2,4,6-三甲氧基苯硼酸 | 135159-25-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 中文名称: 2,4,6-三甲氧基苯硼酸
• 英文名称: 2,4,6-trimethoxyphenylboronic acid
• 英文别名: (2,4,6-trimethoxyphenyl)boronic acid
• CAS: 135159-25-0
• 化学式: C₉H₁₃BO₅
• 分子量: 212.01
• InChiKey: PKLRXZVPEQJTTJ-UHFFFAOYSA-N

物化性质

• 熔点：
  96-100℃
• 沸点：
  413.8±55.0 °C(Predicted)
• 密度：
  1.21±0.1 g/cm3(Predicted)
• 稳定性/保质期：

  如果按照规格使用和储存，则不会分解，也未有已知危险反应。应避免与氧化物接触。

计算性质

• 辛醇/水分配系数(LogP)：
  -0.61
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  68.2
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 安全说明：
  S26,S36
• 海关编码：
  2931900090
• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
2,4,6-Trimethoxyphenylboronic 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.
2,4,6-Trimethoxyphenylboronic acid
Ingredient name:
CAS number: 135159-25-0

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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.
Store in closed vessels, under −20◦C.
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
Not specified
Appearance:
Boiling point: No data
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C9H13BO5
Molecular weight: 212.0

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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：

  2,4,6-三甲氧基苯硼酸 在 四(三苯基膦)钯 硫酸 、 三氟化硼乙醚 、 碘 、 potassium carbonate 作用下， 以 1,4-二氧六环 、 水 、 二甲基亚砜 为溶剂， 反应 25.0h， 生成 Amentoflavon
  参考文献：
  名称：

  A new strategy for the synthesis of biflavonoids via arylboronic acids.

  摘要：

  Amentoflavone derivatives were prepared by catalytic coupling of 8-flavoneboronic acids with iodoflavones. 3-Arylflavones, as biflavonoid synthon, are accessible by the method.

  DOI：

  10.1016/s0040-4039(00)79688-2
• 作为产物：
  描述：

  1,3,5-三甲氧基苯 在 正丁基锂 、 硼酸三甲酯 、 四甲基乙二胺 、 氯化铵 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 以62%的产率得到2,4,6-三甲氧基苯硼酸
  参考文献：
  名称：

  2,4,6-三烷氧基苯基硼酸与烯丙基三氟甲磺酸酯的铃木偶联反应：不对称合成内酯模板的花萼毒素

  摘要：

  已经发现2,4,6-三烷氧基苯基硼酸和烯醇三氟甲磺酸酯之间的Suzuki偶联反应以优异的产率发生，而使用甲苯磺酸甲苯酚未能得到任何所需的产物。该偶联反应导致内酯的合成，该内酯可以用作几种花萼类似物的前体。

  DOI：

  10.1016/j.tetlet.2006.01.159

文献信息

• Design, Synthesis, and Biological Evaluation of Novel Pyridine-Bridged Analogues of Combretastatin-A4 as Anticancer Agents
  作者：Shilong Zheng、Qiu Zhong、Madhusoodanan Mottamal、Qiang Zhang、Changde Zhang、Elise LeMelle、Harris McFerrin、Guangdi Wang

  DOI：10.1021/jm500002k

  日期：2014.4.24

  A series of novel pyridine-bridged analogues of combretastatin-A4 (CA-4) were designed and synthesized. As expected, the 4-atom linker configuration retained little cytotoxicities in the compounds 2e, 3e, 3g, and 4i. Activities of the analogues with 3-atom linker varied widely depending on the phenyl ring substitutions, and the 3-atom linker containing nitrogen represents the more favorable linker

  设计并合成了一系列新型吡啶桥连的考布他汀-A4 (CA-4) 类似物。正如预期的那样，4 原子接头构型在化合物2e、3e、3g和4i 中几乎没有细胞毒性。具有 3 原子接头的类似物的活性因苯环取代而有很大差异，含氮的 3 原子接头代表更有利的接头结构。其中，三种类似物（4h、4s和4t）以与 CA-4 相当的方式在体内有效抑制细胞存活和生长、阻止细胞周期并阻断血管生成和脉管系统形成。叠加4H和微管蛋白的秋水仙碱结合口袋中的4s显示 CA- 4、4h和4s的结合姿势是相似的，正如竞争性结合试验所证实的，其中测量了配体替代微管蛋白结合的秋水仙碱的能力。结合数据与观察到的抗增殖和抑制血管生成的生物活性一致，但不能预测它们的抗微管蛋白聚合活性。
• Ring Selectivity in the Na/EtOH Reduction of 1-Aryl-7-methoxynaphthalenes
  作者：M. Carreño、Antonio Urbano、Marcos González-López、Alfonso Latorre

  DOI：10.1055/s-2005-869857

  日期：——

  Na/EtOH reduction of 1-aryl-7-methoxynaphthalenes occurred preferentially at the A-ring when no substituents were present at the ortho-positions of the aryl group (up to 100% selectivity), to afford 1-aryl-7-methoxy-1,2,3,4-tetrahydronaphthalenes. Ortho-substitution of the 1-aryl moiety favored B-ring reduction (up to 85:15 selectivity) giving rise, after acidic hydrolysis of the ­vinyl ether intermediate, to the corresponding 8-aryl-2-tetralones.

