2,5-二甲基噻唑 | 4175-66-0

• 物质功能分类: 香精与香料 - 合成香料 - 内酯和含氧杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2,5-二甲基噻唑
• 英文名称: 2,5-dimethyl-1,3-thiazole
• 英文别名: 2,5-Dimethyl-thiazol；2,5-dimethylthiazole
• CAS: 4175-66-0
• 化学式: C₅H₇NS
• 分子量: 113.183
• InChiKey: WVUHHPQQQLBMOE-UHFFFAOYSA-N

物化性质

• 沸点：
  152°C (estimate)
• 密度：
  1.075 (estimate)
• LogP：
  1.56
• 物理描述：
  Yellow liquid; Cooked, brown and roasted nutty aroma
• 溶解度：
  Soluble in non-polar solvents; slightly soluble in water
• 折光率：
  1.523-1.527
• 保留指数：
  922;887;922;868;899

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  41.1
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2934100090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,5-Dimethylthiazole
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-Dimethylthiazole
CAS number: 4175-66-0

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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, refrigerated.
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: C5H7NS
Molecular weight: 113.2

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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, nitrogen oxides, 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

制备方法与用途

简介

2,5-二甲基噻唑是一种黄色液体，具有烤坚果的芳香气味。

制备

通过以2-甲基噻唑及碘甲烷为起始物料，在碱性条件下进行甲基化反应，可以制备目标化合物2,5-二甲基噻唑。其合成反应式如下图所示：

反应信息

• 作为反应物：
  描述：

  2,5-二甲基噻唑 在 盐酸 、 2,4,6-三甲基苯磺酰羟胺 、 sodium hydroxide 、 sodium nitrite 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 10.75h， 生成 2,6-dimethylpyrazolo[5,1-b][1,3]thiazole-7-amine
  参考文献：
  名称：

  PYRAZOLOTHIAZOLE COMPOUND

  摘要：

  化合物的分子式为(I)，或其药理学上可接受的盐，表现出优异的CRF受体拮抗作用，其中X是氮原子或CH；R1是-A11-A12；A11是一个单键或C1-6烷基链；A12是氢原子、C1-6烷基或C3-6环烷基等；R2是-A21-A22；A21是一个单键或C1-6烷基链；A22是氢原子、C1-6烷基、C3-6环烷基、非芳香杂环基或杂芳基等；R3是C1-6烷基、C3-6环烷基、C1-6烷氧基、C3-6环烷氧基C1-6烷基、二C1-6烷基氨基、卤素原子、氰基、甲酰基或羧基等；R4是氢原子或C1-6烷氧基；R5是卤素原子、C1-6烷基或C1-6烷氧基；R6是氢原子、C1-6烷基、C1-6烷氧基、C1-6烷基硫基或C1-6烷基亚砜基等；R7是C1-6烷基、C1-6烷氧基或C1-6烷基硫基。

  公开号：

  US20110086882A1
• 作为产物：
  描述：

  2,5-二甲基恶唑 在 aluminum oxide 、 硫化氢 作用下， 生成 2,5-二甲基噻唑
  参考文献：
  名称：

  Jur'ew; Shukowa, Zhurnal Obshchei Khimii, 1958, vol. 28, p. 7,10; engl. Ausg. S. 5, 7

  摘要：

  DOI：

文献信息

• A Carbonylation Approach Toward Activation of C_sp2-H and C_sp3-H Bonds: Cu-Catalyzed Regioselective Cross Coupling of Imidazo[1,2-<i>a</i>]pyridines with Methyl Hetarenes
  作者：Sai Lei、Yingying Mai、Caijuan Yan、Jianwen Mao、Hua Cao

  DOI：10.1021/acs.orglett.6b01588

  日期：2016.8.5

  An efficient copper-catalyzed selective cross coupling of imidazo[1,2-a]pyridines with methyl hetarenes has been reported. This transformation opened a new route to synthesize the C-3 carbonyl imidazo[1,2-a]pyridine derivative, which is a common structural motif in natural products and pharmaceuticals. 18O-labeling experiments indicated that the oxygen source of products originated from O2.

