4-乙基联苯硼酸 | 153035-62-2

• 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: 4-乙基联苯硼酸
• 中文别名: 4'-乙基-4-二苯基硼酸；4'-乙基-4-联苯硼酸
• 英文名称: (4'-ethyl[1,1'-biphenyl]-4-yl)boronic acid
• 英文别名: 4-ethylbiphenylboronic acid；4'-ethylbiphenyl-4-yldihydroxyborane；4'-ethyl-4-biphenylboronic acid；[4-(4-ethylphenyl)phenyl]boronic acid
• CAS: 153035-62-2
• 化学式: C₁₄H₁₅BO₂
• 分子量: 226.083
• InChiKey: DEUOTLGHQXNPJY-UHFFFAOYSA-N

物化性质

• 沸点：
  401.8±48.0 °C(Predicted)
• 密度：
  1.13

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 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：
  2-8°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4’-Ethyl-4-biphenylboronic 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’-Ethyl-4-biphenylboronic acid
CAS number: 153035-62-2

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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.
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: C14H15BO2
Molecular weight: 226.1

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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

制备方法与用途

4'-乙基-4-二苯基硼酸是一种用于有机合成中间体和医药中间体的化合物，可在实验室研发和化工生产中的 Suzuki 反应过程中应用。

反应信息

• 作为反应物：
  描述：

  4-乙基联苯硼酸 在 奎宁环 、 吡啶 、 bis-triphenylphosphine-palladium(II) chloride 、 [Ir(dF(CF₃)ppy)₂(dtbbpy)](PF₆) 、 potassium carbonate 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 48.0h， 生成 tert-butyl(2-(4'-ethyl-[1,1'-biphenyl]-4-yl)-3,3-difluoroallyl)dimethylsilane
  参考文献：
  名称：

  通过氢原子转移光介导 α-三氟甲基芳基烯烃的脱氟硅烷化

  摘要：

  在此，我们报告了一种直接的、光介导的脱氟硅烷化方案，该方案通过光氧化还原催化和氢原子转移的结合将 α-三氟甲基芳基烯烃和烷基硅烷转化为 γ,γ-二氟烯丙基化合物。干净、方便的方案可以扩展到克级，其温和的条件使其非常适合复杂天然产物和药物的后期功能化。

  DOI：

  10.1021/acs.orglett.2c01448
• 作为产物：
  描述：

  2-(4-溴苯基)-6-甲基-1,3,6,2-二氧氮杂硼烷-4,8-二酮 、 4-乙基苯硼酸 在 potassium phosphate 、 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 4.0h， 生成 4-乙基联苯硼酸
  参考文献：
  名称：

  吖啶基光催化剂在芳基硼酸与贫电子烯烃的 Giese 型偶联中的应用

  摘要：

  描述了使用芳基硼酸作为芳基自由基源的可见光介导的吉斯型反应的发展。该合成方案利用对环境无害的无金属催化剂来形成 Csp 2 -Csp 3键。还报道了该方法在分批或流动合成氨基酯和抗炎药萘丁美酮中的应用。

  DOI：

  10.1016/j.tetlet.2022.153978

文献信息

• Ligand-Regulated Palladium-Catalyzed Regiodivergent Hydroarylation of the Distal Double Bond of Allenamides with Aryl Boronic Acid
  作者：Xin Du、Huan Zhao、Xinling Li、Lizhi Zhang、Yunhui Dong、Ping Wang、Daopeng Zhang、Qing Liu、Hui Liu

  DOI：10.1021/acs.joc.1c01303

  日期：2021.10.1

  inducing excellent E selectivity and anti-Markovnikov selectivity. (2) A switch of regioselectivity to 1,2-Markovnikov hydroarylation was obtained using bidentate phosphine ligand (dppf or Xantphos). The formed coordination Intermediate II led to the N-tether away from the Intermediate II and at the trans position of aryl, resulting in excellent E selectivity and Markovnikov selectivity. Meanwhile, tentative

  在钯 (II) 催化剂存在下，实现了烯酰胺远端双键与芳基硼酸的配体调节区域发散加氢芳基化，提供了各种具有优异 E 选择性和马尔科夫尼科夫/反马尔科夫尼科夫选择性的官能化烯酰胺。提出了两种可能的配位中间体负责区域发散的氢化芳基化：（1）配位中间体 I，提议通过 MeCN、远端双键、苯基与钯的配位形成，导致芳基远离中间体 I，诱导优异的 E 选择性和抗马尔科夫尼科夫选择性。(2) 区域选择性转换为 1,2- Markovnikov使用双齿膦配体（dppf 或 Xantphos）获得氢芳基化。形成的配位中间体 II导致 N-tether 远离中间体 II并位于芳基的反式位置，从而导致优异的 E 选择性和马尔可夫尼科夫选择性。同时，对机理的初步研究证明，这种加氢芳基化的氢源更可能是硼酸。芳基硼酸和钯催化剂之间的金属转移是这种转变的第一步。
• Visible-Light-Mediated Late-Stage Sulfonylation of Boronic Acids via N–S Bond Activation of Sulfonamides
  作者：Jingsong Zhen、Xian Du、Xiaohong Xu、Yihui Li、Han Yuan、Dejing Xu、Can Xue、Yong Luo

