2-氧代-2H-吡喃-3-羧酸甲酯
methyl 2-oxo-2H-pyran-3-carboxylate
CAS: 25991-27-9
Molecular Formula: C7H6O4
2-氧代-2H-吡喃-3-羧酸甲酯 - Names and Identifiers
| Name | methyl 2-oxo-2H-pyran-3-carboxylate |
| Synonyms | 3-CARBOMETHOXY-2-PYRONE METHYL 2-PYRONE-3-CARBOXYLATE Methyl 2-oxo-2H-pyran-3-carboxylate methyl 2-oxo-2H-pyran-3-carboxylate METHYL 2-OXO-2 H-PYRAN-3-CARBOXYLATE 2-Oxo-2H-pyran-3-carboxylic acid methyl ester |
| CAS | 25991-27-9 |
| EINECS | 247-397-9 |
| InChI | InChI=1/C7H6O4/c1-10-6(8)5-3-2-4-11-7(5)9/h2-4H,1H3 |
2-氧代-2H-吡喃-3-羧酸甲酯 - Physico-chemical Properties
| Molecular Formula | C7H6O4 |
| Molar Mass | 154.12 |
| Density | 1.1993 (rough estimate) |
| Melting Point | 75-77 °C (lit.) |
| Boling Point | 146-148 °C/0.75 mmHg (lit.) |
| Flash Point | 146-148°C/0.75mm |
| Vapor Presure | 3.37E-05mmHg at 25°C |
| BRN | 1424749 |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4300 (estimate) |
| MDL | MFCD00075443 |
2-氧代-2H-吡喃-3-羧酸甲酯 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 22 - Harmful if swallowed |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 21 |
2-氧代-2H-吡喃-3-羧酸甲酯 - Introduction
methyl, also known as methyl 2-oxopyridine-3-carboxylate, is an organic compound. The following is a description of its nature, use, formulation and safety information:
Nature:
-Appearance: White crystalline solid
-Molecular formula: C7H6O4
-Molecular weight: 154.12g/mol
-Melting point: 61-63 ° C
-Boiling point: 239-240 ° C
Use:
- methyl L is widely used as an intermediate and reagent in organic synthesis.
-It can be used to synthesize various Pyran compounds, and can be used as synthetic drugs, pesticides and spices.
Method:
- methyl L can be obtained by reacting 1,3-dicarbonyl compounds (such as acetone, β-keto acid, etc.) with acetic anhydride or methyl acetate.
-The reaction is usually carried out under alkaline conditions, and commonly used alkali catalysts include tetramethylpyridine.
Safety Information:
- methyl L needs to be less toxic, but still maintain proper laboratory operation and use protective measures.
-Avoid inhalation, skin contact and ingestion during operation.
-When using, pay attention to avoid contact with strong oxidants and strong acids to avoid dangerous reactions.
-Store in a dry, cool place and avoid contact with oxygen and moisture.
Nature:
-Appearance: White crystalline solid
-Molecular formula: C7H6O4
-Molecular weight: 154.12g/mol
-Melting point: 61-63 ° C
-Boiling point: 239-240 ° C
Use:
- methyl L is widely used as an intermediate and reagent in organic synthesis.
-It can be used to synthesize various Pyran compounds, and can be used as synthetic drugs, pesticides and spices.
Method:
- methyl L can be obtained by reacting 1,3-dicarbonyl compounds (such as acetone, β-keto acid, etc.) with acetic anhydride or methyl acetate.
-The reaction is usually carried out under alkaline conditions, and commonly used alkali catalysts include tetramethylpyridine.
Safety Information:
- methyl L needs to be less toxic, but still maintain proper laboratory operation and use protective measures.
-Avoid inhalation, skin contact and ingestion during operation.
-When using, pay attention to avoid contact with strong oxidants and strong acids to avoid dangerous reactions.
-Store in a dry, cool place and avoid contact with oxygen and moisture.
Last Update：2024-04-09 02:00:44
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