  当1-芳基-7-甲氧基萘的苯基上没有在邻位存在取代基时，Na/EtOH还原反应优先发生在A环（选择性高达100%），生成1-芳基-7-甲氧基-1,2,3,4-四氢萘。而当1-芳基部分的邻位存在取代基时，则偏向于对B环的还原（选择性高达85:15），经乙烯基醚中间体的酸催化水解后，生成相应的8-芳基-2-四氢萘酮。
• Benzotriazol-1-ylmethanol: An excellent bidentate ligand for the copper/palladium-catalyzed C-N and C-C coupling reaction
  作者：Rajeev R. Jha、Jaspal Singh、Rakesh K. Tiwari、Akhilesh K. Verma

  DOI：10.3998/ark.5550190.0014.219

  日期：——

  benzotriazole based N,O bidentate liga nds for the Cu-catalyzed N-arylation of πexcessive nitrogen heterocycles is described. This ligand accomplishes C-N coupling of Nheterocycles and C-C coupling of boronic acids with a variety of hindered, functionalized aryl/heteroaryl halides under mild reaction conditi ons in good to excellent yields. Using his ligand C-N and C-C (Suzuki) couplings with bromoarenes

  描述了一种有效的基于苯并三唑的 N,O 双齿配体，用于铜催化的 π 过量氮杂环的 N-芳基化。该配体在温和的反应条件下以良好至极好的产率完成了杂环的 CN 偶联和硼酸与各种受阻的官能化芳基/杂芳基卤化物的 CC 偶联。使用他的配体 CN 和 CC (Suzuki) 与溴芳烃偶联可以在较少的催化剂负载下进行。一系列失活和受阻的芳基卤化物可以干净地反应，以高产率提供功能化的联芳基衍生物。
• 2-(1-Benzotriazolyl)pyridine: A Robust Bidentate Ligand for the Palladium-Catalyzed CC (Suzuki, Heck, Fujiwara-Moritani, Sonogashira), CN and CS Coupling Reactions
  作者：Akhilesh K. Verma、Rajeev R. Jha、Ritu Chaudhary、Rakesh K. Tiwari、Abhinandan K. Danodia

  DOI：10.1002/adsc.201200583

  日期：2013.2.1

  designed and employed for the palladium-catalyzed CC (Suzuki, Heck, Fujiwara–Moritani, and Sonogashira), CN and CS coupling reactions. The ligand was found to be inexpensive, thermally stable, easy to synthesize from easily accessible starting materials on a multigram scale, show simplicity in use, and robustness in application, making this ligand effective for different coupling reactions. Suitably, the

  设计了一种新型的双齿配体1-（吡啶-2-基）-1 H-苯并[ d ] [1,2,3]三唑，并用于钯催化的CC（Suzuki，Heck，Fujiwara– Moritani和Sonogashira），CN和CS偶联反应。发现该配体便宜，热稳定，易于以几克规模由容易获得的起始原料合成，显示出使用简单性和在应用中的坚固性，从而使该配体对于不同的偶联反应有效。适当地，苯并三唑环的NN键的供体能力和吡啶环的N上的孤对电子增强了配体的二齿能力。
• Conformationally Rigid Chiral Pyridine N-Oxides as Organocatalyst: Asymmetric Allylation of Aldehydes
  作者：Elumalai Gnanamani、Nagamalla Someshwar、Chinnasamy Ramaraj Ramanathan

  DOI：10.1002/adsc.201200115

  日期：2012.8.13

  unit with a conformationally rigid chiral backbone has been designed and synthesized in an enantiomerically pure form to utilize in the Lewis base-catalyzed Sakurai–Hosomi–Denmark-type allylation reaction. The chiral pyridine N-oxide in 1:1 mixture of chloroform and 1,1,2,2-tetrachloroethane produced the homoallylic alcohols in up to 98% yield and up to 94% ee.

  具有构象刚性手性骨架的吡啶单元已被设计和合成为对映体纯形式，可用于Lewis碱催化的Sakurai–Hosomi–Denmark型烯丙基化反应。在氯仿和1,1,2,2-四氯乙烷1：1混合物中的手性吡啶N-氧化物生成的均烯丙基醇的收率高达98％，ee高达94％。