2-甲基苯并呋喃 | 4265-25-2

• 物质功能分类: 有机原料 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 中文名称: 2-甲基苯并呋喃
• 英文名称: 2-methylbenzofuran
• 英文别名: 2-methylcoumarone；2-methylbenzo[b]furan；2-methyl-1-benzofuran
• CAS: 4265-25-2
• 化学式: C₉H₈O
• mdl: MFCD00005850
• 分子量: 132.162
• InChiKey: GBGPVUAOTCNZPT-UHFFFAOYSA-N

物化性质

• 熔点：
  161 °C
• 沸点：
  197-198 °C (lit.)
• 密度：
  1.057 g/mL at 25 °C (lit.)
• 闪点：
  154 °F
• LogP：
  3.45
• 物理描述：
  Colourless liquid; Burnt phenolic aroma
• 溶解度：
  Practically insoluble to insoluble in water
• 折光率：
  1.548-1.560
• 保留指数：
  1131;1109;1109;1117;1107;1109;1123;180;184.5
• 稳定性/保质期：
  • 存在于主流烟气中。

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.111
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  2932999099
• 安全说明：
  S23,S24/25
• WGK Germany：
  3
• 危险性防范说明：
  P210,P264,P270,P280,P301+P312,P330,P370+P378,P403+P235,P501
• 危险性描述：
  H302,H227
• 储存条件：
  请将药品存放在密闭、阴凉干燥的地方。

SDS

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Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
Product name : 2-Methylbenzofuran
CAS-No. : 4265-25-2
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

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Section 2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Label elements
The product does not need to be labelled in accordance with EC directives or respective national laws.
Other hazards - none

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
Formula : C9H8O
Molecular Weight : 132,16 g/mol

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Section 4. FIRST AID MEASURES
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with
water. Consult a physician.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Indication of any immediate medical attention and special treatment needed
no data available

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Section 5. FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
For small (incipient) fires, use media such as "alcohol" foam, dry chemical, or carbon dioxide. For large
fires, apply water from as far as possible. Use very large quantities (flooding) of water applied as a mist or
spray; solid streams of water may be ineffective. Cool all affected containers with flooding quantities of
water.
Special hazards arising from the substance or mixture
Carbon oxides
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
Use water spray to cool unopened containers.

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Section 6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Avoid breathing vapors, mist or gas. Remove all sources of ignition. Beware of vapours accumulating to
form explosive concentrations. Vapours can accumulate in low areas.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Methods and materials for containment and cleaning up
Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and
place in container for disposal according to local regulations (see section 13). Keep in suitable, closed
containers for disposal.
Reference to other sections
For disposal see section 13.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Avoid inhalation of vapour or mist.
Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic
charge.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are
opened must be carefully resealed and kept upright to prevent leakage.
Specific end use(s)
no data available

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Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and
at the end of workday.
Personal protective equipment
Eye/face protection
Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested
and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
impervious clothing, The type of protective equipment must be selected according to the
concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator
with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup
to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air
respirator. Use respirators and components tested and approved under appropriate government
standards such as NIOSH (US) or CEN (EU).

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) Appearance Form: clear, liquid
Colour: light yellow
b) Odour no data available
c) Odour Threshold no data available
d) pH no data available
e) Melting point/freezing no data available
point
f) Initial boiling point and 197 - 198 °C - lit.
boiling range
g) Flash point 67 °C - closed cup
h) Evaporation rate no data available
i) Flammability (solid, gas) no data available
j) Upper/lower no data available
flammability or
explosive limits
k) Vapour pressure no data available
l) Vapour density no data available
m) Relative density 1,057 g/cm3 at 25 °C
n) Water solubility no data available
o) Partition coefficient: n- no data available
octanol/water
p) Auto-ignition no data available
temperature
q) Decomposition no data available
temperature
r) Viscosity no data available
s) Explosive properties no data available
t) Oxidizing properties no data available
Other safety information
no data available

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Section 10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
Heat, flames and sparks.
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

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Section 11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion May be harmful if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes May cause eye irritation.
Signs and Symptoms of Exposure
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Additional Information
RTECS: Not available

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Section 12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
no data available

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Section 13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
This combustible material may be burned in a chemical incinerator equipped with an afterburner and
scrubber. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed
professional waste disposal service to dispose of this material.
Contaminated packaging
Dispose of as unused product.

