(4-溴苯基)(2-甲基苯基)甲酮 | 27428-59-7

• 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-溴苯基)(2-甲基苯基)甲酮
• 英文名称: (4-bromophenyl)(o-tolyl)methanone
• 英文别名: 4'-Brom-2-methyl-benzophenon；4-Bromo-2'-methylbenzophenone；(4-bromophenyl)-(2-methylphenyl)methanone
• CAS: 27428-59-7
• 化学式: C₁₄H₁₁BrO
• 分子量: 275.145
• InChiKey: POHRRVPQMJGTKX-UHFFFAOYSA-N

物化性质

• 沸点：
  155 °C(Press: 0.1 Torr)
• 密度：
  1.375±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2914700090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-Bromo-2’-methylbenzophenone
Synonyms: (4-Bromophenyl)(2-methylphenyl)methanone

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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-Bromo-2’-methylbenzophenone
CAS number: 27428-59-7

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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: C14H11BrO
Molecular weight: 275.1

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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, 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：

  (4-溴苯基)(2-甲基苯基)甲酮 在 methyl (S)-2-amino-3,3-diphenylpropanoate 、 溶剂黄146 、 potassium hydroxide 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 36.0h， 生成 (S)-9-(4-bromophenyl)-3,4,4a,10-tetrahydroanthracen-1(2H)-one
  参考文献：
  名称：

  手性氨基酸酯催化光生成的邻喹啉甲烷的对映选择性迈克尔加成反应

  摘要：

  描述了光激发的胺催化的方法的第一实例，该方法用于将邻喹啉二甲烷不对称地迈克尔加成成烯酮。在简单的手性氨基酸酯的存在下，通常以高收率和优异的立体选择性获得各种迈克尔加成物。此策略可以成功地应用于3-取代的-2-环己烯酮，并提供对全碳四元中心的不对称进入。此外，还通过密度泛函理论（DFT）计算来解释高度立体控制。

  DOI：

  10.1021/acs.orglett.7b00862
• 作为产物：
  描述：

  邻甲苯基溴化镁 在 manganese(IV) oxide 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 10.0h， 生成 (4-溴苯基)(2-甲基苯基)甲酮
  参考文献：
  名称：

  烯醛的光驱动对映选择性有机催化β-苄基化

  摘要：

  报道了一种用于 α,β-不饱和醛直接对映选择性 β-苄基化的光化学有机催化策略。该化学利用 2-烷基-二苯甲酮的光触发烯醇化来产生羟基-邻-醌二甲烷。这些短暂的中间体被手性亚胺离子立体选择性地拦截，在仲胺催化剂与烯醛缩合时瞬时形成。密度泛函理论（DFT）研究解释了为什么反应通过非常规的迈克尔型加成流形进行，而不是经典的环加成机制和随后的开环。

  DOI：

  10.1002/anie.201612159

文献信息

• Selective Acylation of Aryl- and Heteroarylmagnesium Reagents with Esters in Continuous Flow
  作者：Benjamin Heinz、Dimitrije Djukanovic、Maximilian A. Ganiek、Benjamin Martin、Berthold Schenkel、Paul Knochel

  DOI：10.1021/acs.orglett.9b04254

  日期：2020.1.17

  A selective acylation of readily accessible organomagnesium reagents with commercially available esters proceeds at convenient temperatures and short residence times in continuous flow. Flow conditions allow us to prevent premature collapse of the hemiacetal intermediates despite noncryogenic conditions, thus furnishing ketones in good yields. Throughout, the coordinating ability of the ester and/or

  易于获得的有机镁试剂与市售酯的选择性酰化反应可在方便的温度下以较短的停留时间连续进行。流动条件使我们能够防止半缩醛中间体过早坍塌，尽管非低温条件也是如此，因此可以提供高收率的酮。整个过程中，酯和/或格利雅（Grignard）的配位能力对于反应结果至关重要。通过使用2-羟基酯衍生物作为底物获得几种双芳基酮来利用这一点。
• Chiral Electron-Rich PNP Ligand with a Phospholane Motif: Structural Features and Application in Asymmetric Hydrogenation
  作者：Heng Wang、Yao Zhang、Tilong Yang、Xiaochong Guo、Quan Gong、Jialin Wen、Xumu Zhang

  DOI：10.1021/acs.orglett.0c03159

  日期：2020.11.20

  catalysts with a PNP type ligand, the electron-rich chiral PNP ligands have still been rarely reported because of the difficulties in synthesis and the nature of air-sensitivity. Herein, we report a novel chiral PNP ligand (Heng-PNP) with both a rigid backbone and a bulky tert-butyl group on the phospholane motif. We successfully obtained its divalent iron complex. The chiral environment of its Ir(III) complex

