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CAS No. : | 3270-97-1 | MDL No. : | MFCD02091088 |
Formula : | C5H8N4O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | OSBMJXWHJWWZJP-UHFFFAOYSA-N |
M.W : | 140.14 | Pubchem ID : | 816925 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
84% | for 44 h; Reflux | To a solution of 9.2 g (0.40 mol) sodium in 320 ml methanol were added 28.9 g (0.20 mol) 2,4-diamino-6-chloropyrimidine. The mixture was heated under reflux with stirring for 44 h. After the reaction was ended the precipitated NaCl was separated off and the solution was concentrated to dryness. The residue in 300 ml ethanol was heated to boiling and filtered hot. The product precipitated out of the filtrate on standing overnight. Recrystallization of the mother liquor likewise afforded product. After drying, 6-methoxy-2,4-diaminopyrimidine was obtained as a white solid (58.8 g, 84percent). m.pt.: 166-169° C. 1H-NMR (300 MHz, d6-DMSO): δ=3.18 (s, 3 H, 6-OMe), 5.06 (s, 1H, 5-H), 5.94 (s, 2 H, NH2), 6.05 (s, 2 H, NH2). 13C-NMR (125 MHz, d6-DMSO): δ=52.8 (6-OMe), 76.1 (5-C), 163.3 (2-C), 166.3 (4-C), 170.8 (6-C). |
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