3,4-二溴苯硼酸频那醇酯 | 1075719-78-6

• 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: 3,4-二溴苯硼酸频那醇酯
• 中文别名: 3,4-二溴苯硼酸频哪醇酯
• 英文名称: 2-(3,4-dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS: 1075719-78-6
• 化学式: C₁₂H₁₅BBr₂O₂
• 分子量: 361.869
• InChiKey: SVTLSECRLPPTTC-UHFFFAOYSA-N

物化性质

• 溶解度：
  可溶于二氯甲烷；乙酸乙酯;四氢呋喃

计算性质

• 辛醇/水分配系数(LogP)：
  3.51
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 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,P264,P271,P280,P302+P352,P304+P340+P312,P305+P351+P338,P332+P313,P337+P313,P362,P403+P233,P405,P501
• 危险性描述：
  H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3,4-Dibromophenylboronic acid, pinacol ester
Synonyms: 2-(3,4-Dibromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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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: 3,4-Dibromophenylboronic acid, pinacol ester
CAS number: 1075719-78-6

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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: C12H15BBr2O2
Molecular weight: 361.9

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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, hydrogen bromide.

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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：

  3,4-二溴苯硼酸频那醇酯 在 copper diacetate 、 三乙胺 、 sodium nitrite 作用下， 以 乙腈 为溶剂， 反应 12.0h， 以0.193 g的产率得到1,2-二溴-4-硝基苯
  参考文献：
  名称：

  带有芳基化的芳烃的邻位/对位导向基团的亚硝化

  摘要：

  在本文中，我们报道了荟萃芳烃的-nitration轴承邻/对位用铱催化的C-H硼化反应之后是新开发的铜（II）粗频哪醇的芳基硼酸酯入的催化的变换引导组（多个）以一锅的方式对应的硝基芳烃。该协议允许的合成元-nitrated芳烃是乏味来制备或使用现有的方法需要多步合成。该反应可耐受多种邻位/对位导向基团，例如-F，-Cl，-Br，-CH 3，-Et，-i Pr -OCH 3和-OCF 3。它还提供对π电子缺陷杂环的硝基衍生物（例如吡啶和喹啉衍生物）的区域选择性访问。该方法的应用在复杂分子的后期修饰中以及在以克级制备到FDA批准的药物Nilotinib途中的中间体中得到了证明。最后，我们证明了通过该策略获得的硝基产物也可以通过Baran的胺化方案直接转化为苯胺或受阻胺。

  DOI：

  10.1002/chem.201901633
• 作为产物：
  描述：

  3,4-二溴苯胺 在 tetrafluoroboric acid 、 异丙基氯化镁 、 potassium iodide 、 sodium nitrite 作用下， 以 四氢呋喃 、 水 、 丙酮 为溶剂， 反应 4.0h， 生成 3,4-二溴苯硼酸频那醇酯
  参考文献：
  名称：

  提供获得具有合成价值的 1,2-二溴苯的高效互补方法

  摘要：

  1,2-二溴苯是各种有机转化的非常有价值的前体，特别是基于苄基中间体形成的反应。本报告描述了基于区域选择性溴化、邻位金属化和卤素/金属置换合成各种衍生物的短序列。1,2-二溴-3-碘苯 (2f)、1,2-二溴-4-碘苯 (4c) 和 2,3-二溴-1,4-二碘苯 (5e) 在这些合成中用作中间体。

  DOI：

  10.1002/ejoc.201001217

文献信息

• Sterically controlled C–H/C–H homocoupling of arenes <i>via</i> C–H borylation
  作者：Xiaocong Pei、Guan Zhou、Xuejing Li、Yuchen Xu、Resmi C. Panicker、Rajavel Srinivasan

  DOI：10.1039/c9ob00995g

  日期：——

  A mild one-pot protocol for the synthesis of symmetrical biaryls by sequential Ir-catalyzed C-H borylation and Cu-catalyzed homocoupling of arenes is described. The regiochemistry of the biaryl formed is sterically controlled as dictated by the C-H borylation step. The methodology is also successfully extended to heteroarenes. Some of the products obtained by this approach are impossible to obtain

  描述了一种温和的一锅法方案，该方案通过顺序的Ir催化的CH硼酸酯化和Cu催化的芳烃均偶联合成对称的联芳基。所形成的联芳基的区域化学空间上受CH硼酸酯化步骤的控制。该方法还成功地扩展到了杂芳烃。通过这种方法获得的某些产品无法通过Ullmann或Suzuki耦合协议获得。最后，我们显示了一锅序列描述了CH硼化/ Cu催化的均偶联/ Pd催化的Suzuki偶联以获得π扩展的芳烃骨架。
• NNB-Type Tridentate Boryl Ligands Enabling a Highly Active Iridium Catalyst for C–H Borylation
  作者：Siyi Ding、Linghua Wang、Zongcheng Miao、Pengfei Li

