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CAS No. : | 6633-61-0 | MDL No. : | MFCD03788562 |
Formula : | C5H6N2O2S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | UJNNCGWBDJHCEM-UHFFFAOYSA-N |
M.W : | 158.18 | Pubchem ID : | 238005 |
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 |
---|---|---|
49% | With ammonia; In water; at 50℃; for 72h; | Example 12 (E)-2-[2-(3-Chloro-4-methanesulfonyl-phenyl)-2-cyclohexyloxyimino-acetylamino]-thiazole-5-carboxylic acid amide 2-Amino-thiazole-5-carboxylic acid methyl ester (333 mg, 2.11 mmol) and a solution of concentrated ammonium hydroxide (4.2 mL) were combined and heated to 50 C. After stirring 72 h, the mixture was cooled, filtered and the filtrate was concentrated in vacuo to half the original volume. The precipitate was collected by filtration in vacuo and washed with water. Drying in vacuo afforded the desired product, 2-amino-thiazole-5-carboxylic acid amide (148 mg, 49%) as a tan solid that was used without further purification: LC-MS (ESI) m/e calcd for C4H5N3OS [M+] 103.02, found 286.9 [2M+H+]; H1-NMR (400 MHz, CD3OD) delta=7.59 (1H, s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
44% | A mixture of 2. 4g of g-2, water 20ml and 1.75g of thiourea was refluxed for 2 hours. The mixture was cooled to room temperature and 0.25g of norit was added and filtered. A solution of 2. 5N sodium hydroxide was added to the filtrate until neutral pH. The filtration yielded 1.23g (44%) of 2-aminothiazole-5-carboxylic acid methyl ester (g-3). |
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