Identification | Back Directory | [Name]
2-AMINO-OXAZOLE-5-CARBOXYLIC ACID ETHYL ESTER | [CAS]
113853-16-0 | [Synonyms]
ETHYL 2-AMINOOXAZOLE-5-CARBOXYLATE ETHYL 2-AMINO-5-OXAZOLECARBOXYLATE 5-(Ethoxycarbonyl)-1,3-oxazol-2-amine ETHYL 2-AMINO-1,3-OXAZOLE-5-CARBOXYLATE Ethyl2-amino-1,3-oxazole-5-carboxylate95% Ethyl 2-amino-1,3-oxazole-5-carboxylate 98% 2-AMINO-OXAZOLE-5-CARBOXYLIC ACID ETHYL ESTER 5-Oxazolecarboxylicacid, 2-aMino-, ethyl ester 5-(Ethoxycarbonyl)-1,3-oxazol-2-amine, 2-Amino-5-(ethoxycarbonyl)-1,3-oxazole | [Molecular Formula]
C6H8N2O3 | [MDL Number]
MFCD06657433 | [MOL File]
113853-16-0.mol | [Molecular Weight]
156.14 |
Chemical Properties | Back Directory | [Melting point ]
151-153 | [Boiling point ]
282.9±32.0 °C(Predicted) | [density ]
1.278±0.06 g/cm3(Predicted) | [storage temp. ]
Keep in dark place,Inert atmosphere,2-8°C | [form ]
solid | [pka]
3.39±0.10(Predicted) | [color ]
Off white | [InChI]
InChI=1S/C6H8N2O3/c1-2-10-5(9)4-3-8-6(7)11-4/h3H,2H2,1H3,(H2,7,8) | [InChIKey]
UHUDJKCNXFBBHU-UHFFFAOYSA-N | [SMILES]
O1C(C(OCC)=O)=CN=C1N |
Hazard Information | Back Directory | [Synthesis]
GENERAL STEPS: Ethyl 2-chloro-3-oxopropionate (13) (4.48 g, 29.8 mmol, 1.00 equiv) and urea (1.79 g, 29.8 mmol, 1.00 equiv) were dissolved in 40 mL of water. The reaction mixture was stirred at 100 °C for 1 hour. After completion of the reaction, the light yellow suspension was cooled to room temperature and neutralized with saturated NaHCO3 solution. Subsequently, the reaction mixture was extracted with ethyl acetate (3 x 50 mL). The organic layers were combined, dried with anhydrous Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by fast liquid chromatography (silica gel, n-hexane/ethyl acetate = 1/2) to afford ethyl 2-aminooxazole-5-carboxylate (14) (2.40 g, 15.4 mmol, 51.3% yield). | [References]
[1] European Journal of Medicinal Chemistry, 2017, vol. 126, p. 754 - 761 |
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