2-(2-溴苯基)-4,4,5,5-四甲基-1,3,2-二杂氧戊硼烷 | 269410-06-2

• 物质功能分类: 化学试剂 - 有机试剂 - 硼烷
• 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: 2-(2-溴苯基)-4,4,5,5-四甲基-1,3,2-二杂氧戊硼烷
• 中文别名: 2-溴苯硼酸频哪醇酯；2-(2-溴苯基)-4,4,5,5-甲基-1,3,2-二杂氧戊硼烷；1-溴-2-(4,4,5,5-四甲基-1,3,2-二氧硼戊环-2-基)苯；2-溴苯基硼酸频哪醇酯
• 英文名称: 2-(2-bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• 英文别名: 2-bromophenylboronic acid pinacol ester
• CAS: 269410-06-2
• 化学式: C₁₂H₁₆BBrO₂
• 分子量: 282.973
• InChiKey: BQVWGVYJHSRHSD-UHFFFAOYSA-N

物化性质

• 沸点：
  332.4±25.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.75
• 重原子数：
  16
• 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,P305+P351+P338,P312,P332+P313,P337+P313,P362,P403+P233,P405,P501
• 危险性描述：
  H315,H319,H335
• 储存条件：
  存放于惰性气体中，并避免接触湿气（否则可能分解）。

SDS

2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2- Revision number: 1
dioxaborolane
SAFETY DATA SHEET

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Section 1. BASE INFORMATION
Product name: 2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Revision number: 1

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Section 2. HAZARDS IDENTIFICATION
Classification of the GHS
Not classified
PHYSICAL HAZARDS
HEALTH HAZARDS Not classified
Not classified
ENVIRONMENTAL HAZARDS
GHS label elements
None
Pictograms or hazard symbols
Signal word No signal word
Hazard statement None
Precautionary statements None

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture: Substance
2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Component(s):
Percent: >97.0%(T)
269410-06-2
CAS Number:
Synonyms: 1-Bromo-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene , 2-
Bromophenylboronic Acid Pinacol Ester
Chemical Formula: C12H16BBrO2

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Section 4. FIRST AID MEASURES
Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
Skin contact: Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact: Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Get medical advice/attention if you feel unwell. Rinse mouth.
Ingestion:
Protection of first-aiders: A rescuer should wear personal protective equipment, such as rubber gloves and air-
tight goggles.

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Section 5. FIRE-FIGHTING MEASURES
Dry chemical, foam, water spray, carbon dioxide.
Suitable extinguishing
media:
Take care as it may decompose upon combustion or in high temperatures to
Specific hazards:
generate poisonous fume.
2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-
dioxaborolane

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Section 5. FIRE-FIGHTING MEASURES
Specific methods: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protective When extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

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Section 6. ACCIDENTAL RELEASE MEASURES
Use personal protective equipment. Keep people away from and upwind of spill/leak.
Personal precautions,
protective equipment and Ensure adequate ventilation. Entry to non-involved personnel should be controlled
emergency procedures: around the leakage area by roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Absorb spilled material in a suitable absorbent (e.g. rag, dry sand, earth, saw-dust).
containment and cleaning In case of large amount of spillage, contain a spill by bunding. Adhered or collected
up: material should be promptly disposed of, in accordance with appropriate laws and
regulations.

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Section 7. HANDLING AND STORAGE
Handling
Technical measures: Handling is performed in a well ventilated place. Wear suitable protective equipment.
Prevent generation of vapor or mist. Wash hands and face thoroughly after handling.
Use a ventilation, local exhaust if vapor or aerosol will be generated.
Advice on safe handling: Avoid contact with skin, eyes and clothing.
Storage
Keep container tightly closed. Store in a cool and dark place.
Storage conditions:
Store under inert gas.
Protect from moisture.
Store away from incompatible materials such as oxidizing agents.
Packaging material: Law is followed.

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Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls: Install a closed system or local exhaust as possible so that workers should not be
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Vapor respirator. Follow local and national regulations.
Hand protection: Protective gloves.
Eye protection: Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state (20°C): Liquid
Form: clear
Color: Colorless - Yellow
Odor: No data available
pH: No data available
Melting point/freezing point:No data available
Boiling Point/Range: No data available
Flash Point: No data available
Explosive limits
Lower: No data available
Upper: No data available
Density: No data available
Solubility: No data available
2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-
dioxaborolane

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Section 10. STABILITY AND REACTIVITY
Stability: Stable under proper conditions.
Reactivity: No special reactivity has been reported.
Conditions to avoid: Moisture-sensitive
Incompartible materials: oxidizing agents
Hazardous Decomposition Carbon monoxide, Carbon dioxide, Boron oxides , Hydrogen bromide
Products:

