2-氯-6-(咪唑并L-1-基)吡嗪 | 941294-48-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 2-氯-6-(咪唑并L-1-基)吡嗪
• 中文别名: 2-氯-6-(咪唑并-1-基)吡嗪；4-(6-氯吡嗪-2-基-)吗啉；2-氯-6-(咪唑-1-基)吡嗪
• 英文名称: 2-Chloro-6-(1H-imidazol-1-yl)pyrazine
• 英文别名: 2-chloro-6-imidazol-1-ylpyrazine
• CAS: 941294-48-0
• 化学式: C₇H₅ClN₄
• 分子量: 180.596
• InChiKey: HHEPEXVSWGTIPS-UHFFFAOYSA-N

物化性质

• 沸点：
  356.0±42.0 °C(Predicted)
• 密度：
  1.47±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  43.6
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2933990090

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-Chloro-6-(imidazol-1-yl)pyrazine
Synonyms: 2-Chloro-6-(1H-imidazol-1-yl)pyrazine

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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-Chloro-6-(imidazol-1-yl)pyrazine
CAS number: 941294-48-0

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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.
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: C7H5ClN4
Molecular weight: 180.6

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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, 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-氯-6-(咪唑并L-1-基)吡嗪 在 四甲基氟化铵 作用下， 以 二甲基亚砜 为溶剂， 反应 24.0h， 以90%的产率得到2-fluoro-6-(1H-imidazol-1-yl)pyrazine
  参考文献：
  名称：

  用于 SNAr 氟化的四甲基氟化铵醇加合物

  摘要：

  亲核芳族氟化 (S N Ar) 是形成 C(sp 2 )-F 键的最常用方法之一。尽管最近取得了许多进展，但这些转化的长期限制是需要严格干燥的非质子条件来保持氟化物的亲核性并抑制副产物的产生。本报告通过利用四甲基氟化铵醇加合物 (Me 4 NF·ROH) 作为 S N Ar 氟化的氟化物来源解决了这一挑战。通过系统调整醇取代基 (R)，四甲基氟化铵叔戊醇 (Me 4 NF· t-AmylOH) 被确定为在温和方便的条件下（DMSO 中 80°C，无需干燥试剂或溶剂）下用于 S N Ar 氟化的廉价、实用且台式稳定的试剂。展示了超过 50 种（杂）芳基卤化物和硝基芳烃亲电子试剂的底物范围。

  DOI：

  10.1021/acs.orglett.1c01490
• 作为产物：
  描述：

  咪唑 、 2,6-二氯吡嗪 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.08h， 以70%的产率得到2-氯-6-(咪唑并L-1-基)吡嗪
  参考文献：
  名称：

  Selective mono-amination of dichlorodiazines

  摘要：

  A mild, easy-to-perform, and versatile method for the formation of aminochlorodiazines from reaction of several types of dichlorodiazines (i.e., pyridazines, pyrimidines, and pyrazines) with primary or secondary amines in ethanol in the presence of triethylamine as a base, is described. The methodology is general and efficient despite noticeable difference in reactivity between diazines. While dichloropyridazine and dichloropyrazine require several hours of heating at reflux for the reaction to proceed, dichloropyrimidines reach completion within minutes at room temperature. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2015.05.056

文献信息

• Tetramethylammonium Fluoride Alcohol Adducts for S_NAr Fluorination
  作者：María T. Morales-Colón、Yi Yang See、So Jeong Lee、Peter J. H. Scott、Douglas C. Bland、Melanie S. Sanford

  DOI：10.1021/acs.orglett.1c01490

  日期：2021.6.4

  aprotic conditions to maintain the nucleophilicity of fluoride and suppress the generation of side products. This report addresses this challenge by leveraging tetramethylammonium fluoride alcohol adducts (Me4NF·ROH) as fluoride sources for SNAr fluorination. Through systematic tuning of the alcohol substituent (R), tetramethylammonium fluoride tert-amyl alcohol (Me4NF·t-AmylOH) was identified as an

  亲核芳族氟化 (S N Ar) 是形成 C(sp 2 )-F 键的最常用方法之一。尽管最近取得了许多进展，但这些转化的长期限制是需要严格干燥的非质子条件来保持氟化物的亲核性并抑制副产物的产生。本报告通过利用四甲基氟化铵醇加合物 (Me 4 NF·ROH) 作为 S N Ar 氟化的氟化物来源解决了这一挑战。通过系统调整醇取代基 (R)，四甲基氟化铵叔戊醇 (Me 4 NF· t-AmylOH) 被确定为在温和方便的条件下（DMSO 中 80°C，无需干燥试剂或溶剂）下用于 S N Ar 氟化的廉价、实用且台式稳定的试剂。展示了超过 50 种（杂）芳基卤化物和硝基芳烃亲电子试剂的底物范围。
• Selective mono-amination of dichlorodiazines
  作者：Stéphane Sengmany、Julie Lebre、Erwan Le Gall、Eric Léonel

  DOI：10.1016/j.tet.2015.05.056

  日期：2015.7

  A mild, easy-to-perform, and versatile method for the formation of aminochlorodiazines from reaction of several types of dichlorodiazines (i.e., pyridazines, pyrimidines, and pyrazines) with primary or secondary amines in ethanol in the presence of triethylamine as a base, is described. The methodology is general and efficient despite noticeable difference in reactivity between diazines. While dichloropyridazine and dichloropyrazine require several hours of heating at reflux for the reaction to proceed, dichloropyrimidines reach completion within minutes at room temperature. (C) 2015 Elsevier Ltd. All rights reserved.