优点，例如温和的条件，简单的设备和广泛的底物范围，为制备芳基硼酸酯提供了补充方案。
• Suzuki–Miyaura coupling of unstrained ketones <i>via</i> chelation-assisted C–C bond cleavage
  作者：Cheng Jiang、Zhao-Jing Zheng、Tian-Yang Yu、Hao Wei

  DOI：10.1039/c8ob02075b

  日期：——

  Herein, we report that unstrained ketones can be efficiently employed as electrophiles in Suzuki–Miyaura reactions via catalytic activation of unstrained C–C bonds assist by an N-containing directing group. A wide range of aromatic ketones directly coupled with boronic ester with excellent functional group tolerance. This strategy provides an alternative and versatile approach to constructing biaryls

  在本文中，我们报道，未催化反应的酮可通过含氮的导向基团催化未反应的C-C键的催化活化而有效地用作Suzuki-Miyaura反应中的亲电子试剂。多种芳族酮直接与硼酸酯偶联，具有出色的官能团耐受性。该策略提供了从未应变的酮构建联芳基的另一种通用方法。
• Efficient Synthesis of Aryl Boronates via Zinc-Catalyzed Cross-Coupling of Alkoxy Diboron Reagents with Aryl Halides at Room Temperature
  作者：Shubhankar Kumar Bose、Todd B. Marder

  DOI：10.1021/ol502120q

  日期：2014.9.5

  A zinc(II)/NHC system catalyzes the borylation of aryl halides with diboron (4) reagents in the presence of KOMe at rt. This transformation can be applied to a broad range of substrates with high functional group compatibility. Radical scavenger experiments do not support a radical-mediated process.

  锌（II）/ NHC系统在室温下在KOMe存在下催化芳基卤化物与二硼（4）试剂的硼酸酯化反应。这种转变可应用于具有高官能团相容性的各种基材。自由基清除剂实验不支持自由基介导的过程。