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CAS No. : | 186435-66-5 | MDL No. : | MFCD00068842 |
Formula : | C5H7N3O2 | Boiling Point : | 390.4±45.0°C at 760 mmHg |
Linear Structure Formula : | - | InChI Key : | YRLXSZNYIJKRDL-UHFFFAOYSA-N |
M.W : | 141.13 | Pubchem ID : | 135404214 |
Synonyms : |
|
TPSA :Topological Polar Surface Area | - | H-Bond Acceptor Count : | - |
XLogP3 : | - | H-Bond Donor Count : | - |
SP3 : | - | Rotatable Bond Count : | - |
Signal Word: | Warning | Class | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H319 | Packing Group: | N/A |
GHS Pictogram: |
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Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With sodium In methanol; water | Synthesis of 6-amino-2-methoxy-4-pyrimidone, Compound a The protocol for synthesizing compound a in the above schematic diagram was that basically as described by W. Pfleiderer (Chem. Ber., 90: 2272 (1957)). Sodium (15 g, 652 mmol) was dissolved, in small portions, in 200 ml methanol. O-Methylisourea hemisulfate (30.6 g, 248 mmol) and ethyl cyanoacetate (30 g, 265 mmol) were added to the solution. The mixture was stirred at reflux for 4.5 hours (h). The mixture was filtered, and the solid was washed carefully with methanol. The combined filtrates were evaporated to dryness, and the white solid residue was dissolved in 300 ml of hot water. After neutralization with acetic acid to pH 7, the solid was filtered, washed with water, and dried to give 28 g (80percent) of product as a white solid. |
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