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CAS No. : | 22952-32-5 | MDL No. : | MFCD00052959 |
Formula : | C7H6Cl2O3S | Boiling Point : | - |
Linear Structure Formula : | CH3OClC6H3SO2Cl | InChI Key : | FCJGLIMDVOTBLO-UHFFFAOYSA-N |
M.W : | 241.09 | Pubchem ID : | 2734272 |
Synonyms : |
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Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 3261 |
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 |
---|---|---|
61% | EXAMPLE 49 5-Chloro- 2-methoxy-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide 5-Chloro-2-methoxy-N-(4-bromo-3-methyl-5-isoxazolyl)benzenesulfonamide was prepared from <strong>[33084-49-0]5-amino-4-bromo-3-methylisoxazole</strong> and 5-chloro-2-methoxybenzenesulfonyl chloride according to the procedures described in Example 5. The crude product was purified by recrystallization from ethyl acetate/hexanes to give a crystalline solid, m.p. 180-184 C., yield 61%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
77% | With pyridine; In dichloromethane; at 20℃; | Step 2: A solution of <strong>[341988-36-1]2,3-dihydro-1H-indole-6-carboxylic acid methyl ester</strong> (1.34 g, 7.6 mmol) in dichloromethane (66 ml) and pyridine (1.6 ml) was treated with 5-chloro-2-methoxy-benzenesulfonyl chloride (1.83 g, 7.6 mmol, 1 equiv.). The mixture was stirred at room temperature overnight, then diluted with dichloromethane and washed with water. The organic phase was dried with Na2SO4 and evaporated. The residue was purified by flash chromatography (heptane/ethyl acetate gradient), yielding 1-(5-chloro-2-methoxy-benzenesulfonyl)-<strong>[341988-36-1]2,3-dihydro-1H-indole-6-carboxylic acid methyl ester</strong>, 2.2 g (77percent yield). MS (ISP): m/e=382.1 (M+H+.), deltaH (300 MHz; CDCl3) 7.99 (1H, d), 7.93 (1H, s), 7.61 (1H, d), 7.37 (1H, dd), 7.11 (1H, d), 6.77 (1H, d), 4.04 (2H, t), 3.83 (3H, s), 3.56 (3H, s), 3.02 (2H, t). |