二甲基乙酰基乙酰胺
N,N-Dimethylacetoacetamide
CAS: 2044-64-6
Molecular Formula: C6H11NO2
二甲基乙酰基乙酰胺 - Names and Identifiers
二甲基乙酰基乙酰胺 - Physico-chemical Properties
| Molecular Formula | C6H11NO2 |
| Molar Mass | 129.16 |
| Density | 1.067 g/mL at 25 °C |
| Melting Point | -55 °C |
| Boling Point | 105°C(lit.) |
| Flash Point | 252°F |
| Water Solubility | hydrolysis SLOWLY |
| Solubility | H2O: soluble |
| Vapor Presure | 19.84hPa at 25℃ |
| Appearance | clear liquid |
| Color | APHA: ≤350 |
| BRN | 1755038 |
| pKa | 12.82±0.46(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | n20/D 1.447 |
二甲基乙酰基乙酰胺 - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3082 9 / PGIII |
| WGK Germany | - |
| RTECS | AK4035000 |
二甲基乙酰基乙酰胺 - Reference Information
| LogP | 0.91 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | N,N-dimethylacetoacetamide is an organic intermediate that can be used to prepare thioamide compounds. As important thiocarboxylic acid derivatives, thioamides have attracted much attention in pharmaceutical synthesis, chemical engineering and related fields. Thioamides and their derivatives have a wide range of applications in analysis, materials, and electrochemistry, not only for the production of polymerization inhibitors, catalysts, stabilizers, pesticides, etc., but also for the production of pharmaceutical raw materials, vulcanizing agents, cross-linking reagents, collectors, etc. |
| Application example | preparation of 3-anilino-n, n-dimethyl-3-oxosubunit thiopropionamide: add 1.62g of phenyl isothiocyanate with a purity of 98%, 1.38g of potassium carbonate with a purity of 99%, 1.29g of N,N-dimethylacetoacetamide with a purity of 98% to 30ml of absolute ethanol with a purity of 99.7%, stir at room temperature for 30min, heat the system to reflux, and stir at room temperature for 1.8h. After completion of the reaction, ethanol was distilled off, after cooling, 10% dilute hydrochloric acid (30ml) was added, and the resulting precipitate was stirred, filtered, washed with water, and dried under vacuum to obtain 3-anilino-n, n-dimethyl-3-oxosubunit thiopropionamide in 88.6% yield (based on N,N-dimethylacetoacetamide). |
Last Update：2024-04-10 22:29:15
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View History
二甲基乙酰基乙酰胺
[4-(trifluoromethoxy)phenyl]hydrazine hydrochloride
AKOS USSH-0166
4-[(6-Acryloxy)hexyloxy]phenol
1-氨基吡啶鎓碘化物
6-HYDROXYDOPAMINE HYDROCHLORIDE
Methyl (7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonate
2,7-二氮杂螺[4.5]-1-癸酮盐酸盐
FULLY PROTECTED DEOXYNUCLEOTIDE DIMER D( TPGP)
4-NONYLPHENOL TETRAETHOXYLATE, MIXTURE OF NONYLISOMERS
[4-(trifluoromethoxy)phenyl]hydrazine hydrochloride
AKOS USSH-0166
4-[(6-Acryloxy)hexyloxy]phenol
1-氨基吡啶鎓碘化物
6-HYDROXYDOPAMINE HYDROCHLORIDE
Methyl (7,7-dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonate
2,7-二氮杂螺[4.5]-1-癸酮盐酸盐
FULLY PROTECTED DEOXYNUCLEOTIDE DIMER D( TPGP)
4-NONYLPHENOL TETRAETHOXYLATE, MIXTURE OF NONYLISOMERS