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CAS No. : | 519055-62-0 | MDL No. : | N/A |
Formula : | C11H6BrCl2NO3S2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | WWONFUQGBVOKOF-UHFFFAOYSA-N |
M.W : | 415.11 | Pubchem ID : | 10160238 |
Synonyms : |
LY 573636
|
Chemical Name : | N-((5-Bromothiophen-2-yl)sulfonyl)-2,4-dichlorobenzamide |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
59% | In a round-bottom flask under N2 were introduced respectively 2,4-dichlorobenzoic acid (270 mg, 1.4 mmol), anhydrous THF (30 mL),DMF (4 drops) and oxalyl chloride (470 L, 5.6 mmol). The reaction mixture was stirred overnight at room temperature and then concentrated under reduced pressure. In a round-bottom flask under N2 were introduced respectively 5-bromothiophene-2-sulfonamide (300mg, 1.2 mmol), EtOAc (10 mL), Et3N (300 L, 3.2 mmol) and DMAP (2mg, 0.02 mmol). A solution of 2,4-dichlorobenzoyl chloride, previously prepared in dried toluene (10 mL), was added via a syringe over 15min. The mixture was stirred for 5 h at 55 C under N2, cooled to room temperature and quenched with 0.5 M aqueous HCl solution (40 mL).The resulting mixture was extracted with EtOAc (3 × 600 mL). The combined organic layers were dried over anhydrous MgSO4, filteredand concentrated under reduced pressure. The crude residue was purifiedby silica gel chromatography using DCM as eluent to afford 1k.Yield: 300 mg (59%); yellow solid; mp 114-116 C.1H NMR (400 MHz, CDCl3): = 9.07 (br s, 1 H), 7.74 (d, J = 6.0 Hz, 1 H),7.73 (d, J = 1.6 Hz, 1 H), 7.45 (d, J = 1.9 Hz, 1 H), 7.36 (dd, J = 8.4, 2.0 Hz,1 H), 7.13 (d, J = 4.1 Hz, 1 H).13C NMR (100 MHz, CDCl3): = 162.2, 139.5, 138.6, 136.0, 132.5,131.9, 130.7, 130.5, 129.3, 128.2, 123.3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
15%; 65% | With dmap; 2-chloro-1-methyl-pyridinium iodide; triethylamine; In dichloromethane; at 20℃; for 1h; | DCM (2.0 mL) was added to a 20 mL vial containing DMAP (3.81 mg, 0.031 mmol), 2-chloro-1-methylpyridin-1-ium iodide (0.191 g, 0.748 mmol), 2,4-dichlorobenzoic acid (0.119 g, 0.623 mmol), 5-bromothiophene-2-sulfonamide (0.302 g, 1.25 mmol) at rt. After stirring for 5 min, TEA (0.261 ml, 1.869 mmol) was slowly added to the reaction mixture. The reaction was stirred at rt for 1 h. The reaction solvent was concentrated under vacuum and the crude residue was taken up in ethyl acetate, washed with 1N HCl (1 mL), water, and brine. The ethyl acetate layer was separated, dried (Na2SO4), filtered and concentrated. The crude material was purified by silica gel flash column chromatography eluting with ethyl acetate in hexane from 0 to 30% to give the desired product (0.168 g, 65%) as colorless crystals: 1H NMR (499 MHz, CDCl3) δ 7.73 (d, J = 4.1 Hz, 1H), 7.71 (d, J = 8.5 Hz, 1H), 7.45 (d, J = 1.9 Hz, 1H), 7.36 (dd, J = 8.5, 1.9 Hz, 1H), 7.14 (d, J = 4.1 Hz, 1H). |
A414391[ 519055-63-1 ]
Sodium ((5-bromothiophen-2-yl)sulfonyl)(2,4-dichlorobenzoyl)amide
Reason: Free-salt