  已经报道了咪唑并[1,2- a ]吡啶与甲基己烯的有效铜催化选择性交叉偶联。这种转变为合成C-3羰基咪唑并[1,2- a ]吡啶衍生物开辟了一条新途径，该衍生物是天然产物和药物中常见的结构基序。18 O-标记实验表明产物的氧源来自O 2。
• [EN] INDANE DERIVATES AS MUSCARINIC RECEPTOR AGONISTS<br/>[FR] DERIVES D'INDANE UTILISES COMME AGONISTES DU RECEPTEUR MUSCARINIQUE
  申请人：LILLY CO ELI

  公开号：WO2005009941A1

  公开（公告）日：2005-02-03

  The present invention relates to compounds of Formula I: I which are agonists of the M-1 muscarinic receptor.

  这项发明涉及到Formula I的化合物，这些化合物是M-1肌氨酸受体的激动剂。
• Über die Kondensationsfähigkeit der 2-ständigen Methylgruppe in Thiazolverbindungen
  作者：H. Erlenmeyer、O. Weber、P. Schmidt、G. Küng、Chr. Zinsstag、B. Prijs

  DOI：10.1002/hlca.19480310421

  日期：——

  1. Die Kondensationsfähigkeit von 2-Methylthiazolverbindungen gegenüber Benzaldehyd wurde an zahlreichen Beispielen, so auch am 2-Methylthiazol, nachgeprüft und die Struktur der so erhaltenen 2-Styrylthiazolverbindungen durch direkte Synthese aus Zimtsäurethioamid und Halogencarbonylverbindungen belegt.

  1.已经使用许多实例测试了2-甲基噻唑化合物与苯甲醛的缩合能力，包括2-甲基噻唑，并且由此获得的2-苯乙烯基噻唑化合物的结构已经通过从肉桂酸硫酰胺和卤代羰基化合物直接合成来证明。
• Discovery of new chemical entities as potential leads against Mycobacterium tuberculosis
  作者：Xiaoyun Lu、Jian Tang、Zhiyong Liu、Minke Li、Tianyu Zhang、Xiantao Zhang、Ke Ding

  DOI：10.1016/j.bmcl.2016.11.003

  日期：2016.12

  A series of biheterocyclic (1H-indole, benzofuran, pyrazolo[1,5-a]pyrimidine, pyrazolo[1,5-a]pyrimidin-5(4H)-one, imidazo[2,1-b]thiazole and pyrazolo[5,1-b]thiazole) derivatives were synthesized and evaluated for their anti-tubercular activities. The imidazo[2,1-b]thiazoles 9a-c and pyrazolo[5,1-b]thiazoles 10a-c exhibited promising anti-tubercular activity in varying degrees. Especially, the 2,6-dimethylpyrazolo[5

  一系列双杂环（1H-吲哚，苯并呋喃，吡唑并[1,5-a]嘧啶，吡唑并[1,5-a]嘧啶-5（4H）-one，咪唑并[2,1-b]噻唑和吡唑并[合成了5，1-b]噻唑）衍生物并评估了它们的抗结核活性。咪唑并[2，1-b]噻唑9a-c和吡唑并[5，1-b]噻唑10a-c在不同程度上表现出有希望的抗结核活性。特别地，2,6-二甲基吡唑并[5,1-b]噻唑10a具有对H37Ra菌株的强抑制作用，MIC值为0.03μg/ mL。化合物10a还显示出良好的药代动力学特征，口服生物利用度（F）为41.7％，半衰期为13.4h。此外，10a显着降低了自发光H37Ra感染的小鼠模型中的细菌负担，表明其开发抗结核药物的潜力很大。
• Quaternary Salt Formation of Substituted Oxazoles and Thiazoles¹
  作者：Vernon N. Kerr、Donald G. Ott、F. Newton Hayes

  DOI：10.1021/ja01486a042

  日期：1960.1

  The course of quaternization of a number of oxazoles and thiazoles and various dimethylaminophenyl, pyridyl, and quinolyl derivatives was investigated. The salts were screened for hypotensive activity. (auth)

  研究了许多恶唑和噻唑以及各种二甲氨基苯基、吡啶基和喹啉衍生物的季铵化过程。筛选盐的低血压活性。（授权）

表征谱图