2,3,5-三溴-4-甲基噻吩 | 67869-13-0

• 物质功能分类: 医药中间体 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机卤素化合物 - 芳基卤化物
• 中文名称: 2,3,5-三溴-4-甲基噻吩
• 中文别名: 2,4,5-三溴-3-甲基噻吩
• 英文名称: 2,3,5-tribromo-4-methylthiophene
• 英文别名: 2,4,5-tribromo-3-methylthiophene
• CAS: 67869-13-0
• 化学式: C₅H₃Br₃S
• 分子量: 334.857
• InChiKey: DTLNXOZXOZCNMX-UHFFFAOYSA-N

物化性质

• 熔点：
  31°C
• 沸点：
  283.0±35.0 °C(Predicted)
• 密度：
  2.329±0.06 g/cm3(Predicted)
• 闪点：
  31 °C
• 稳定性/保质期：
  远离氧化物、光和热。

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  28.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R36/37/38
• 海关编码：
  2934999090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302

SDS

2,3,5-Tribromo-4-methylthiophene Revision number: 5
SAFETY DATA SHEET

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Section 1. IDENTIFICATION
Product name: 2,3,5-Tribromo-4-methylthiophene

Revision number: 5

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Section 2. HAZARDS IDENTIFICATION
GHS classification
PHYSICAL HAZARDS Not classified
Not classified
HEALTH HAZARDS
ENVIRONMENTAL HAZARDS Not classified
GHS label elements, including precautionary statements
Pictograms or hazard symbols None
No signal word
Signal word
Hazard statements None
None
Precautionary statements:

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance/mixture: Substance
Components: 2,3,5-Tribromo-4-methylthiophene
Percent: >95.0%(GC)
CAS Number: 67869-13-0
Chemical Formula: C5H3Br3S

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Section 4. FIRST AID MEASURES
Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
Get medical advice/attention if you feel unwell.
Skin contact: Remove/Take off immediately all contaminated clothing. Rinse skin with
water/shower. If skin irritation or rash occurs: Get medical advice/attention.
Eye contact: Rinse cautiously with water for several minutes. Remove contact lenses, if present
and easy to do. Continue rinsing. If eye irritation persists: Get medical
advice/attention.
Ingestion: Get medical advice/attention if you feel unwell. Rinse mouth.
A rescuer should wear personal protective equipment, such as rubber gloves and air-
Protection of first-aiders:
tight goggles.

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Section 5. FIRE-FIGHTING MEASURES
Suitable extinguishing Dry chemical, foam, water spray, carbon dioxide.
media:
Specific hazards arising Take care as it may decompose upon combustion or in high temperatures to
from the chemical: generate poisonous fume.
2,3,5-Tribromo-4-methylthiophene

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Section 5. FIRE-FIGHTING MEASURES
Precautions for firefighters: Fire-extinguishing work is done from the windward and the suitable fire-extinguishing
method according to the surrounding situation is used. Uninvolved persons should
evacuate to a safe place. In case of fire in the surroundings: Remove movable
containers if safe to do so.
Special protective When extinguishing fire, be sure to wear personal protective equipment.
equipment for firefighters:

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Section 6. ACCIDENTAL RELEASE MEASURES
Use personal protective equipment. Keep people away from and upwind of spill/leak.
Personal precautions,
protective equipment and Entry to non-involved personnel should be controlled around the leakage area by
emergency procedures: roping off, etc.
Environmental precautions: Prevent product from entering drains.
Methods and materials for Sweep dust to collect it into an airtight container, taking care not to disperse it.
containment and cleaning Adhered or collected material should be promptly disposed of, in accordance with
up: appropriate laws and regulations.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Handling is performed in a well ventilated place. Wear suitable protective equipment.
Technical measures:
Prevent dispersion of dust. Wash hands and face thoroughly after handling.
Use a local exhaust if dust or aerosol will be generated.
Advice on safe handling: Avoid contact with skin, eyes and clothing.
Conditions for safe storage, including any
incompatibilities
Storage conditions: Keep container tightly closed. Store in a refrigerator.
Store away from incompatible materials such as oxidizing agents.
Heat-sensitive, Light-sensitive
Packaging material: Comply with laws.

