反应详情

To a stirred solution of 3-(4,4-dimethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-2-yl)-phenylamine (150 mg, 0.47 mmol) in pyridine (0.74 mg, 0.94 mmol) and dichloromethane (3 mL) at 0° C. was added dropwise a solution of pyridine-3-sulfonyl chloride (100 mg, 0.56 mmol) in dichloromethane (1 mL). The mixture was stirred at room temperature overnight. Thin layer chromatography and LC-MS indicated that 3-(4,4,6-trimethyl-1,2,3,4-tetrahydro-quinolin-2-yl)-phenylamine was consumed completely. The mixture was quenched with water (5 mL) and extracted with dichloromethane (5 mL×2). The combined organic layers were dried over anhydrous sodium sulfate and evaporated. The residue was purified by column chromatography on silica gel to afford pyridine-3-sulfonic acid [3-(4,4-dimethyl-6-trifluoromethyl-1,2,3,4-tetrahydro-quinolin-2-yl)-phenyl]-amide (170 mg, 78.7%) as a white solid. MS (ESI+APCI) M+1=442.3.

1. customwas consumed completely
2. customThe mixture was quenched with water (5 mL)
3. extractionextracted with dichloromethane (5 mL×2)
4. dry with materialThe combined organic layers were dried over anhydrous sodium sulfate
5. customevaporated
6. customThe residue was purified by column chromatography on silica gel