4-甲基-β-苯乙烯基硼酸频哪醇酯 | 149777-84-4

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物 - 环羧酸
• 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-甲基-β-苯乙烯基硼酸频哪醇酯
• 中文别名: 4-甲基-beta-苯乙烯基硼酸频那醇酯；4-甲基-苯乙烯基硼酸频哪酯
• 英文名称: (E)-4,4,5,5-tetramethyl-2-(4-methylstyryl)-1,3,2-dioxaborolane
• 英文别名: (E)-2-(4-methylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane；4-Methyl-beta-styrylboronic acid pinacol ester；4,4,5,5-tetramethyl-2-[(E)-2-(4-methylphenyl)ethenyl]-1,3,2-dioxaborolane
• CAS: 149777-84-4
• 化学式: C₁₅H₂₁BO₂
• 分子量: 244.142
• InChiKey: HHBWKASJNTZJLB-ZHACJKMWSA-N

物化性质

• 熔点：
  56-58°C
• 稳定性/保质期：

  避氧化物

计算性质

• 辛醇/水分配系数(LogP)：
  3.64
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2934999090
• 安全说明：
  S22,S24/25
• 危险性防范说明：
  P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P340,P330,P363,P501
• 危险性描述：
  H302,H312,H332
• 储存条件：
  保存方法：密闭、阴凉、干燥处。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-Methyl-beta-styrylboronic 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: 4-Methyl-beta-styrylboronic acid pinacol ester
CAS number: 149777-84-4

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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: C15H21BO2
Molecular weight: 244.1

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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：

  4-甲基-β-苯乙烯基硼酸频哪醇酯 在 sodium hydroxide 、 碘 作用下， 以 乙醚 、 水 为溶剂， 反应 0.5h， 以84%的产率得到(E)-1-(2-iodovinyl)-4-methylbenzene
  参考文献：
  名称：

  （E）-或（Z）-β-芳基乙烯基卤化物通过硼化偶联/卤化硼化方案进行立体选择性合成†

  摘要：

  一种新的立体选择性方法，是通过一锅法通过硼化偶联/卤代硼烷基化合成苯乙烯和硼酸乙烯基酯合成（E）-β-芳基乙烯基碘化物和（E）-或（Z）-β-芳基乙烯基溴化物的。报告。根据卤化剂以及卤代硼烷基化反应的方式，选择性地形成（E）或（Z）异构体。

  DOI：

  10.1039/c7ob00054e
• 作为产物：
  描述：

  三甲基(对甲苯乙炔)硅烷 在 二异丁基氢化铝 、 potassium carbonate 作用下， 以 甲醇 、 正己烷 为溶剂， 反应 19.0h， 生成 4-甲基-β-苯乙烯基硼酸频哪醇酯
  参考文献：
  名称：

  NH 2定向的2-乙烯基苯胺与乙烯基苯并恶唑酮的CH烯基化反应

  摘要：

  与链烯基λ第一定向基团的介导C-H烯基3 -iodanes作为亲电烯烃-转移试剂已经研制成功。将游离芳族胺作为具有挑战性但合成上有价值的导向基团与Ir III催化剂结合使用，能够以高达98％的极高收率和极高至完美的（Z，E）立体选择性合成高度理想的1,3-二烯。证明了广泛的底物范围和进一步的合成修饰。

  DOI：

  10.1021/acs.orglett.7b02630

文献信息

• Ruthenium-Catalyzed Oxidative Cross-Coupling Reaction of Activated Olefins with Vinyl Boronates for the Synthesis of (<i>E</i>,<i>E</i>)-1,3-Dienes
  作者：Dattatraya H. Dethe、Nagabhushana C. Beeralingappa、Amar Uike

  DOI：10.1021/acs.joc.0c02823

  日期：2021.2.19

  An oxidative cross-coupling reaction between activated olefins and vinyl boronate derivatives has been developed for the highly stereoselective construction of synthetically useful (E,E)-1,3-dienes. The highlight of this reaction is that exclusive stereoselectivity (only E,E-isomer) was achieved from a base-free, ligand-free, and mild catalytic condition with a less expensive [RuCl2(p-cymene)]2 catalyst

  已经开发出活化烯烃和乙烯基硼酸酯衍生物之间的氧化交叉偶联反应，以用于合成有用的（E，E）-1，3-二烯的高度立体选择性的结构。该反应的亮点在于，使用便宜的[RuCl 2（p- Cymene）] 2催化剂，可从无碱，无配体和温和的催化条件下获得独特的立体选择性（仅E，E-异构体）。
• Direct Synthesis of Alkenylboronates from Alkenes and Pinacol Diboron via Copper Catalysis
  作者：Wenkui Lu、Zengming Shen

  DOI：10.1021/acs.orglett.8b03599

  日期：2019.1.4

  We report an efficient approach for the direct synthesis of alkenylboronates using copper catalysis. The Cu/TEMPO catalyst system (where TEMPO = (2,2,6,6-tetramethylpiperidin-1-yl)oxyl) exhibits both excellent reactivity and selectivity for the synthesis of alkenylboronates, starting from inexpensive and abundant alkenes and pinacol diboron. This approach allows for the direct functionalization of

