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CAS No. : | 10147-36-1 | MDL No. : | MFCD00007462 |
Formula : | C3H7ClO2S | Boiling Point : | No data available |
Linear Structure Formula : | CH3CH2CH2SO2Cl | InChI Key : | KPBSJEBFALFJTO-UHFFFAOYSA-N |
M.W : | 142.60 | Pubchem ID : | 66279 |
Synonyms : |
|
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 3265 |
Hazard Statements: | H314 | Packing Group: | Ⅱ |
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 |
---|---|---|
89% | With pyridine; at 0 - 30℃; for 6.5h;Inert atmosphere; | To a solution of <strong>[120100-15-4]methyl 3-amino-2-chlorobenzoate</strong> (40 g, 216 mmol) in pyridine (45 mL) stirred at 0C was added a solution of propane-1 -sulfonyl chloride (29.1 mL, 259 mmol) dropwise during 30 min. The reaction mixture was stirred at 30 C for 6 h. After 6 h, the reaction mixture was cooled and 80 mL of water and dichloromethane (100 mL) was added. The organic layer was separated and aqueous layer was extracted with dichloromethane(100 mL x 3). The combined organic layers were dried over Na2SO4, and concentrated. The residue was purified silica gel chromatography and was eluted with Hex/EtOAc (4:1 ) to afford methyl 2-chloro-3- (propylsulfonamido)benzoate. (56g, 89 % yield) as a yellow solid MS: 309 [M+H]+ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
48%Chromat.; 9%Chromat. | With triethylamine; In diethyl ether; at 20℃; for 0.333333h;Sonication; | General procedure: Triethylamine (5.2 mmol) was added to a 10 mL two-neck flask containing 2-methyl-2-propanethiol (5 mmol) dissolved in anhydrous diethyl ether (2 mL). Then propane-1-sulfonyl chloride (5 mmol) was added drop-wise at room temperature. The flask wasfitted with a condenser jointed an anhydrous calcium chloride tube and was placed in anultrasound bath, where the mixture of reactants was exposed to ultrasound irradiation for aspecified period of time (20 min). After the reaction was completed, themixture was pouredinto a separatory funnel and washed with de-ionized water until a neutral pH. The organiclayer was dried over Na2SO4. After removal of the solvent by rotational evaporation, the remaining crude product was analyzed by GC/MS. The desired product was purified bysilica gel column chromatography and eluted by hexane and dichloromethane, and thenwas analyzed by NMR spectroscopy. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
70% | With pyridine; at 50℃; for 2.5h;Inert atmosphere; | To a solution of 3e (44.0 mg, 0.22 mmol) in pyridine (1 mL) was added 1- propanesulfonyl chloride (0.04 mL, 0.33 mmol) under argon, and the mixture was stirred at 50C for 2.5 h. After being quenched with 1 N HC1(aq) (1.0 mL) and water, EtOAc were added, and the layers were separated. The combined organic phases were washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated. The residue was purified by column chromatography on silica gel (EtOAc/hexane, 10:90 to 20:80) to give 6e (49.6 mg, 70%) as a brown solid; ?H NMR (CDC13, 500 MHz) 7.76 (1 H, d, J = 2.3 Hz), 7.13 (1 H, dd, J = 8.6, 2.3 Hz), 6.79 (1 H, d, J = 8.6 Hz), 4.26 (2 H, t, J = 4.6 Hz), 3.85 (2 H, t, J = 4.6 Hz), 3.09-3.06 (2 H, m), 1.92-1.85 (2 H, m), 1.06(3 H, t, J= 7.4 Hz); ?3C NMR (CDC13, 125 MHz) 145.0, 128.1, 125.6, 124.3, 119.2, 113.0, 64.7, 54.0, 44.0, 17.0, 12.9. |
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