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CAS No. : | 2922-45-4 | MDL No. : | MFCD08690712 |
Formula : | C5H6N2O2S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | NKFLEFWUYAUDJV-UHFFFAOYSA-N |
M.W : | 158.18 | Pubchem ID : | 232710 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-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 |
---|---|---|
91% | With ammonia; In methanol; dichloromethane; at 20℃; for 0.833333h; | Example 79; N-(6-(2-(pyridine-5-sulfonamido)pyrimidin-4-yl)benzo[d]thiazol-2-yl)acetamide; Step 1. Pyridine-3 -sulfonamide; Pyridine-3-sulfonyl chloride HCl (647.2 mg, 3.023 mmol) was suspended in DCM (9.0 mL) and NH3 (5 mL, 7N in MeOH, 35 mmol) was added. The reaction was stirred at RT under nitrogen for 50 minutes and then filtered, and the solid was washed with DCM. The filtrate was concentrated and dried under high vacuum to provide pyridine-3 -sulfonamide (477 mg , 91percent yield). MS (ESI pos. ion) m/z: 159(MH+). Calculated exact mass for C5H6N2O2S: 158. |
With ammonia; In acetone; at 0 - 20℃; for 3h; | Preparation 28; To a suspension of <strong>[42899-76-3]3-pyridinesulfonyl chloride hydrochloride</strong> (5.00 g) in acetone (8.5 ml) was added ammonia aqueous solution (28percent, 8.5 ml) at 00C dropwise and stirred at room temperature for 3 hours. The solution was evaporated and poured into water (ca. 10 ml), ethyl acetate (100 ml) and tetrahydrofuran (100 ml). The organic layer was washed with brine twice and the aqueous layer was extracted with ethyl acetate (90 ml) and methanol (10 ml). The combined organic layer was dried over magnesium sulfate, evaporated and crystallized in hexane and ethyl acetate to give 3-pyridinesulfonamide (3.45 g) .(+)ESI-MS (m/z): 159 (M+H)+ |
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