  尽管通过一系列具有PNP型配体的过渡金属催化剂实现了显着的反应性，但由于合成困难和对空气敏感的性质，富电子手性PNP配体仍然很少报道。在本文中，我们报道了一种新颖的手性PNP配体（Heng-PNP），其磷骨架上具有刚性骨架和庞大的叔丁基。我们成功获得了其二价铁配合物。还通过象限分析讨论了其Ir（III）配合物的手性环境。该三齿配体用于挑战性二芳基酮的铱催化不对称氢化反应：ee最高可达98％达到500吨。计算研究表明，底物中共轭芳基的扭曲（由Ir / Heng-PNP络合物的特殊手性口袋诱导）导致对映体确定步骤中的能量差。
• Enantioselective Organocatalytic Diels-Alder Trapping of Photochemically Generated Hydroxy-<i>o</i> -Quinodimethanes
  作者：Luca Dell'Amico、Alberto Vega-Peñaloza、Sara Cuadros、Paolo Melchiorre

  DOI：10.1002/anie.201509472

  日期：2016.3.1

  generated hydroxy‐o‐quinodimethanes with high stereoselectivity. We used a chiral organic catalyst, derived from natural cinchona alkaloids, to activate maleimides toward highly stereoselective Diels–Alder reactions. An unconventional mechanism of stereocontrol is operative, wherein the organocatalyst is actively involved in both the photochemical pathway, by leveraging the formation of the reactive photoenol

  光化/ Diels-Alder策略可直接获得具有合成价值的苯环化碳环产品。这个历史悠久的光触发过程从未屈服于开发对映选择性催化方法的努力。本文中，我们证明了不对称有机催化如何提供简单而有效的催化工具来拦截光化学生成的羟基邻苯二酚。具有高立体选择性的喹啉甲烷。我们使用了衍生自天然金鸡纳生物碱的手性有机催化剂，将马来酰亚胺活化为高度立体选择性的Diels-Alder反应。一种非常规的立体控制机制是有效的，其中有机催化剂通过利用反应性光烯醇的形成和立体选择性定义事件而积极地参与了光化学途径。
• Forging Fluorine-Containing Quaternary Stereocenters by a Light-Driven Organocatalytic Aldol Desymmetrization Process
  作者：Sara Cuadros、Luca Dell'Amico、Paolo Melchiorre

  DOI：10.1002/anie.201706763

  日期：2017.9.18

  2-fluoro-substituted cyclopentane-1,3-diketones (1) leads to the stereoselective construction of valuable fluorine-containing quaternary stereocenters. The chemistry exploits the ability of a readily available amido-thiourea catalyst to selectively activate one of the enantiotopic carbonyl groups within 1 and promote an intermolecular aldol reaction of hydroxy-o-quinodimethanes, which are photochemically

  破坏对称！非手性2-氟取代的环戊烷-1,3-二酮（1）的去对称化导致有价值的含氟季立体中心的立体选择性结构。化学利用了容易得到的酰氨基-硫脲催化剂，以选择性地激活内的对映羰基中的一个的能力1和促进的羟基的分子间醇醛缩合反应ø -quinodimethanes，其光化学从生成2。
• Light-Triggered Enantioselective Organocatalytic Mannich-Type Reaction
  作者：Paolo Melchiorre、Hamish Hepburn、Giandomenico Magagnano

  DOI：10.1055/s-0036-1588606

  日期：——

  Abstract Disclosed herein is a photochemical organocatalytic strategy for the direct enantioselective Mannich-type reaction of 2-alkylbenzophenones and cyclic imines. The chemistry exploits the light-triggered enolization of 2-alkylbenzophenones to generate transient hydroxy-o-quinodimethanes. These fleeting intermediates can be stereoselectively intercepted by imines upon activation with a chiral organic

  献给教授迪特尔·恩德斯在他70之际个生日 抽象的 本文公开了用于2-烷基二苯甲酮和环状亚胺的直接对映选择性曼尼希型反应的光化学有机催化策略。化学方法利用了光引发的2-烷基二苯甲酮的烯醇化作用，生成了瞬态的羟基-邻-喹二甲烷。这些短暂的中间体可以在衍生自天然金鸡纳生物碱的手性有机催化剂活化后被亚胺立体选择性地拦截。所开发的方法使用温和的条件，简单的照明源以及易于获得的底物和催化剂，从而提供了对映体富集的手性胺，很难通过其他方法合成。 本文公开了用于2-烷基二苯甲酮和环状亚胺的直接对映选择性曼尼希型反应的光化学有机催化策略。化学方法利用了光引发的2-烷基二苯甲酮的烯醇化作用，生成了瞬态的羟基-邻-喹二甲烷。这些短暂的中间体可以在衍生自天然金鸡纳生物碱的手性有机催化剂活化后被亚胺立体选择性地拦截。所开发的方法使用温和的条件，简单的照明源以及易于获得的底物和催化剂，从而提供了对映体富集的手性胺，很难通过其他方法合成。