2-甲基-3-噻吩甲酸乙酯 | 19432-66-7

• 物质功能分类: 医药中间体 - 杂环化合物 - 噻吩类化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 中文名称: 2-甲基-3-噻吩甲酸乙酯
• 中文别名: 2-甲基噻吩-3-羧酸乙酯
• 英文名称: ethyl 2-methyl-thiophene-3-carboxylate
• 英文别名: ethyl 2-methyl-3-thiophenecarboxylate；ethyl 2-methylthiophene-3-carboxylate；2-methyl-3-thiophenecarboxylic acid ethyl ester
• CAS: 19432-66-7
• 化学式: C₈H₁₀O₂S
• 分子量: 170.232
• InChiKey: GNOBQWZOPPOTMC-UHFFFAOYSA-N

物化性质

• 沸点：
  222.0±20.0 °C(Predicted)
• 密度：
  1.14g/ml

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  54.5
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P264,P270,P301+P312,P330
• 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-methylthiophene-3-carboxylate
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-methylthiophene-3-carboxylate
CAS number: 19432-66-7

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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: C8H10O2S
Molecular weight: 170.2

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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, sulfur oxides.

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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-甲基-3-噻吩甲酸乙酯 在 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 2.0h， 以77%的产率得到2-甲基-3-噻吩甲酸
  参考文献：
  名称：

  Synthesis and antimicrobial activity of some netropsin analogues

  摘要：

  合成了九种新型lexitropsin，通过三种不同的二羧酸（9,10-二氢-2,7-菲二羧酸；[(3-{[(羧甲基)氨基]羰基}苯甲酰)氨基]乙酸和吲哚-2,5-二羧酸）将两个类似netropsin的部分连接在一起。通过使用N-异戊基吡咯、5-甲基噻吩或5-异丙基噻唑异构体构建单元替代通常的N-甲基吡咯，对netropsin残基进行修饰。将这些化合物分别针对五种革兰阳性菌：金黄色葡萄球菌、肠球菌、耐甲氧西林金黄色葡萄球菌、克雷伯氏菌和偶然分枝杆菌，三种革兰阴性菌：气单胞菌、变形杆菌、大肠杆菌，以及三种真菌：黑曲霉、白念珠菌和安氏曲霉进行了测试。其中一些化合物对微生物的生长表现出显著的抑制作用。

  DOI：

  10.1039/b408386p
• 作为产物：
  描述：

  (1-ethoxycarbonylcyclopropyl)triphenylphosphonium tetrafluoroborate 在 2,3-dichloro-4,5-dicyanoquinone 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 74.0h， 生成 2-甲基-3-噻吩甲酸乙酯
  参考文献：
  名称：

  Chatterjee, Pallab; Murphy, Patrick J.; Pepe, Rosanna, Journal of the Chemical Society. Perkin transactions I, 1994, # 17, p. 2403 - 2406

  摘要：

  DOI：

文献信息

• Phosphorylamides, their preparation and use
  申请人：Takeda Chemical Industries, Ltd.

  公开号：US05840917A1

  公开（公告）日：1998-11-24

  A phosphorylamide derivative represented by the general formula (I): ##STR1## wherein R represents an amino group that may be substituted, or a salt thereof, possesses potent antibacterial activity against Helicobacter bacterium, especially Helicobacter pylori, and is useful for prevention or treatment of digestive diseases caused by Helicobacter bacterium, solely or in combination with an antacid or an acid secretion inhibitor.

  一种由通式（I）表示的磷酰胺衍生物：##STR1## 其中R代表可能被取代的氨基团或其盐，对幽门螺杆菌，特别是幽门螺杆菌，具有强效的抗菌活性，并可用于单独或与抗酸剂或酸分泌抑制剂联合预防或治疗由幽门螺杆菌引起的消化系统疾病。
• Convenient Method for the Preparation of the 2-Methyl Thiophen-3-yl Magnesium Bromide Lithium Chloride Complex and Its Application to the Synthesis of 3-Substituted 2-Methylthiophenes
  作者：Masakazu Kogami、Nobuhide Watanabe

  DOI：10.1080/00397911.2011.606391

  日期：2013.1.1

  formation of the Grignard reagent from inactive 3-bromo-2-methylthiophene (1) and commercial magnesium metal. Based on this finding, a convenient and potentially scalable preparation of ethyl 2-methylthiophene-3-carboxylate (3) was achieved. In addition, this process has been found to provide a new, general approach to 3-substituted 2-methylthiophenes. GRAPHICAL ABSTRACT

  摘要 氯化锂被发现可加速非活性 3-溴-2-甲基噻吩 (1) 和商业镁金属形成格氏试剂。基于这一发现，实现了 2-甲基噻吩-3-羧酸乙酯 (3) 的方便且潜在可扩展的制备。此外，已发现该方法为 3-取代的 2-甲基噻吩提供了一种新的通用方法。图形概要
• [EN] NOVEL TRICYCLIC COMPOUNDS<br/>[FR] NOUVEAUX COMPOSÉS TRICYCLIQUES
  申请人：JACOBIO BETA PHARMACEUTICALS CO LTD

  公开号：WO2019080941A1

  公开（公告）日：2019-05-02

  This invention relates to certain novel tricyclic compounds as bromodomain and extra-terminal (BET) inhibitors, their synthesis and their use for treating diseases. More particularly, this invention is directed to fused heterocyclic derivatives useful as inhibitors of BET, methods for producing such compounds and methods for treating diseases and conditions wherein inhibition of one or more BET bromodomains provides a benefit.

  这项发明涉及某些新颖的三环化合物，作为溴结构域和额外末端（BET）抑制剂，它们的合成以及它们用于治疗疾病。更具体地说，这项发明涉及有用作BET抑制剂的融合杂环衍生物，生产这类化合物的方法以及治疗疾病和病况的方法，其中抑制一个或多个BET溴结构域会带来益处。
• [EN] BISARYL HETEROCYCLES AS NRF2 ACTI<br/>[FR] HÉTÉROCYCLES BISARYLE EN TANT QUE NRF2 ACTI
  申请人：GLAXOSMITHKLINE IP DEV LTD

  公开号：WO2018109643A1

  公开（公告）日：2018-06-21

  The present invention relates to bisaryl heterocycle compounds, methods of making them, pharmaceutical compositions containing them and their use as NRF2 activators. In particular, the invention relates to bisaryl heterocycles of Formula (I),

  本发明涉及双芳基杂环化合物，制备方法，包含它们的药物组合物以及它们作为NRF2激活剂的用途。具体而言，该发明涉及式（I）的双芳基杂环化合物。
• Practical Preparation of Ethyl 2-Methylthiophene-3-carboxylate
  作者：Masakazu Kogami、Nobuhide Watanabe

  DOI：10.1248/cpb.59.797

  日期：——

  A safe and efficient process for the preparation of ethyl 2-methylthiophene-3-carboxylate (5) was devised. This process provides several advantages over the precedents, involving operational simplicity, avoidance of the use of strong bases such as n-butyllithium and application of noncryogenic conditions, and enabled to prepare 5 in 52% overall yield from commercially available 2-methylthiophene on

  设计了一种安全高效的2-甲基噻吩-3-羧酸乙酯（5）的制备方法。该方法具有优于先例的多个优点，包括操作简便，避免使用强碱（例如正丁基锂）和避免使用非低温条件，并能够在多公斤级上从市售的2-甲基噻吩制备52％的总收率5规模。

表征谱图