2,4-二甲基苯甲酸乙酯 | 33499-42-2

• 物质功能分类: 化学试剂 - 有机试剂 - 酯类
• 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: 2,4-二甲基苯甲酸乙酯
• 英文名称: 2,4-dimethylbenzoic acid ethyl ester
• 英文别名: 2,4-Dimethylbenzoesaeure-ethylester；ethyl 2,4-dimethylbenzoate；2,4-dimethyl-benzoic acid ethyl ester；ethyl-2,4-dimethylbenzoate；Ethyl-2,4-dimethylbenzoat
• CAS: 33499-42-2
• 化学式: C₁₁H₁₄O₂
• mdl: MFCD00015438
• 分子量: 178.231
• InChiKey: RJYPOWRKMKNFHH-UHFFFAOYSA-N

物化性质

• 沸点：
  156 °C(Press: 40 Torr)
• 密度：
  1.010±0.06 g/cm3(Predicted)
• 稳定性/保质期：
  如果按照规格使用和储存，则不会发生分解，且目前没有已知的危险反应。

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.363
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 安全说明：
  S24/25
• 海关编码：
  2916399090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Ethyl 2,4-dimethylbenzoate
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: Ethyl 2,4-dimethylbenzoate
CAS number: 33499-42-2

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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: C11H14O2
Molecular weight: 178.2

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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.

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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：

  2,4-二甲基苯甲酸乙酯 在 chromium(VI) oxide 、 硫酸 、 溶剂黄146 作用下， 以 乙醇 为溶剂， 反应 8.0h， 生成 ethyl 4-formyl-2-methylbenzoate
  参考文献：
  名称：

  Synthesis of Novel Heteroarotinoids with Receptor Activation Capabilities and Tgase Activity. Single Crystal Analysis of (E)-4-[(2,3-dihydro- 2,2,4,4,-tetramethyl-2H-1-benzo- [b]thiopyran-6-Yl)- 1-propenyl]-2-methylbenzoic Acid

  摘要：

  The syntheses of ethyl (E)-4-[(2,3-dihydro-2,2,4,4-tetramethyl-2H-1-benzo[b]thiopyran-6-yl)-1-propenyl]-2-methylbenzoate acid (1) and (E)-4- [(2,3-dihydro-2,2,4,4-tetramethyl-2H-1-benzo[b]thiopyran-6-yl)-l-pro-penyl]-2-methylbenzoic acid (2) haue been achieved. In comparison to ester 1, acid 2 exhibited greater efficacy in activating RARalpha, RARbeta, and RARgamma as well as greater potency in activating RARalpha and RARbeta. Interestingly, both the ester 1 and acid 2 exhibited nearly equal polency in activating RARgamma. Both compounds also inditced tissue transglutaininase (TGase) activity approximately 50% of the level induced by trans-retinoic acid. An X-ray diffraction analysis of (E)-2 revealed the aryl rings as nearly orthogonal [74.0(2)degrees] and a torsional angle of 46.5(2)degrees between the thiochroman group and the propenyl group. Conjugation between. such groups may not be a stringent requirement for receptor activation.

  DOI：

  10.1080/104265090507678
• 作为产物：
  描述：

  2,4-二甲基溴苯 在 4-二甲氨基吡啶 、 二(三叔丁基膦)钯 、 苄基三苯基氯化膦 作用下， 以 甲苯 为溶剂， 20.0~110.0 ℃ 、2.03 MPa 条件下， 反应 52.0h， 生成 2,4-二甲基苯甲酸乙酯
  参考文献：
  名称：

  钯催化芳基溴化物的氯羰基化合成酰氯

  摘要：

  我们报告了钯催化的芳基溴化物的氯羰基化合成酰氯的方法。机理研究表明，空间受限的P t Bu 3和CO配位与钯的结合可以快速平衡碳-卤素键的氧化加成/还原消除。这提供了一种有用的方法，可以用稳定的和可用的试剂组装高反应性的酰氯，并且可以与随后的亲核反应偶联，以生成新的羰基化产物类别。

  DOI：

  10.1002/chem.201500476

文献信息

• Design, synthesis, insecticidal activity and 3D-QSR study for novel trifluoromethyl pyridine derivatives containing an 1,3,4-oxadiazole moiety
  作者：F. Z. Xu、Y. Y. Wang、D. X. Luo、G. Yu、S. X. Guo、H. Fu、Y. H. Zhao、J. Wu

  DOI：10.1039/c8ra00161h

  日期：——

  A series of trifluoromethyl pyridine derivatives containing 1,3,4-oxadiazole moiety was designed, synthesized and bio-assayed for their insecticidal activity. The result of bio-assays indicated the synthesized compounds exhibited good insecticidal activity against Mythimna separata and Plutella xylostella, most of the title compounds show 100% insecticidal activity at 500 mg L−1 and >80% activity at

  设计、合成了一系列含有1,3,4-恶二唑部分的三氟甲基吡啶衍生物，并对其杀虫活性进行了生物测定。生物测定结果表明，合成的化合物对Mythimna separata和Plutella xylostella表现出良好的杀虫活性，大多数标题化合物在 500 mg L -1 时表现出 100% 的杀虫活性，在250 mg L -1时表现出大于 80% 的杀虫活性。两种害虫。化合物E18和E27对Mythimna separata的LC 50值分别为38.5和30.8 mg L -1，接近阿维菌素（29.6 mg L -1); 化合物E5、E6、E9、E10、E15、E25、E26和E27在 250 mg L -1下显示出 100% 的活性，优于毒死蜱 (87%)。提出了具有良好可预测性的 CoMFA 和 CoMSIA 模型，表明苯环 2 位和 4 位具有适当体积的吸电子基团可以增强杀虫活性。
• Regio- and Chemoselective CH Chlorination/Bromination of Electron-Deficient Arenes by Weak Coordination and Study of Relative Directing-Group Abilities
  作者：Xiuyun Sun、Gang Shan、Yonghui Sun、Yu Rao

