2,5-二氯苯甲酮 | 16611-67-9

• 物质功能分类: 医药中间体
• 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: 2,5-二氯苯甲酮
• 中文别名: 2,5-二氯二苯甲酮
• 英文名称: 2,5-dichlorobenzophenone
• 英文别名: (2,5-dichlorophenyl)(phenyl)methanone；(2,5-dichlorophenyl)-phenylmethanone
• CAS: 16611-67-9
• 化学式: C₁₃H₈Cl₂O
• mdl: MFCD00079746
• 分子量: 251.112
• InChiKey: FAVKIHMGRWRACA-UHFFFAOYSA-N

物化性质

• 熔点：
  87-88°C
• 沸点：
  240-260 °C
• 密度：
  1.311±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险等级：
  IRRITANT
• 安全说明：
  S26,S36/37/39
• 海关编码：
  2914700090
• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• 危险类别：
  IRRITANT
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  室温且干燥环境中保存。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,5-Dichlorobenzophenone
Synonyms:

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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: 2,5-Dichlorobenzophenone
CAS number: 16611-67-9

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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: C13H8Cl2O
Molecular weight: 251.1

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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 chloride.

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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：

  2,5-二氯苯甲酮 在 溶剂黄146 作用下， 以 乙腈 为溶剂， 反应 12.08h， 以88%的产率得到(2,5-dichlorophenyl)(phenyl)methanol
  参考文献：
  名称：

  用于酮和邻苯二甲酰亚胺电化学还原的可调系统

  摘要：

  在此，我们报告了一种高效、可调的系统，用于在室温下电化学还原酮和邻苯二甲酰亚胺，无需化学计量的外部还原剂。通过使用 NaN 3作为电解质和石墨毡作为阴极和阳极，我们能够通过明智地选择溶剂和酸性添加剂，将基材的羰基选择性地还原为醇、频哪醇或亚甲基。反应条件与多种官能团兼容，邻苯二甲酰亚胺可以进行一锅还原环化反应，得到带有吲哚里西啶支架的产物。机理研究表明，反应涉及电子、质子和氢原子的转移。重要的是，N 3 /HN 3 循环作为氢原子穿梭运行，这对于将羰基还原为亚甲基至关重要。

  DOI：

  10.1002/cjoc.202100508
• 作为产物：
  描述：

  2,5-二氯苯甲酸 在 吡啶 、 iron(III) chloride 、 三聚氯氰 作用下， 以 二氯甲烷 为溶剂， 反应 0.58h， 生成 2,5-二氯苯甲酮
  参考文献：
  名称：

  Synthesis of (2-chlorophenyl)(phenyl)methanones and 2-(2-chlorophenyl)-1-phenylethanones by Friedel–Crafts acylation of 2-chlorobenzoic acids and 2-(2-chlorophenyl)acetic acids using microwave heating

  摘要：

  Several 2-(2-chlorophenyl)-1-phenylethanones and (2-chlorophenyl)(phenyl)methanones were prepared by the Friedel-Crafts acylation reaction of 2-(2-chlorophenyl) acetic acids and 2-chlorocarboxylic acids, respectively, in the presence of cyanuric chloride, pyridine, and AlCl(3) or FeCl(3) using microwave heating. The yields of the ketones were significantly higher than those obtained using conventional heating. In addition, similar reactions carried out with the less inexpensive and less toxic FeCl(3) gave titled ketones in comparable yields. Interestingly, the FeCl(3) catalyzed reactions gave pure ketones (no chromatographic purification required), whereas the AlCl(3) catalyzed reaction gave impure product that required chromatographic purification. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2011.03.052

文献信息

• A direct preparation of 1,4-benzodiazepines. The synthesis of medazepam and related compounds via a common intermediate
  作者：George A. Kraus、Hiroshi Maeda

  DOI：10.1016/0040-4039(94)88461-7

  日期：1994.12

  The benzodiazepine skeleton was prepared from benzoquinone in three steps. Medazepam was prepared from 9.

