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。