2,4,5-三氯苯甲酸 | 50-82-8

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物 - 环羧酸
• 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: 2,4,5-三氯苯甲酸
• 中文别名: 2,3-二氢-1H-苯并[E]茚-1-酮
• 英文名称: 2,4,5-trichlorobenzoic acid
• 英文别名: 2,4,5-Trichlorobenzoic Acid.；2,4,5-trichloro-benzoic acid；2,4,5-Trichlor-benzoesaeure；2,4,5-trichlorophenylformate；2.4.5-Trichlor-benzoesaeure；2,3,4-Trichlorbenzoesaeure
• CAS: 50-82-8
• 化学式: C₇H₃Cl₃O₂
• 分子量: 225.459
• InChiKey: PTFNNDHASFGWFI-UHFFFAOYSA-N

物化性质

• 熔点：
  166.5°C
• 沸点：
  334.7±37.0 °C(Predicted)
• 密度：
  1.5599 (estimate)
• 溶解度：
  可溶于氯仿（少许）、DMSO（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 海关编码：
  2916399090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温下应存放在干燥且密封的容器中。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,4,5-Trichlorobenzoic acid
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: 2,4,5-Trichlorobenzoic acid
CAS number: 50-82-8

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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: C7H3Cl3O2
Molecular weight: 225.5

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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：

  2,4,5-三氯苯甲酸 在 sodium hydroxide 、 硫酸 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 N,N-二甲基甲酰胺 为溶剂， 反应 21.33h， 生成 2-[2,5-Dichloro-4-[(2-methylpropan-2-yl)oxycarbonyl]phenyl]sulfanylacetic acid
  参考文献：
  名称：

  Anti-MRSA cephems. Part 3

  摘要：

  Twenty-seven novel cephalosporin derivatives with activity against methicillin-resistant Staphylococcus aureus (MRSA) are described. The compounds contain novel acid moieties at C-7 that were synthesized using nucleophilic aromatic substitution reactions and Stille couplings. The most interesting compound (6) displayed an MIC90 against MRSA of 3.7 mug/mL, and an average PD50 of 3.9 mg/kg. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(02)00335-8
• 作为产物：
  描述：

  2,4,5-三氯-1-(三氯甲基)苯 在 三氯化铝 、 硫酸 、 甲基安非他命 作用下， 反应 48.0h， 生成 2,4,5-三氯苯甲酸
  参考文献：
  名称：

  A new trifluoromethylating agent: synthesis of polychlorinated (trifluoromethyl)benzenes and 1,3-bis(trifluoromethyl)benzenes and conversion into their trichloromethyl counterparts and molecular structure of highly strained polychloro-m-xylenes

  摘要：

  Mixtures of CCl3F and AlCl3 replace CF3 for H in polychlorobenzenes. Thus, by treatment of a solution of the suitable polychlorobenzene in CCl3F with AlCl3, the following compounds can be prepared: pentachloro- (2), 2,3,4,5-tetrachloro- (5), 2,3,4,6-tetrachloro- (8), 2,3,5,6-tetrachloro- (11), 2,3,4-trichloro- (14), 2,4,5-trichloro- (17), and 2,4,6-trichloro-1-(trifluoromethyl)benzene (20), as well as 4,5,6-trichloro- (31) and 2,4,6-trichloro-1,3-bis(trifluoromethyl)benzene (32). The reaction of the above-mentioned trifluoromethylated compounds with AlCl3 in CS2 yields their trichloromethyl counterparts: 3, 6, 9, 12, 15, 18, 21, 34, and 36. The chlorination of 32 or 36 by means of Silberrad's reagent (SO2Cl2, AlCl3, and S2Cl2) affords perchloro-m-xylene (38), a new highly strained chlorocarbon whose synthesis was attempted repeatedly in the past. 9, 15, 17, and 21, when treated with oleum and then with water, are converted into 2,3,4,6-tetrachloro- (22), 2,3,4-trichloro- (23), 2,4,5-trichloro- (24), and 2,4,6-trichlorobenzoic acid (25), respectively; under similar treatment, 34, 36, and 38 give 4,5,6-trichloro- (33), 2,4,5-trichloro- (35), and tetrachloroisophthalic acid (39), respectively. The formation of the (trifluoromethyl)benzenes is discussed, and in this connection it has been found that CCl3F solutions of 3 and 18 in the the presence of AlCl3 give back 2 and 17, respectively. Molecular structures of highly strained m-xylenes 36 and 38, as well as that of the much less strained 34, ascertained by X-ray analysis, are reported and commented. IR, UV, and NMR spectral data of the compounds synthesized are presented. The interesting UV spectrum of 21 is discussed.

  DOI：

  10.1021/jo00001a022

文献信息

• Condensed pyrazole derivatives, process for producing the same and use thereof
  申请人：——

  公开号：US20030187014A1

  公开（公告）日：2003-10-02

  Novel pharmaceutical compositions for inhibiting Th2-selective immune response and pharmaceutical compositions for inhibiting cyclooxygenase comprising condensed pyrazole derivatives represented by the general formula (I): 1 or salts thereof.

