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CAS No. : | 92534-69-5 | MDL No. : | MFCD00222738 |
Formula : | C5H5N3O4 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | ANGMMUPJSXUXGY-UHFFFAOYSA-N |
M.W : | 171.11 | Pubchem ID : | 592623 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
83% | for 16 h; Heating / reflux | [0227] To a solution of l-methyl-4-nitro-lH-pyrazole-5-carboxylic acid (2 g, for the synthesis of l-methyl-4-nitro-lH-pyrazole-5-carboxylic acid, see Perevalov, V. P., et. al.; Chem. Het. Compounds 19; 12; 1983; 1326-1330) in methanol (20 mL), was added HCl (g). The resulting solution was allowed to react, with stirring, for 16 h at reflux. The mixture was concentrated to give methyl l-methyl-4-nitro-lH-pyrazole-5- carboxylate as a yellow oil (1.8 g, 83percent). LCMS: 185 (M+H) +. Step 2: Methyl 4-amino-l-methyl-lH-pyrazole-5-carboxylate |
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