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Section 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Engineering controls: Install a closed system or local exhaust as possible so that workers should not be
exposed directly. Also install safety shower and eye bath.
Personal protective equipment
Respiratory protection: Dust respirator. Follow local and national regulations.
Hand protection: Protective gloves.
Eye protection: Safety glasses. A face-shield, if the situation requires.
Skin and body protection: Protective clothing. Protective boots, if the situation requires.

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Solid
Physical state (20°C):
Form: Crystal- Lump
Colour: White - Pale yellow
No data available
Odour:
pH: No data available
Melting point/freezing point:31°C (Freezing point)
Boiling point/range: No data available
No data available
Flash point:
Flammability or explosive
limits:
Lower: No data available
No data available
Upper:
Relative density: No data available
Solubility(ies):
[Water] No data available
No data available
[Other solvents]
2,3,5-Tribromo-4-methylthiophene

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Section 10. STABILITY AND REACTIVITY
Chemical stability: Labile.
Possibility of hazardous No special reactivity has been reported.
reactions:
Incompatible materials: Oxidizing agents
Hazardous decomposition Carbon monoxide, Carbon dioxide, Sulfur oxides, Hydrogen bromide
products:

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Section 11. TOXICOLOGICAL INFORMATION
No data available
Acute Toxicity:
Skin corrosion/irritation: No data available
No data available
Serious eye
damage/irritation:
Germ cell mutagenicity: No data available
Carcinogenicity:
IARC = No data available
NTP = No data available
No data available
Reproductive toxicity:

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Section 12. ECOLOGICAL INFORMATION
Ecotoxicity:
No data available
Fish:
Crustacea: No data available
Algae: No data available
Persistence / degradability: No data available
Bioaccumulative No data available
potential(BCF):
Mobility in soil
Log Pow: No data available
No data available
Soil adsorption (Koc):
Henry's Law No data available
constant(PaM3/mol):

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Section 13. DISPOSAL CONSIDERATIONS
Recycle to process, if possible. Consult your local regional authorities. You may be able to dissolve or mix material
with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber system.
Observe all federal, state and local regulations when disposing of the substance.

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Section 14. TRANSPORT INFORMATION
Hazards Class: Does not correspond to the classification standard of the United Nations
Not listed
UN-No:

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Section 15. REGULATORY INFORMATION
Safe management ordinance of dangerous chemical product (State Council announces on January 26, 2002
and revised on February 16,2011): Safe use and production, the storage of a dangerous chemical, transport,
loading and unloading were prescribed.
2,3,5-Tribromo-4-methylthiophene

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  2,3,5-三溴-4-甲基噻吩 在 硝酸 作用下， 生成 3-溴-4-甲基呋喃-2,5-二酮
  参考文献：
  名称：

  Angeli; Ciamician, Chemische Berichte, 1891, vol. 24, p. 77

  摘要：

  DOI：
• 作为产物：
  描述：

  3-甲基噻吩 在 zinc(II) chloride benzyltrimethylazanium tribroman-2-uide 作用下， 以 溶剂黄146 为溶剂， 反应 15.0h， 以72%的产率得到2,3,5-三溴-4-甲基噻吩
  参考文献：
  名称：

  使用季铵多卤化物的卤化。XXXI 噻吩衍生物与苄基三甲基多卤化铵的卤化

  摘要：

  噻吩衍生物与四氯碘酸苄基三甲基铵、三溴化苄基三甲基铵、二氯碘酸苄基三甲基铵在乙酸或乙酸中的反应...

  DOI：

  10.1246/bcsj.64.2566

文献信息

• N-(HETERO)ARYL-PYRROLIDINE DERIVATIVES OF PYRAZOL-4-YL-PYRROLO[2,3-d]PYRIMIDINES AND PYRROL-3-YL-PYRROLO[2,3-d]PYRIMIDINES AS JANUS KINASE INHIBITORS
  申请人：Rodgers James D.

  公开号：US20100298334A1

  公开（公告）日：2010-11-25

  The present invention relates to N-(hetero)aryl-pyrrolidine derivatives of Formula I: which are JAK inhibitors, such as selective JAK1 inhibitors, useful in the treatment of JAK-associated diseases including, for example, inflammatory and autoimmune disorders, as well as cancer.