  我们报告了一种使用铜催化直接合成烯基硼酸酯的有效方法。Cu / TEMPO催化剂体系（其中TEMPO =（2,2,6,6-四甲基哌啶-1-基）氧基）对链烯基硼酸酯的合成具有极好的反应性和选择性，从廉价和丰富的烯烃和频哪醇二硼开始。该方法允许芳族和脂族末端烯烃两者的直接官能化。机理实验表明，烯基硼酸酯由氧硼化中间体产生。
• Ligand survey results in identification of PNP pincer complexes of iridium as long-lived and chemoselective catalysts for dehydrogenative borylation of terminal alkynes
  作者：Chun-I Lee、Jessica C. DeMott、Christopher J. Pell、Alyson Christopher、Jia Zhou、Nattamai Bhuvanesh、Oleg V. Ozerov

  DOI：10.1039/c5sc02161h

  日期：——

  Following the report on the successful use of SiNN pincer complexes of iridium as catalysts for dehydrogenative borylation of terminal alkynes (DHBTA) to alkynylboronates, this work examined a wide variety of related pincer ligands in the supporting role in DHBTA. The ligand selection included both new and previously reported ligands and was developed to explore systematic changes to the SiNN framework

  继关于成功使用铱的 SiNN 钳形配合物作为末端炔烃 (DHBTA) 脱氢硼化为炔基硼酸盐的催化剂的报告之后，这项工作研究了各种相关钳形配体在 DHBTA 中的支持作用。配体选择包括新的和以前报道的配体，旨在探索 SiNN 框架（8-（2-二异丙基甲硅烷基苯基）氨基喹啉）的系统变化。令人惊讶的是，只有二芳基氨基/双（膦） PNP 系统显示出任何 DHBTA 反应性。筛选中使用的特定 PNP 配体（带有两个二异丙基膦基侧供体）显示 DHBTA 活性低于 SiNN。然而，利用 PNP 系统提供的配体优化机会，通过磷取代的变化导致发现了一种催化剂，其活性、寿命和范围远远超过了原始 SiNN 原型。在模型 PNP 系统中制备了几种 Ir 配合物，并作为催化循环中的潜在中间体进行了评估。其中，(PNP)Ir 二硼基络合物和硼基亚乙烯基络合物显示出催化能力较差，因此可能不是催化循环的一部分。
• Aluminum Hydroxide Secondary Building Units in a Metal–Organic Framework Support Earth-Abundant Metal Catalysts for Broad-Scope Organic Transformations
  作者：Xuanyu Feng、Pengfei Ji、Zhe Li、Tasha Drake、Pau Oliveres、Emily Y. Chen、Yang Song、Cheng Wang、Wenbin Lin

  DOI：10.1021/acscatal.9b00259

  日期：2019.4.5

  suggested σ-bond metathesis as a key step for the MIL-53(Al)-CoH-catalyzed addition reactions. MIL-53(Al)-FeCl competently catalyzed oxidative Csp3–H amination and Wacker-type alkene oxidation. XANES analysis revealed the oxidation of FeII to FeIII centers in the activated MIL-53(Al)-FeCl catalyst and suggested that oxidative Csp3–H amination occurs via the formation of FeIII–OtBu species by single electron

  氧化铝（Al 2 O 3）表面的固有异质性对氧化铝负载的单中心非均相催化剂的开发提出了挑战，并阻碍了在分子水平上催化物种的表征以及对催化反应机理细节的阐明。 。这里，我们报告与式Al（μ在MIL-53（Al）的金属-有机骨架（MOF）的使用氢氧化铝次级结构单元的（事业部）2 -OH）（BDC）（BDC = 1,4-苯二甲酸）作为Al 2 O 3表面的均匀且在结构上定义的功能模拟物，用于负载地球富集金属（EAM）催化剂。该μ 2MIL-53（Al）SBU中的-OH基很容易去质子化，并用CoCl 2和FeCl 2金属化，从而得到MIL-53（Al）-CoCl和MIL-53（Al）-FeCl预催化剂，其特征在于粉末X射线衍射，氮吸附，元素分析，密度泛函理论和扩展X射线精细结构光谱学。用NaBEt 3 H活化将MIL-53（Al）-CoCl转化为MIL-53（Al）-CoH，可有效催化炔烃和腈的硼
• Nickel(II)-Catalyzed Borylation of Alkenyl Methyl Ethers via C–O Bond Cleavage
  作者：Xiaodong Qiu、Yangyang Li、Li Zhou、Peishan Chen、Fan Li、Yanan Zhang、Yong Ling

  DOI：10.1021/acs.orglett.0c02236

  日期：2020.8.21

  A new protocol has been developed for the borylation of conjugated alkenyl methyl ethers using B2Pin2 via C–O bond cleavage catalyzed by Ni(II). In this cross-coupling reaction, both E/Z isomers of alkenyl ethers are converted into (E)-alkenyl boronic esters with good reactivity. This transformation exhibits high chemoselectivity in the presence of competitive C–O bonds such as aryl ether, ester, amide

  已经开发了一种新的协议，用于使用B 2 Pin 2通过Ni（II）催化的C–O键断裂来使共轭烯基甲基醚硼化。在这种交叉偶联反应中，烯基醚的两个E / Z异构体都被转化为具有良好反应性的（E）-烯基硼酸酯。在竞争性的C–O键（例如芳基醚，酯，酰胺和硫醚基团）的存在下，这种转变表现出高化学选择性，从而为构建各种硼酸烯基酯提供了一种新方法。