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CAS No. : | 14527-43-6 | MDL No. : | MFCD03788566 |
Formula : | C6H7NO2S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | XDOKFEJMEJKVGX-UHFFFAOYSA-N |
M.W : | 157.19 | Pubchem ID : | 5003096 |
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 |
---|---|---|
87.6% | With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In dichloromethane; at 0 - 20℃; for 5h; | General procedure: 2.5mmol thiazole-4-carboxyli acid and 2.0mmol alcohol were dissolved in 25mL dichloromethane (DCM) in a dry flask with continuous stirring, followed by the addition of 2.5mmol 3-(3-dimethylaminopropyl) -1-ethylcarbodiimide hydrochloride. When the temperature of the reaction system cooled to 0°C, 0.2mmol 4-dimethylaminopyridine was added dropwise and reacted for 1hat 0°C. Then the temperature was elevated to room temperature for another 4h reaction. The reaction was stopped by adding 25mL saturated NaHCO3 solution and extracted twice with 20mL dichloromethane (2×20mL). The extracted organic layers were first dried by anhydrous Na2SO4, and then filtered and concentrated under vacuum distillation, obtaining the crude products. Finally, the crude products were further purified using column chromatography (ethy lacetate:petroleum ether, 1:5). |
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