4-乙酰基-5-甲基异噁唑-3-羧酸甲酯 | 104149-61-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 4-乙酰基-5-甲基异噁唑-3-羧酸甲酯
• 英文名称: methyl 4-acetyl-5-methylisoxazole-3-carboxylate
• 英文别名: methyl 4-acetyl-5-methyl-1,2-oxazole-3-carboxylate
• CAS: 104149-61-3
• 化学式: C₈H₉NO₄
• mdl: MFCD00068116
• 分子量: 183.164
• InChiKey: PSCGIMFQGZJVFT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.375
• 拓扑面积：
  69.4
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2934999090

SDS

Name:	Methyl 4-acetyl-5-methylisoxazole-3-carboxylate 97% Material Safety Data Sheet
Synonym:
CAS:	104149-61-3

Section 1 - Chemical Product MSDS Name:Methyl 4-acetyl-5-methylisoxazole-3-carboxylate 97% Material Safety Data Sheet
Synonym:

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
104149-61-3	Methyl 4-acetyl-5-methylisoxazole-3-ca	97%	unlisted

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
May cause respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

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Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately.
Notes to Physician:
Treat symptomatically and supportively.

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

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Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 104149-61-3: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Liquid
Color: colorless - pale yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 87 - 89 deg C @10mmHg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C8H9NO4
Molecular Weight: 183

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Bases, oxidizing agents, reducing agents, amines.
Hazardous Decomposition Products:
Hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 104149-61-3 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Methyl 4-acetyl-5-methylisoxazole-3-carboxylate - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 104149-61-3: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 104149-61-3 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 104149-61-3 is not listed on the TSCA inventory.
It is for research and development use only.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为产物：
  描述：

  硝基乙酸甲酯 、 乙酰丙酮 在 N-甲基哌啶 、 copper diacetate 作用下， 以 氯仿 为溶剂， 反应 72.0h， 以66%的产率得到4-乙酰基-5-甲基异噁唑-3-羧酸甲酯
  参考文献：
  名称：

  初级活化硝基化合物与可烯化化合物的碱和铜催化缩合

  摘要：

  在与活性亚甲基化合物的反应中，初级硝基化合物尚未用作氧化腈前体，因为通常用作脱水剂的试剂也与这些亲偶极体反应。然而，CuII 催化的环加成/缩合程序已被证明对这些底物是可行的，如果使用具有增强酸度（“活化”）的硝基化合物，则直接导致预期的多官能异恶唑。在不添加亲偶极体的情况下，这些硝基化合物会发生自缩合反应生成相应的呋喃。然而，与 3,4-二苯甲酰呋喃一样，苯甲酰硝基甲烷主要产生异构体 3-苯甲酰-4-硝基-5-苯基异恶唑，其结构已通过结晶分析证实。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

  DOI：

  10.1002/ejoc.200900802

文献信息

• A New Synthetic Method of Alkyl Carbonocyanidate<i>N</i>-Oxides
  作者：Tomio Shimizu、Yoshiyuki Hayashi、Kazuhiro Teramura

  DOI：10.1246/bcsj.58.2519

  日期：1985.9

  A thermal decomposition of dimethyl nitromalonate to bis(carbomethoxy)furoxan was observed at about 170 °C. In the presence of dipolarophiles, an intermediate, methyl carbonocyanidate N-oxide MeOCOC≡N→O, could be trapped as cycloadducts in good yields by the 1,3-dipolar cycloaddition. Treatment of dimethyl nitromalonate in mesitylene at the refluxing temperature resulted in a formation of methyl 2-(hydroxyimino)-2-(2,4,6-trimethylphenyl)acetate.

  在约170°C下，观察到了二甲基硝基丙二酸酯的热分解反应，生成了双(羧甲酯)呋喃唑烷。在存在偶极亲电试剂的情况下，可以通过1,3-偶极环加成反应以良好产率捕获作为环加合物的中间体，即甲基碳二腈N-氧化物MeOCOC≡N→O。将二甲基硝基丙二酸酯在均三甲苯中回流处理，导致了甲基2-(羟基亚氨基)-2-(2,4,6-三甲基苯基)乙酸酯的形成。
• Base- and Copper-Catalysed Condensation of Primary Activated Nitro Compounds with Enolisable Compounds
  作者：Elena Trogu、Luca Cecchi、Francesco De Sarlo、Luca Guideri、Fabio Ponticelli、Fabrizio Machetti

  DOI：10.1002/ejoc.200900802

  日期：2009.12

  Primary nitro compounds have not been employed as nitrile oxide precursors in reactions with active methylene compounds because the reagents commonly used as dehydrating agents also react with these dipolarophiles. However, the CuII-catalysed cycloaddition/condensation procedure has been shown to be viable with these substrates, leading directly to the expected polyfunctional isoxazoles provided nitro

  在与活性亚甲基化合物的反应中，初级硝基化合物尚未用作氧化腈前体，因为通常用作脱水剂的试剂也与这些亲偶极体反应。然而，CuII 催化的环加成/缩合程序已被证明对这些底物是可行的，如果使用具有增强酸度（“活化”）的硝基化合物，则直接导致预期的多官能异恶唑。在不添加亲偶极体的情况下，这些硝基化合物会发生自缩合反应生成相应的呋喃。然而，与 3,4-二苯甲酰呋喃一样，苯甲酰硝基甲烷主要产生异构体 3-苯甲酰-4-硝基-5-苯基异恶唑，其结构已通过结晶分析证实。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)