4-叔丁基苯硼酸频那醇酯 | 214360-66-4

• 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-叔丁基苯硼酸频那醇酯
• 英文名称: 2-(4-tert-butylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• 英文别名: 4-tert-butylphenylboronic acid pinacol ester；4-t-butylphenylboronic acid pinacol ester；2-(4-(tert-Butyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS: 214360-66-4
• 化学式: C₁₆H₂₅BO₂
• 分子量: 260.184
• InChiKey: SAWJXFQIAPLBEA-UHFFFAOYSA-N

物化性质

• 熔点：
  139.9-140.9 °C
• 沸点：
  333.6±21.0 °C(Predicted)
• 密度：
  0.96±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.28
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.62
• 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
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  2-8℃

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-t-Butylphenylboronic acid, pinacol ester
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
May cause long lasting harmful effects to aquatic life
H413:

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Section 3. Composition/information on ingredients.
Ingredient name: 4-t-Butylphenylboronic acid, pinacol ester
CAS number: 214360-66-4

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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.
Storage: Store in closed vessels, refrigerated.

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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
No data
Boiling point:
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C16H25BO2
Molecular weight: 260.2

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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-叔丁基苯硼酸频那醇酯 在 sodium perborate tetrahydrate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 1.0h， 以53.9 mg的产率得到4-叔丁基苯酚
  参考文献：
  名称：

  铜电荷转移催化使（杂）芳基酸脱羧硼化和交叉偶联

  摘要：

  我们报告了一种用于芳基硼酸酯合成的铜催化策略，该策略利用光诱导配体到金属电荷转移 (LMCT) 将（杂）芳基酸转化为适合环境温度硼化的芳基自由基。这种近紫外过程在温和条件下发生，不需要对天然酸进行预功能化，并且广泛适用于各种芳基、杂芳基和药物底物。我们还报告了一种用于脱羧交叉偶联的一锅程序，该程序将催化 LMCT 硼酸化和钯催化的 Suzuki-Miyaura 芳基化、乙烯基化或与有机溴化物的烷基化结合起来，以获得一系列增值产品。通过开发异选择性双脱羧 C(sp 2 )–C(sp 2）偶联序列，铜催化的两种不同酸（包括药物底物）的 LMCT 硼化和卤化过程与随后的 Suzuki-Miyaura 交叉偶联配对。

  DOI：

  10.1021/jacs.2c01630
• 作为产物：
  描述：

  对叔丁基苄硫醇 在 吡啶 作用下， 以 水 、 1,2-二氯乙烷 、 丙酮 为溶剂， 反应 24.0h， 生成 4-叔丁基苯硼酸频那醇酯
  参考文献：
  名称：

  通过光激活的CS活化，芳基S盐的氧化还原中性硼化反应。

  摘要：

  本文报道了一种使用双（频哪醇）二硼作为硼源进行芳基sulf盐的硼化的新光诱导策略。该方法利用氧化还原中性芳基sulf在无过渡金属条件下进行光激发时通过CS键活化来获得芳基自由基。因此，它可从容易获得的芳基sulf获得具有良好性能的各种芳基硼酸酯，并伴有温和的条件，操作简便和易于扩展。

  DOI：

  10.1021/acs.orglett.9b03850

文献信息

• Catalytic Transfer Hydrogenation of Arenes and Heteroarenes
  作者：Coralie Gelis、Arne Heusler、Zackaria Nairoukh、Frank Glorius

  DOI：10.1002/chem.202002777

  日期：2020.11.6

  Transfer hydrogenation reactions are of great interest to reduce diverse molecules under mild reaction conditions. To date, this type of reaction has only been successfully applied to alkenes, alkynes and polarized unsaturated compounds such as ketones, imines, pyridines, etc. The reduction of benzene derivatives by transfer hydrogenation has never been described, which is likely due to the high energy

  转移氢化反应对于在温和的反应条件下还原各种分子非常重要。迄今为止，这种类型的反应仅成功地用于烯烃，炔烃和极化的不饱和化合物，例如酮，亚胺，吡啶等。从未描述过通过转移氢化还原苯衍生物的方法，这很可能是由于高使这些化合物脱芳香化所需的能量屏障。在此背景下，我们开发了一种催化转移氢化反应，用于还原苯衍生物和杂芳烃，从而在不需要压缩氢气的情况下，在室温下形成带有各种官能团的复杂三维支架。
• 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。
• Visible Light-Induced Borylation of C–O, C–N, and C–X Bonds
  作者：Shengfei Jin、Hang. T. Dang、Graham C. Haug、Ru He、Viet D. Nguyen、Vu T. Nguyen、Hadi D. Arman、Kirk S. Schanze、Oleg V. Larionov

  DOI：10.1021/jacs.9b12519

  日期：2020.1.22

  photocatalytic borylation method that can effect borylation of a wide range of substrates, including strong C‒O bonds, remains elusive. Herein, we report a general, metal-free visible light-induced photocatalytic borylation platform that enables borylation of electron rich derivatives of phenols and anilines, chloroarenes, as well as other haloarenes. The reac-tion exhibits excellent functional group

  硼酸是中心重要的功能基序和合成前体。可见光诱导的硼酸化可以提供结构多样化的硼酸盐，但一种广泛有效的光催化硼酸化方法可以影响包括强 C-O 键在内的多种底物的硼化，仍然难以实现。在此，我们报告了一种通用的、无金属的可见光诱导光催化硼化平台，该平台能够对苯酚和苯胺、氯芳烃以及其他卤代芳烃的富电子衍生物进行硼化。该反应表现出优异的官能团耐受性，正如一系列结构复杂底物的硼化反应所证明的那样。值得注意的是，该反应是由吩噻嗪催化的，这是一种简单的有机光催化剂，MW< 200通过质子耦合电子转移机制介导了以前无法实现的可见光诱导的苯酚衍生物单电子还原，还原电位为~-3 V vs SCE。机理研究指出了光催化剂-碱相互作用的关键作用。
• Identification and structure activity relationship of novel flavone derivatives that inhibit the production of nitric oxide and PGE 2 in LPS-induced RAW 264.7 cells
  作者：Ji-Young An、Hwi-Ho Lee、Ji-Sun Shin、Hyung-Seok Yoo、Jong Seon Park、Seung Hwan Son、Sang Won Kim、Jihyun Yu、Jun Lee、Kyung-Tae Lee、Nam-Jung Kim

  DOI：10.1016/j.bmcl.2017.03.057

  日期：2017.6

  In an effort to identify novel anti-inflammatory compounds, a series of flavone derivatives were synthesized and biologically evaluated for their inhibitory effects on the production of nitric oxide (NO) and prostaglandin E2 (PGE2), representative pro-inflammatory mediators, in LPS-induced RAW 264.7 cells. Their structure-activity relationship was also investigated. In particular, we found that compound

  为了鉴定新型抗炎化合物，合成了一系列黄酮衍生物，并对其在LPS-中对代表性的促炎性介质一氧化氮（NO）和前列腺素E2（PGE2）产生的抑制作用进行了生物学评估。诱导的RAW 264.7细胞。还研究了它们的构效关系。尤其是，我们发现与木犀草素（一种被称为强效抗炎剂的天然黄酮）相比，化合物3g对PGE2的产生显示出更强的抑制活性，对NO生成具有类似的抑制活性，并且细胞毒性也较弱。