  本发明涉及式I的N-(杂)芳基吡咯烷衍生物： 这些是JAK抑制剂，如选择性JAK1抑制剂，在治疗JAK相关疾病方面具有用处，例如炎症和自身免疫性疾病，以及癌症。
• Substituted thienyl and furyl acylguanidines and methods of their use as beta-secretase modulators
  申请人：Fobare Floyd William

  公开号：US20060183792A1

  公开（公告）日：2006-08-17

  The present invention provides a substituted thienyl or furyl acylguanidine compound of formula I The present invention also provides methods for the inhibition of β-secretase (BACE) and for the treatment of β-amyloid deposits and neurofibrillary tangles.

  本发明提供了一种式I的取代噻吩或呋喃酰基胍化合物。 本发明还提供了用于抑制β-分泌酶（BACE）和治疗β-淀粉样沉积物和神经原纤维缠结的方法。
• Highly Regioselective Preparation of Heteroaryl-Magnesium Reagents by Using a Br/Mg Exchange
  作者：Christoph Sämann、Benjamin Haag、Paul Knochel

  DOI：10.1002/chem.201202230

  日期：2012.12.7

  Disubstituted thienyl‐, furyl‐ and pyridylmagnesium derivatives are regioselectively prepared from a Br/Mg exchange of the corresponding dibromo compounds by using either iPrMgCl⋅LiCl or hindered arylmagnesium reagents, such as isitylmagnesium bromide⋅lithium chloride (isityl=2,4,6‐triisopropyl‐phenyl) complexed with a diamine ligand, in difficult cases. The selective functionalisations of these heterocyclic

  二取代的噻吩基，呋喃基和pyridylmagnesium衍生物区域选择性从对应的二溴化合物的溴/镁交换通过使用制备我PrMgCl ⋅的LiCl或受阻芳基镁试剂，如溴化isitylmagnesium ⋅氯化锂（isityl = 2,4,6 （三异丙基-苯基）与二胺配体络合，在困难的情况下。通过使用Negishi交叉偶联反应，酰化或加成醛，可以轻松实现这些杂环骨架的选择性官能化。
• Synthesis and Relative Diatropicity of a Remarkably Aromatic Thia[13]annulene
  作者：Reginald H. Mitchell、Vivekanantan S. Iyer

  DOI：10.1021/ja953025k

  日期：1996.1.1

  4-Bis(bromomethyl)-3-methylthiophene was synthesised as an intermediate to prepare the strained thiophenobenzophanediene 11, which readily thermally valence isomerizes to the novel thia[13]annulene 10. This thia-annulene is notably diatropic and shows about 40% of the ring current of the parent bridged [14]annulene 9, which is substantially more than an analogous oxaannulene, 18, and substantially less than the azaannulene

  合成了 2,4-双（溴甲基）-3-甲基噻吩作为中间体来制备应变的噻吩并苯并苯二烯 11，它很容易热价异构化为新型硫杂 [13] 环烯 10。这种硫杂环烯具有显着的介电性并显示出约 40母体桥接 [14] 环烯 9 的环电流的百分比，其显着大于类似的氧杂环烯 18，并且显着小于氮杂环烯 19。
• Regioselective Bromine/Magnesium Exchange for the Selective Functionalization of Polyhalogenated Arenes and Heterocycles
  作者：Alexandre Desaintjean、Tobias Haupt、Leonie J. Bole、Neil R. Judge、Eva Hevia、Paul Knochel

  DOI：10.1002/anie.202012496

  日期：2021.1.18

  toluene enables efficient and regioselective Br/Mg exchanges with various dibromo‐arenes and ‐heteroarenes under mild reaction conditions and provides bromo‐substituted magnesium reagents. Assessing the role of Lewis donor additives in these reactions revealed that N,N,N′,N′′,N′′‐pentamethyldiethylenetriamine (PMDTA) finely tunes the regioselectivity of the Br/Mg exchange on dibromo‐pyridines and quinolines

  使用双金属组合SBU 2在甲苯Mg⋅2LIOR（R = 2-乙基己基）使温和的反应条件下与各种二溴芳烃和-heteroarenes高效和区域选择性比Br / Mg的交流，并提供溴代镁试剂。评估Lewis供体添加剂在这些反应中的作用表明，N，N，N'，N''，N''-五甲基二亚乙基三胺（PMDTA）可以很好地调节Br / Mg交换在二溴吡啶和喹啉上的区域选择性。结合光谱学和X射线晶体学研究，已经实现了完成这些转变的有机金属中间体的混合Li / Mg组成的光。这些系统可与多种亲电试剂有效反应，包括烯丙基溴，酮，醛和Weinreb酰胺，收率很高。

表征谱图