Diethyl aMinoMalonate hydrochloride (AMinoMalonaMid)
Diethyl aminomalonate hydrochloride
CAS: 13433-00-6
Molecular Formula: C7H14ClNO4
Diethyl aMinoMalonate hydrochloride (AMinoMalonaMid) - Names and Identifiers
Diethyl aMinoMalonate hydrochloride (AMinoMalonaMid) - Physico-chemical Properties
| Molecular Formula | C7H14ClNO4 |
| Molar Mass | 211.64 |
| Melting Point | 165-170°C (dec.)(lit.) |
| Boling Point | 200°C at 760 mmHg |
| Flash Point | 52.3°C |
| Water Solubility | soluble |
| Solubility | Chloroform, DMSO, Water |
| Vapor Presure | 0.332mmHg at 25°C |
| Appearance | White powder |
| Color | White to slightly yellow |
| BRN | 3568037 |
| Storage Condition | Inert atmosphere,2-8°C |
| Sensitive | Hygroscopic |
| MDL | MFCD00012510 |
| Use | Used as pharmaceutical intermediates for the synthesis of pyrimidine heterocyclic compounds |
Diethyl aMinoMalonate hydrochloride (AMinoMalonaMid) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29224995 |
| Hazard Note | Irritant |
Diethyl aMinoMalonate hydrochloride (AMinoMalonaMid) - Reference Information
| Overview | Diethyl aminomalonate hydrochloride is an organic intermediate, which can be obtained from diethyl hydroxymethyl nitromalonate through two steps Preparation. |
| Uses | Diethyl aminomalonate hydrochloride is used in the synthesis of N-(aminopropyl)-N-aroyl aminopropyl substituted thiazolo [5,4-d] pyrimidinones and their analogs are used as kinesin spindle protein inhibitors and potential anti-cancer agents. Diethyl aminomalonate hydrochloride can be used as a pharmaceutical intermediate for the synthesis of pyrimidine heterocyclic compounds. |
| Preparation | At 5-10°C, ammonia (6 ml,25%) is added to diethyl hydroxymethyl nitromalonate (1g,4.25 mmol) in a solution of 6 ml ethanol. Continue stirring the mixture at this temperature for one hour, and then rise to room temperature. The resulting solution is evaporated under reduced pressure to dryness. The residue was washed with propan-2-ol and dried in air to obtain 0.7g of intermediate II (yield 92.2%) with a melting point of 149-150°C. After recrystallization from ethanol, Ir/C(0.5g,0.025 mol,5%) with a particle size of 50-100 μm was added at a melting point of 152 -153 ℃ to a solution of 2.05g II ammonium salt and 30ml of propan-2-ol with a pH value of 7.0 hydrogen chloride. The mixture was kept at 50-55 ℃ and bubbled until hydrogen absorption stopped. The reaction mixture was filtered to remove the catalyst, and the filtrate was poured into the HCl aqueous solution. The solution was evaporated to dryness under reduced pressure. The crystallization residue of salt III was washed with prop-2-ol, and then dried in air to obtain 1.66g of diethyl aminomalonate hydrochloride (~ 95%) with a melting point of 164-165 ℃. |
Last Update：2024-04-10 22:29:15
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