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Section 14. TRANSPORT INFORMATION
UN number
ADR/RID: - IMDG: - IATA: -
UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
Packaging group
ADR/RID: - IMDG: - IATA: -
Environmental hazards
ADR/RID: no IMDG Marine Pollutant: no IATA: no
Special precautions for user
no data available

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SECTION 15 - REGULATORY INFORMATION
N/A

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

化学性质
这是一种无色液体。其沸点为197.3-197.8℃，在93-94℃时蒸汽压为2.67kPa；相对密度为1.0540（20/4℃），折光率为1.5495，闪点为67℃。它易溶于乙醇和乙醚，而不溶于水。

用途
该化合物可用于有机合成。

生产方法
将含有2.4g镁和14.2g碘甲烷的50ml冷乙醚溶液加入到5g苯并二氢呋喃-3-酮的乙醚溶液中，在水浴上加热数小时，可制得2-甲基苯并呋喃。

反应信息

• 作为反应物：
  描述：

  2-甲基苯并呋喃 在 盐酸 、 丙酮 、 potassium iodide 作用下， 生成 2-(2-methylbenzofuran-3-yl)acetonitrile
  参考文献：
  名称：

  An “Isoaromatic” Product from 2-Methyl-3-benzofurylmethylmagnesium Chloride

  摘要：

  DOI：

  10.1021/ja01141a028
• 作为产物：
  描述：

  2-烯丙基酚 在 双(乙腈)氯化钯(II) 、 四氧化钒铋 、 sodium acetate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以83%的产率得到2-甲基苯并呋喃
  参考文献：
  名称：

  可见光光氧化还原催化Wack​​er型氧化

  摘要：

  提出了钯/光氧化还原组合催化体系，用于将末端烯烃有效氧化为相应的甲基酮。空气，水和光的相互作用导致协议中的氧化钯催化所需的化学计量氧化剂被催化的单电子转移过程所取代。详细的机械研究表明，关键成分，原位产生的物种和催化剂的作用。在同质和异质光氧化还原方案中检查了各种各样的基材，从而以良好的产量提供了所需的产品。

  DOI：

  10.1002/cctc.201900271
• 作为试剂：
  描述：

  4,5,6,7-四氢苯并咪唑-5-羧酸硫酸盐 、 氯化亚砜 、 富马酸 、 fumarate 、 乙腈 在 硝基苯 、 2-甲基苯并呋喃 、 四氯化锡 、 盐酸 、 乙醚 、 氯仿 、 silica gel 、 乙醇 作用下， 以 chloroform methanol 为溶剂， 反应 1.0h， 以to obtain 0.14 g of 5-[(2-methylbenzofuran-3-yl)carbonyl]-4,5,6,7-tetrahydrobenzimidazole fumarate的产率得到5-[(2-methylbenzofuran-3-yl)carbonyl]-4,5,6,7-tetrahydrobenzimidazole fumarate
  参考文献：
  名称：

  5-substituted tetrahydrobenzimidazole compounds

  摘要：

  提供了一种制备式（Ib）所表示的四氢苯并咪唑衍生物的过程：##STR1## 其中Het代表杂环基团，该杂环基团可以被1-3个取自以下组的取代基所取代：低碳基、低烯基、低炔基、环烷基-低碳基、芳基烷基、低碳酰氧基和卤素原子；X.sup.2代表连接到如上所述的Het所表示的杂环环上的碳原子的单键。该过程包括将由式（IIIa）表示的杂环化合物：Het-X.sup.2-H（IIIa）其中，Het和X.sup.2如上所定义，与由式（II）表示的羧酸：##STR2## 或其反应性衍生物反应。

  公开号：

  US05496942A1

文献信息

• [EN] HETEROCYCLIC COMPOUNDS FOR THE TREATMENT OF STRESS-RELATED CONDITIONS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES POUR LE TRAITEMENT D'ÉTATS LIÉS AU STRESS
  申请人：OTSUKA PHARMA CO LTD

  公开号：WO2010137738A1

  公开（公告）日：2010-12-02

  The present invention provides a novel heterocyclic compound. A heterocyclic compound represented by general formula (1) wherein, R1 and R2, each independently represent hydrogen; a phenyl lower alkyl group that may have a substituent(s) selected from the group consisting of a lower alkyl group and the like on a benzene ring and/or a lower alkyl group; or a cyclo C3-C8 alkyl lower alkyl group; or the like; R3 represents a lower alkynyl group or the like; R4 represents a phenyl group that may have a substituent(s) selected from the group consisting of a 1,3,4-oxadiazolyl group that may have e.g., halogen or a heterocyclic group selected from pyridyl group and the like; the heterocyclic group may have at least one substituent(s) selected from a lower alkoxy group and the like or a salt thereof.