  用于抑制Th2选择性免疫应答的新型药物组合物和包括由一般式(I)表示的紧缩吡唑烷衍生物的药物组合物，或其盐。
• Cephalosporin derivatives
  申请人：——

  公开号：US20020049191A1

  公开（公告）日：2002-04-25

  The present invention provides a novel series of cephem derivatives of the general formula I 1 wherein R 1 , R 2 , R 3 , R 5 , R 6 , R 7 , A, L 1 , X, n and n′ are as defined herein above. The compounds of formula I are antibacterial agents useful in the treatment of infections in humans and other animals caused by a variety of gram-positive bacteria, particularly methicillin-resistant Staphylococcus aureus . Also included in the invention are processes for preparing the compounds of formula I and pharmaceutical compositions containing said compounds in combination with pharmaceutically acceptable carriers, diluents or excipients.

  本发明提供了一种新的头孢菌素衍生物系列，其一般式为I 1 其中R 1 ，R 2 ，R 3 ，R 5 ，R 6 ，R 7 ，A，L 1 ，X，n和n'如上所定义。式I的化合物是抗菌剂，可用于治疗人类和其他动物因多种革兰氏阳性细菌引起的感染，特别是耐甲氧西林金黄色葡萄球菌。本发明还包括制备式I化合物的方法，以及含有所述化合物的与药用载体、稀释剂或赋形剂组合的药物组合物。
• The effect of chlorine and fluorine substitutions on tuning the ionization potential of benzoate-bridged paddlewheel diruthenium(<scp>ii</scp>, <scp>ii</scp>) complexes
  作者：Wataru Kosaka、Masahisa Itoh、Hitoshi Miyasaka

  DOI：10.1039/c5dt00505a

  日期：——

  A series of paddlewheel diruthenium(ii, ii) complexes with various chlorine- and fluorine-substituted benzoate ligands was summarized in viewpoints of their electrochemistry and HOMO level.

  一系列带有不同氯和氟取代苯甲酸配体的双钌（II，II）桨轮配合物的电化学和HOMO能级观点被总结了。
• Electrocarboxylation of Chlorinated Aromatic Compounds
  作者：Dirk Golinske、Jürgen Voss、Gunadi Adiwidjaja

  DOI：10.1135/cccc20000862

  日期：——

  Chorinated benzenes (1, 4), biphenyls (6, 9), dibenzofurans (10, 15, 17, 18), 2-chlorodibenzo[1,4]dioxine (24) and 1-chloronaphthalene (26) as well as dibenzofuran (12) and naphthalene (27) themselves were transformed into carboxylic acids by galvanostatic electroreduction in the presence of carbon dioxide ("electrocarboxylation"). Dry DMF was used as solvent, zinc or stainless steel as cathode and magnesium as a sacrificial anode in an undivided cell. Hydrogenation of aromatic rings was not observed. However, reductive addition of two molecules of carbon dioxide to form dihydrodicarboxylic acids, e.g. 22 and 29, occurs in the dibenzofuran and naphthalene series.

  氯苯（1，4），联苯（6，9），二苯并呋喃（10，15，17，18），2-氯二苯并[1,4]二噁英（24）和1-氯萘（26）以及二苯并呋喃（12）和萘（27）本身在存在二氧化碳的条件下通过恒电流电还原转化为羧酸（“电羧化反应”）。干燥DMF被用作溶剂，锌或不锈钢作为阴极，镁作为牺牲阳极在一个不分隔的电池中。芳香环的氢化反应没有观察到。然而，在二苯并呋喃和萘系列中发生两分子二氧化碳还原加成形成二氢二羧酸，例如22和29。
• Metabolism of chlorophenylalanines in crop and weed plants in relation to the formation of potential herbicidal end products☆
  作者：David C. Taylor、Frank Wightman、Clem W. Kazakoff

  DOI：10.1016/0031-9422(88)80592-2

  日期：——

  Abstract Metabolism of 12 synthetic d , l -chlorophenylalanines has been examined in several crop and weed plants. Twenty-five gram samples of excised shoots or leaves of bushbean, soybean, corn, pigweed, lambsquarters and giant foxtail were allowed to metabolize 10 −4 M solutions of the d , l -chlorophenylalanines for 24 hr in continuous light. The plant samples were then extracted in 80% methanol

  摘要 12 种合成 d , l - 氯苯丙氨酸在几种作物和杂草植物中的代谢情况已被检测。25 克从灌木豆、大豆、玉米、猪草、羊羔和大狗尾草的切下枝条或叶子的样品在连续光照下代谢 10 -4 M d，l-氯苯丙氨酸溶液 24 小时。然后将植物样品用 80% 甲醇提取，并将可溶性酸性代谢物分馏到乙醚中。每种醚浓缩物通过从 PrepSep C18 柱的分级洗脱进行部分纯化，然后通过 HPLC 进行分析。收集的馏分用五氟苄溴酯化并通过 GC-MS 检查以证明存在氯苯乙酸、氯苯甲酸和/或氯肉桂酸的 PFB 酯。