  DOI：10.1021/acscatal.1c05669

  日期：2022.2.4

  late-stage arylation of N–S bonds in sulfonamides has been developed with using readily available imines as sulfonyl radical source. Diverse complex sulfones could be synthesized by prefunctionalizaiton and subsequent N–S bond arylation, demonstrating the advantages of using sulfonamides as sulfonylation reagents. Additionally, the mechanism research revealed that probably both EDA complex chemistry and photoredox

  使用容易获得的亚胺作为磺酰基自由基源，已经开发了一种可见光介导的磺酰胺中 N-S 键的后期芳基化。通过预功能化和随后的 N-S 键芳基化可以合成多种复杂的砜，证明了使用磺胺类作为磺酰化试剂的优势。此外，机理研究表明，EDA 复合化学和光氧化还原催化可能是砜形成的原因。这种以底物范围广和反应条件简单为特征的方法还具有较高的原子经济性，因为用于合成亚胺的醛可以在反应后处理后回收。
• [EN] PYRIDIN-3-YL ACETIC ACID DERIVATIVES AS INHIBITORS OF HUMAN IMMUNODEFICIENCY VIRUS REPLICATION<br/>[FR] DÉRIVÉS DE L'ACIDE PYRIDIN-3-YL-ACÉTIQUE UTILISÉS COMME INHIBITEURS DE LA RÉPLICATION DU VIRUS DE L'IMMUNODÉFICIENCE HUMAINE
  申请人：VIIV HEALTHCARE UK (NO 5) LTD

  公开号：WO2017006281A1

  公开（公告）日：2017-01-12

  Disclosed are compounds of Formula I, including pharmaceutically acceptable salts, pharmaceutical compositions comprising the compounds, methods for making the compounds and their use in inhibiting HIV integrase and treating those infected with HIV or AIDS. (I)

  公开的是Formula I的化合物，包括药用可接受的盐，含有这些化合物的药物组合物，制备这些化合物的方法以及它们在抑制HIV整合酶和治疗感染HIV或艾滋病的人中的用途。
• Effect of lateral substitution by chlorine and fluorine atoms of 4-alkyl-p-terphenyls on mesomorphic behaviour
  作者：Marta Pytlarczyk、Ewelina Dmochowska、Michał Czerwiński、Jakub Herman

  DOI：10.1016/j.molliq.2019.111379

  日期：2019.10

  The effect of halogen substitution on thermotropic liquid crystalline materials has a significant impact on many physical and chemical properties. Replacement of hydrogen atom by one of halogen can change and tune many important parameters such as dielectric anisotropy, viscosity, clearing and melting points, type and range of liquid crystalline phase and many others. Steric effect of halogen atoms

  卤素取代对热致液晶材料的影响对许多物理和化学性质具有重大影响。用卤素之一代替氢原子可以改变和调整许多重要参数，例如介电各向异性，粘度，透明和熔点，液晶相的类型和范围以及许多其他参数。卤素原子的立体效应及其极性是两个最重要的参数，这些参数对液晶性能具有重要意义。这项工作表明小尺寸极性取代基（氯和氟原子）的位置，其末端烷基链的数量和长度（其中烷基链从乙基到戊基）的长度与十二个同源的三联苯衍生物系列的介晶性质之间的相关性。分子极化率，苯环之间的扭转角和偶极矩的计算分析支持了所研究化合物的相关性。这项工作可能有助于规划具有预测的同构性的液晶化合物的新结构。合成的化合物显示出形成高度有序的近晶相的强烈趋势，而只有11种化合物观察到向列相。
• 1,1-Difluoroethyl chloride (CH₃CF₂Cl), a novel difluoroalkylating reagent for 1,1-difluoroethylation of arylboronic acids
  作者：Jianchang Liu、Jida Zhang、Chaolin Wu、Hefu Liu、Hui Liu、Fenggang Sun、Yueyun Li、Yuying Liu、Yunhui Dong、Xinjin Li

  DOI：10.1039/c9ra06406k

  日期：——

  1,1-Difluoroethylated aromatics are of great importance in medicinal chemistry and related fields. 1,1-Difluoroethyl chloride (CH3CF2Cl), a cheap and abundant industrial raw material, is viewed as an ideal 1,1-difluoroethylating reagent, but the direct introduction of the difluoroethyl (CF2CH3) group onto aromatic rings using CH3CF2Cl has not been successfully accomplished. Herein, we disclose a nickel-catalyzed

  1,1-二氟乙基化芳烃在药物化学及相关领域具有重要意义。1,1-二氟乙基氯（CH 3 CF 2 Cl）是一种廉价且丰富的工业原料，被视为理想的1,1-二氟乙基化试剂，但将二氟乙基（CF 2 CH 3）基团直接引入芳烃使用 CH 3 CF 2 Cl 的环尚未成功完成。在此，我们公开了一种镍催化的芳基硼酸与 CH 3 CF 2 Cl 的 1,1-二氟乙基化反应，用于合成 (1,1-二氟乙基)芳烃。