  苯二氮卓骨架是由苯醌分三步制备的。美沙西m是从9准备的。
• Cobalt-Catalyzed Asymmetric Hydrogenation of 1,1-Diarylethenes
  作者：Jianhui Chen、Chenhui Chen、Chonglei Ji、Zhan Lu

  DOI：10.1021/acs.orglett.6b00453

  日期：2016.4.1

  Highly enantioselective cobalt-catalyzed hydrogenation of 1,1-diarylethenes was developed by using bench-stable chiral oxazoline iminopyridine–cobalt complexes as precatalysts. A unique o-chloride effect was observed to achieve high enantioselectivity. Easy removal as well as further transformations of the chloro group make this protocol a potentially useful alternative to synthesize various chiral

  通过使用稳定的手性恶唑啉亚氨基吡啶-钴络合物作为前催化剂，开发了对映体选择性高的钴催化的1,1-二芳烃的氢化反应。观察到独特的邻氯化物效应实现了高对映选择性。易于除去以及氯基团的进一步转化使该方案成为合成各种手性1,1-二芳基乙烷的潜在有用替代品。此过程可以在室温下1克大气压的氢气中以克为单位成功进行。
• Highly Enantioselective Cobalt-Catalyzed Hydroboration of Diaryl Ketones
  作者：Wenbo Liu、Jun Guo、Shipei Xing、Zhan Lu

  DOI：10.1021/acs.orglett.0c00293

  日期：2020.4.3

  A highly enantioselective cobalt-catalyzed hydroboration of diaryl ketones with pinacolborane was developed using chiral imidazole iminopyridine as a ligand to access chiral benzhydrols in good to excellent yields and ee. This protocol could be carried out in a gram scale under mild reaction conditions with good functional group tolerance. Chiral biologically active 3-substituted phthalide and (S)-neobenodine

  使用手性咪唑亚氨基吡啶作为配体开发了对映体选择性高的钴催化的二芳基酮与二萘甲硼烷硼氢化的硼酸酯，以良好的产率和高的ee收率获得手性苯二酚。该方案可以在温和的反应条件下以克量级进行，并具有良好的官能团耐受性。手性生物活性3-取代的邻苯二甲酸酯和（S）-neobenodine可以很容易地通过不对称氢硼化来构建，这是关键步骤。
• Preparation of 2,5-dichlorobenzophenones
  申请人：Maxdem Incorporated

  公开号：US05210313A1

  公开（公告）日：1993-05-11

  A method for preparing isomerically pure 2,5-dichlorobenzophenones in good to high yields is provided. The invention comprises Friedel-Crafts aroylation of 1,4-dichlorobenzene using an aroyl halide or aromatic anhydride and at least one Lewis acid, the latter being present in an amount of at least about 1.1 mole per mole of aroyl halide or aromatic anhydride, preferably about 1.5 moles per mole of aroyl halide or aromatic anhydride and, more preferably, from about 2 to about 2.5 moles of Lewis acid per mole of aroyl halide or aromatic anhydride. Preferably, the molar ratio of 1,4-dichlorobenzene to aroyl halide ranges from about 1.2:1 to about 8:1.

  提供一种制备异构纯2,5-二氯苯并酮且收率良好至高的方法。该发明包括使用芳酰卤或芳香酐和至少一种路易斯酸对1,4-二氯苯进行弗里德尔-克拉夫茨芳酰化，后者的量至少为每摩尔芳酰卤或芳香酐约1.1摩尔，最好为每摩尔芳酰卤或芳香酐约1.5摩尔，更好地为每摩尔芳酰卤或芳香酐约2至2.5摩尔的路易斯酸。最好的情况是，1,4-二氯苯与芳酰卤的摩尔比范围约为1.2:1至8:1。
• Enantioselective Radical‐Polar Crossover Reactions of Indanonecarboxamides with Alkenes
  作者：Xiying Zhang、Wangbin Wu、Weidi Cao、Han Yu、Xi Xu、Xiaohua Liu、Xiaoming Feng

  DOI：10.1002/anie.201914151

  日期：2020.3.16

  Highly efficient asymmetric intermolecular radical-polar crossover reactions were realized by combining a chiral N,N'-dioxide/NiII complex catalyst with Ag2 O under mild reaction conditions. Various terminal alkenes and indanonecarboxamides/esters underwent radical addition/cyclization reactions to afford spiro-iminolactones and spirolactones with good to excellent yields (up to 99 %) and enantioselectivities

  通过在温和的反应条件下，将手性N，N'-二氧化物/ NiII复合催化剂与Ag2 O结合，可以实现高效的不对称分子间自由基-极性交叉反应。各种末端烯烃和茚满羧酰胺/酯经过自由基加成/环化反应，得到螺亚氨基内酯和螺内酯，具有良好至优异的收率（高达99％）和对映选择性（高达97％ee）。此外，在温和的反应条件下获得了一系列不同的自由基介导的氧化/消除或环氧化物开环产物。路易斯酸催化剂表现出优异的性能并且排除了强烈的背景反应。