  DOI：10.3390/molecules24071434

  日期：——

  Boryl ligands play a very important role in catalysis because of their very high electron-donating property. In this paper, NNB-type boryl anions were designed as tridentate ligands to promote aryl C–H borylation. In combination with [IrCl(COD)]2, they generate a highly active catalyst for a broad range of (hetero)arene substrates, including highly electron-rich and/or sterically hindered ones. This

  硼基配体由于其非常高的给电子性质，在催化中起着非常重要的作用。在本文中，NNB 型硼酸阴离子被设计为三齿配体以促进芳基 C-H 硼酸化。与 [IrCl(COD)]2 结合，它们为广泛的（杂）芳烃底物产生高活性催化剂，包括高度富电子和/或空间位阻的底物。这项工作提供了一种新的 NNB 型三齿硼基配体来支持均相有机金属催化。
• Double N,B-Type Bidentate Boryl Ligands Enabling a Highly Active Iridium Catalyst for C–H Borylation
  作者：Guanghui Wang、Liang Xu、Pengfei Li

  DOI：10.1021/jacs.5b05252

  日期：2015.7.1

  promise in catalysis due to their very high electron-donating property. In this communication double N,B-type boryl anions were designed as bidentate ligands to promote an sp(2) C-H borylation reaction. A symmetric pyridine-containing tetraaminodiborane(4) compound (1) was readily prepared as the ligand precursor that could be used, in combination with [Ir(OMe)(COD)]2, to in situ generate a highly active

  硼酸配体由于其非常高的给电子特性而在催化中具有前景。在此通信中，双 N、B 型硼酸阴离子被设计为双齿配体以促进 sp(2) CH 硼酸化反应。含有对称吡啶的四氨基二硼烷 (4) 化合物 (1) 很容易制备为配体前体，可与 [Ir(OMe)(COD)]2 结合使用，原位生成高活性催化剂，用于广泛的应用。一系列（杂）芳烃底物，包括高度富电子和/或空间位阻的底物。这项工作提供了支持均相有机金属催化的双齿硼基配体的第一个例子。
• Iridium-Catalyzed Preparation of Silylboranes by Silane Borylation and Their Use in the Catalytic Borylation of Arenes
  作者：Timothy A. Boebel、John F. Hartwig

  DOI：10.1021/om800696d

  日期：2008.11.24

  Silylboranes are versatile reagents for transition metal-catalyzed reactions of unsaturated organic molecules. These reagents are typically prepared by the addition of a silyl lithium species to a boron electrophile. However, the need to generate anionic silane reagents limits the scope of silylboranes that can be readily obtained. Here, we describe the synthesis of trialkylsilylboranes by the borylation

  甲硅烷基硼烷是用于不饱和有机分子的过渡金属催化反应的通用试剂。这些试剂通常通过将甲硅烷基锂物质添加到亲电硼中来制备。但是，产生阴离子硅烷试剂的需要限制了容易获得的甲硅烷基硼烷的范围。在这里，我们描述了通过铱配合物催化的硅烷的硼化来合成三烷基甲硅烷基硼烷。[Ir（OMe）cod] 2和4,4'-二酯的结合催化三烷基氢硅烷与B 2 pin 2的反应-丁基联吡啶形成三烷基甲硅烷基硼酸酯。此外，我们表明这些三烷基甲硅烷基硼烷可作为铱催化的芳基CH键的硼化反应的硼源。与二硼试剂不同，甲硅烷基硼烷在芳基和甲基CH键上均与甲基芳烃反应。
• A General Strategy for the Perfluoroalkylation of Arenes and Arylbromides by Using Arylboronate Esters and [(phen)CuRF]
  作者：Nichole D. Litvinas、Patrick S. Fier、John F. Hartwig

  DOI：10.1002/anie.201106668

  日期：2012.1.9

  method for the synthesis of aryl perfluoroalkanes from arenes and aryl bromides is described. Substituted arenes or aryl bromides are converted in situ to an aryl boronate ester that readily undergoes perfluoroalkylation in air with [(phen)CuRF]. A broad range of aryl bromide substrates were perfluoroalkylated in good yield for the first time. [(phen)CuCF3] is now commercially available and has been prepared

  描述了一种从芳烃和芳基溴化物合成芳基全氟烷烃的通用方法。取代的芳烃或芳基溴化物在原位转化为芳基硼酸酯，该芳基硼酸酯易于在空气中与 [(phen)CuR F ]进行全氟烷基化。广泛的芳基溴底物首次以良好的产率全氟烷基化。[(phen)CuCF 3 ] 现在可商购并已以 20 g 的规模制备。