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Section 11. TOXICOLOGICAL INFORMATION
No data available
Acute Toxicity:
Skin corrosion/irritation: No data available
No data available
Serious eye
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
No data available
IARC =
NTP = No data available
No data available
Reproductive toxicity:

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Section 12. ECOLOGICAL INFORMATION
Ecotoxicity:
Fish: No data available
Crustacea: No data available
Algae: No data available
Persistence / degradability: No data available
Bioaccumulative No data available
potential(BCF):
Mobillity in soil
log Pow: No data available
Soil adsorption (Koc): No data available
Henry's Law No data available
constant(PaM3/mol):

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Section 13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. You may be able to burn in a chemical
incinerator equipped with an afterburner and scrubber system. Observe all federal, state and local regulations when
disposing of the substance.

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Section 14. TRANSPORT INFORMATION
Hazards Class: Does not correspond to the classification standard of the United Nations
UN-No: Not Listed

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Section 15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26,
2002): Safe use and production, the storage of a dangerous chemical, transport, loading and unloading were
prescribed.
2-(2-Bromophenyl)-4,4,5,5-tetramethyl-1,3,2-
dioxaborolane

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2-(2-溴苯基)-4,4,5,5-四甲基-1,3,2-二杂氧戊硼烷 在 potassium tert-butylate 、 双(2-二苯基磷苯基)醚 、 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 作用下， 以 甲苯 为溶剂， 反应 16.0h， 以78%的产率得到9,10-苯并菲
  参考文献：
  名称：

  2-溴苯基硼酸酯作为苯并前体在钯催化的联苯撑合成中的应用

  摘要：

  引入邻取代的硼酸芳基酯作为芳烃前体，用于过渡金属催化的转化。用t BuOK和Pd（0）处理后，形成了金属结合的芳烃中间体，该中间体经过有效的三聚形成有用的三亚苯基化合物。对于间位取代的芳烃，有利于非C 3对称材料的3：1的产物比率表明了苯并炔机理。

  DOI：

  10.1021/ol5006246
• 作为产物：
  描述：

  1,2-二溴苯 在 盐酸 、 正丁基锂 、 硼酸三异丙酯 作用下， 以 四氢呋喃 、 正己烷 、 甲苯 为溶剂， 反应 4.58h， 生成 2-(2-溴苯基)-4,4,5,5-四甲基-1,3,2-二杂氧戊硼烷
  参考文献：
  名称：

  用于 Suzuki-Miyaura 反应的易于获得的 2-(2-Bromophenyl)-4,4,5,5-Tetramethyl-[1,3,2]Dioxaborolane

  摘要：

  开发了一种简单直接的方法，用于从 1,2-二溴苯制备标题化合物。该化合物与取代的溴芳基化合物的 Suzuki-Miyaura 反应顺利进行，以中等至优异的产率得到 2-溴联苯衍生物。该方案的优点是取代溴芳基化合物直接用于与标题化合物偶联，而不是将每种溴芳基化合物转化为相应的芳基金属，然后与 2-碘溴苯反应。

  DOI：

  10.1002/jccs.200700118

文献信息

• Radical Metal-Free Borylation of Aryl Iodides
  作者：Sandra Pinet、Mathieu Pucheault、Virginie Liautard、Mégane Debiais

  DOI：10.1055/s-0036-1588431

  日期：2017.11

  radicals, generated in situ. A simple metal-free borylation of aryl iodides mediated by a fluoride sp2–sp3 diboron adduct is described. The reaction conditions are compatible with various functional groups. Electronic effects of substituents do not affect the borylation while steric hindrance does. The reaction proceeds via a radical mechanism in which pyridine serves to stabilize the boryl radicals, generated

  作为合成中硼化的现代策略特别主题的一部分发布 抽象的 描述了由氟化物sp 2 –sp 3二硼加合物介导的简单的无金属碘化芳基碘化物。反应条件与各种官能团相容。取代基的电子效应不会影响硼酸酯化，而空间位阻会影响硼化。该反应通过自由基机理进行，其中吡啶用于稳定原位产生的硼烷基。 描述了由氟化物sp 2 –sp 3二硼加合物介导的简单的无金属碘化芳基碘化物。反应条件与各种官能团相容。取代基的电子效应不会影响硼酸酯化，而空间位阻会影响硼化。该反应通过自由基机理进行，其中吡啶用于稳定原位产生的硼烷基。
• Chemoselective Rhodium-Catalyzed Borylation of Bromoiodoarenes Under Mild Conditions
  作者：Anthony J. Varni、Michael V. Bautista、Kevin J.T. Noonan