  DOI：10.1002/anie.201300176

  日期：2013.4.15

  It's all relative: A practical and efficient PdII‐catalyzed regio‐ and chemoselective chlorination/bromination has been developed for the facile synthesis of a broad range of aromatic chlorides. The reaction demonstrates excellent reactivity, good functional‐group tolerance, and high yields. A preliminary study was conducted to evaluate relative directing‐group abilities of various functionalities

  都是相对的：已经开发了一种实用而有效的Pd II催化的区域和化学选择性氯化/溴化反应，可轻松合成各种芳族氯化物。该反应显示出优异的反应活性，良好的官能团耐受性和高收率。进行了一项初步研究，以评估各种功能的相对指导能力。
• Synthesis and bioactivity of sulfide derivatives containing 1,3,4-oxadiazole andpyridine
  作者：Gang YU、Shunhong CHEN、Feng HE、Dexia LUO、Yu ZHANG、Jian WU

  DOI：10.3906/kim-1901-45

  日期：——

  A series of novel sulfide derivatives containing 1,3,4-oxadiazole and pyridine were synthesized, characterized, and tested for their antibacterial activity against tobacco bacterial wilt and rice bacterial blight and for insecticidal activity toward diamondback moth. The results showed that some compounds had good insecticidal and bactericidal activity, e.g., the activities of compounds 6e and 6g-6j toward tobacco bacterial wilt were much better than those of commercial thiodiazole-copper, and some of the synthesized compounds possessed good insecticidal activity against Plutella xylostella. Compounds 6d, 6h, 6j, 6l, 6p, 6r, and 6p displayed over 93% activity at 500 mg L$^-1}$.

  合成了一系列含有1,3,4-噁二唑和吡啶的新型硫化物衍生物，并对其进行了表征和抗菌活性测试，针对烟草细菌性枯萎病和稻细菌性条斑病，以及对小菜蛾的杀虫活性。结果表明，某些化合物具有良好的杀虫和杀菌活性，例如，化合物6e和6g-6j对烟草细菌性枯萎病的活性远优于商业化的硫二嗪铜，并且一些合成的化合物对小菜蛾具有良好的杀虫活性。化合物6d、6h、6j、6l、6p、6r和6p在500 mg/L下显示出超过93%的活性。
• [EN] N-HYDROXYFORMAMIDE COMPOUNDS AND COMPOSITIONS COMPRISING THEM FOR USE AS BMP1, TLL1 AND/OR TLL2 INHIBITORS<br/>[FR] COMPOSÉS N-HYDROXYFORMAMIDES ET COMPOSITIONS LES COMPRENANT POUR UNE UTILISATION COMME INHIBITEURS DE BMP1, TLL1 ET/OU TLL2
  申请人：GLAXOSMITHKLINE INTELLECTUAL PROPERTY (NO 2) LTD

  公开号：WO2017006296A1

  公开（公告）日：2017-01-12

  Compounds of Formulas (I) and (II) and salts thereof; methods of making and using the same, including use for inhibiting BMP1, TLL1 and/or TLL2 and in treatment of diseases associated with BMP1, TLL1 and/or TLL2 activity.

  公式（I）和（II）的化合物及其盐；制备和使用这些化合物的方法，包括用于抑制BMP1、TLL1和/或TLL2以及治疗与BMP1、TLL1和/或TLL2活性相关的疾病的用途。
• Die Synthese von 2-Methyl-5-phenacyl-1,3,4-thiadiazolen / The Synthesis of 2-Methyl-5-phenacyl-1,3,4-thiadiazoles
  作者：Willi Kantlehner、Erwin Haug、Willy Kinzy、Oliver Scherr、Ivo C. Ivanov

  DOI：10.1515/znb-2004-0403

  日期：2004.4.1

  Keywords 2,5-Dimethyl-1,3,4-thiadiazole (1a) reacts which aromatic carboxylic acid esters 8a - u in the presence of excessive sodium hydride under condensation to give sodium enolates which afford on hydrolysis the phenacyl-1,3,4-thiadiazoles 9a - u. The action of aromatic carboxylic acid chlorides on 1a in the presence of triethylamine gives rise to the formation of mixtures of diacylated thiadiazole

  关键词 2,5-二甲基-1,3,4-噻二唑 (1a) 在过量氢化钠存在下缩合生成芳香族羧酸酯 8a - u，生成烯醇钠，水解生成苯甲酰基-1,3， 4-噻二唑 9a - u。在三乙胺存在下，芳族羧酸氯化物对 1a 的作用导致形成二酰化噻二唑衍生物 16 和 18 的混合物。在某些情况下，纯 3-酰基-苯亚基-2,3-二氢-1,3，可以分离4-噻二唑16。通常化合物16在高沸点溶剂中加热重排得到烯醇苯甲酸酯18。二酰化噻二唑16和18的水解产生苯甲酰噻二唑9a、c、d、g-j、v、w。

表征谱图