  本发明提供了一种新颖的杂环化合物。一种由通式（1）表示的杂环化合物，其中，R1和R2分别独立表示氢；苯基较低烷基基团，可能在苯环和/或较低烷基基团上具有从较低烷基基团等组成的取代基；或环C3-C8烷基较低烷基基团；或类似物；R3表示较低炔基基团或类似物；R4表示可能具有从1,3,4-噁二唑基团（例如，卤素）或从吡啶基团等组成的取代基的苯基团；所述杂环基可能具有至少一个从较低烷氧基等选择的取代基或其盐。
• Npy antagonists, preparation and uses
  申请人：Botez Iuliana

  公开号：US20090233910A1

  公开（公告）日：2009-09-17

  The present invention concerns novel compounds, their preparation and their uses, therapeutic uses in particular. More specifically it concerns derivative compounds having at least two aromatic cycles, their preparation and their uses, in particular in the area of human or animal health. These compounds have an affinity for the biological receptors of neuropeptide Y, NPY, present in the central and peripheral nervous systems. The compounds of the invention are preferably NPY antagonists, and more particularly antagonists of sub-type NPY Y1, and can therefore be used for the therapeutic or prophylactic treatment of any disorder involving NPY. The present invention also concerns pharmaceutical compositions containing said compounds, their preparation and their uses, as well as treatment methods using said compounds.

  本发明涉及新颖化合物，它们的制备和用途，特别是在治疗方面的用途。更具体地说，它涉及至少具有两个芳香环的衍生化合物，它们的制备和用途，特别是在人类或动物健康领域。这些化合物对存在于中枢和外周神经系统中的神经肽Y（NPY）的生物受体具有亲和力。本发明的化合物优选为NPY拮抗剂，更具体地说是NPY Y1亚型的拮抗剂，因此可用于治疗或预防涉及NPY的任何疾病。本发明还涉及含有所述化合物的药物组合物，其制备和用途，以及使用所述化合物的治疗方法。
• [EN] PRMT5 INHIBITORS CONTAINING A DIHYDRO- OR TETRAHYDROISOQUINOLINE AND USES THEREOF<br/>[FR] INHIBITEURS DE LA PRMT5 CONTENANT UNE DIHYDRO- OU TÉTRAHYDRO-ISOQUINOLÉINE ET LEURS UTILISATIONS
  申请人：EPIZYME INC

  公开号：WO2014100730A1

  公开（公告）日：2014-06-26

  Described herein are compounds of Formula (A), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting PRMT5 activity. Methods of using the compounds for treating PRMT5- mediated disorders are also described.

  本文描述了式（A）的化合物，其药学上可接受的盐以及药物组合物。本发明的化合物对抑制PRMT5活性是有用的。还描述了利用这些化合物治疗PRMT5介导的疾病的方法。
• An efficient solid-phase synthesis of substituted benzofuran using selenium-bound resin
  作者：Yin jun Zhang、Yu guang Wang

  DOI：10.1002/aoc.2840

  日期：2012.5

  A very efficient solid‐phase synthesis of substituted benzofuran using polymer‐supported selenium resin is described. The advantages of the new method are good yields, high purity, straightforward operations, broad range and high diversity of products, lack of odor, and good stability of the resins. The easy work‐up procedure makes the method suitable for building parallel libraries. Copyright © 2012

  描述了一种使用聚合物负载的硒树脂非常有效地固相合成取代苯并呋喃的方法。新方法的优点是产率高，纯度高，操作简单，产品范围广和多样性高，无气味，树脂的稳定性好。简单的后处理程序使该方法适合于构建并行库。版权所有©2012 John Wiley＆Sons，Ltd.
• Cyclopenta[<i>b</i>]annulation of Heteroarenes by Organocatalytic γ′[C(sp³)−H] Functionalization of Ynones
  作者：Moluguri Raghu、Jagdeep Grover、S. S. V. Ramasastry

  DOI：10.1002/chem.201604562

  日期：2016.12.19

  to the designed ynones triggers γ′[C(sp3)−H] functionalization, leading to the formation of heteroaryl‐based ortho‐quinodimethane (oQDM) intermediates that undergo carbocyclization to provide cyclopentannulated heteroarenes in good yields and excellent stereoselectivities. Deuterium‐labeling experiments substantiated the proposed reaction mechanism as well as the speculated epimerization.

  对于环戊二烯并[一种新方法b通过金属和无定向基团的γ'[C（SP杂芳烃的]环3）-H]官能化和ynones的分子内加氢烷基化得到了发展。在史无前例的事件中，将有机膦亲核加成到设计的炔酮上会触发γ'[C（SP 3）-H]功能化，导致形成杂芳基邻喹啉二甲烷（oQDM）中间体，该中间体经过碳环化作用以提供环戊环杂芳烃具有良好的收率和出色的立体选择性。氘标记实验证实了拟议的反应机理以及推测的差向异构。

表征谱图