  DOI：10.1021/acs.joc.0c00178

  日期：2020.5.15

  developed for the preparation of aryl boronate esters. The reaction proceeds under mild conditions with excellent selectivity for C-I bonds in bromoiodoarenes and exhibits broad functional group tolerance. This procedure can act as a complementary approach toward bifunctional arenes along with other metal-catalyzed borylations. Additionally, the reaction's utility in the preparation of monomers for metal-catalyzed

  已经开发了化学选择性的铑催化的硼化来制备芳基硼酸酯。该反应在温和的条件下进行，对溴代碘代芳烃中的CI键具有出色的选择性，并且具有宽泛的官能团耐受性。该方法可以作为双官能团与其他金属催化的硼烷基化反应的补充方法。另外，证明了该反应在制备用于金属催化的交叉偶联聚合的单体中的效用。
• Palladium(I) Dimer Enabled Extremely Rapid and Chemoselective Alkylation of Aryl Bromides over Triflates and Chlorides in Air
  作者：Indrek Kalvet、Theresa Sperger、Thomas Scattolin、Guillaume Magnin、Franziska Schoenebeck

  DOI：10.1002/anie.201701691

  日期：2017.6.12

  Disclosed herein is the first general chemo- and site-selective alkylation of C-Br bonds in the presence of COTf, C-Cl and other potentially reactive functional groups, using the air-, moisture-, and thermally stable dinuclear PdI catalyst, [Pd(μ-I)PtBu3 ]2 . The bromo-selectivity is independent of the substrate and the relative positioning of the competing reaction sites, and as such fully predictable

  本文公开的是在 COTf、C-Cl 和其他潜在反应性官能团存在下，使用空气稳定、水分稳定和热稳定的双核 PdI 催化剂，对 C-Br 键进行第一个常规化学和位点选择性烷基化，[ Pd(μ-I)PtBu3]2 。溴选择性与底物和竞争反应位点的相对位置无关，因此完全可预测。在室温和开瓶反应条件下以极高的速度（<5 分钟反应时间）引入伯烷基链和仲烷基链。
• Structurally Diverse π‐Extended Conjugated Polycarbo‐ and Heterocycles through Pd‐Catalyzed Autotandem Cascades
  作者：Raquel Barroso、María‐Paz Cabal、Rosana Badía‐Laiño、Carlos Valdés

  DOI：10.1002/chem.201503080

  日期：2015.11.9

  The Pd‐catalyzed reaction between 2,2′‐dibromobiphenyls and related systems with tosylhydrazones gives rise to new π‐extended conjugated polycarbo‐ and heterocycles through an autotandem process involving a cross‐coupling reaction followed by an intramolecular Heck cyclization. The reaction shows wide scope regarding both coupling partners. Cyclic and acyclic tosylhydrazones can participate in the

  2,2'-二溴代二苯与相关系统与甲苯磺酰azo之间的Pd催化反应通过涉及交叉偶联反应然后进行分子内Heck环化的自动串联过程，产生了新的π-扩展的共轭聚碳环和杂环。对于两个偶合伙伴，反应显示出广泛的范围。环状和无环的甲苯磺酰can可以参与该过程。另外，已经使用了多种芳族和杂芳族二溴代衍生物，从而导致了一系列具有芴或a啶中心核并包含联萘基，噻吩，苯并噻吩和吲哚基团的多种支架。适当的四溴化系统的应用通过两个连续的串联级联反应导致了更大的结构复杂性。通过吸收和发射光谱研究了所选化合物的光物理性质。鉴定出具有非常高的量子产率的荧光分子，显示出该方法在开发具有令人感兴趣的光电特性的分子中的潜力。
• Lewis Acid–Base Interaction‐Controlled <i>ortho</i> ‐Selective C−H Borylation of Aryl Sulfides
  作者：Hong Liang Li、Yoichiro Kuninobu、Motomu Kanai

  DOI：10.1002/anie.201610041

  日期：2017.2

  iridium/bipyridine‐catalyzed ortho‐selective C−H borylation of aryl sulfides was developed. High ortho‐selectivity was achieved by a Lewis acid–base interaction between a boryl group of the ligand and a sulfur atom of the substrate. This is the first example of a catalytic and regioselective C−H transformation controlled by a Lewis acid–base interaction between a ligand and a substrate. The C−H borylation reaction

  开发了铱/联吡啶催化的芳基硫醚的邻位选择性CH硼化反应。高配位选择性是通过配体的硼基与底物的硫原子之间的路易斯酸碱相互作用实现的。这是由配体与底物之间的路易斯酸碱相互作用控制的催化和区域选择性CH转化的第一个例子。CH硼化反应可以以克为单位进行，并以生物活性分子为底物，证明了其对后期区域选择性CH硼化的适用性。一种生物活性分子是由邻硼酸盐化的产物通过将产物的硼烷基和甲硫基基团转化而合成的。