反应详情

Under a nitrogen atmosphere, a solution of 4-chlorobenzenethiol (868 mg, 6.00 mmol) in DMF (5 mL) was added to a mixture of sodium hydride (60% dispersion, 240 mg, 6.00 mmol) in DMF (15 mL); the reaction became homogeneous and was stirred for 15 minutes. Solid 1-(5-chloropentyl)-6,7-dimethyl-4-phenoxy-2-propyl-1H-imidazo[4,5-c]pyridine (1.93 g, 5.00 mmol) was added in small amounts, and the reaction was stirred for 1.5 hours. Water (25 mL) was added, and the resulting solution was extracted with ethyl acetate (3×50 mL). The combined extracts were washed with water (5×30 mL) and brine (2×10 mL), dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide a colorless oil, which crystallized overnight. The solid was dried for three hours under high vacuum to provide 2.58 g of 1-[5-(4-chlorophenylsulfanyl)pentyl]-6,7-dimethyl-4-phenoxy-2-propyl-1H-imidazo[4,5-c]pyridine as a white solid.

1. stirringthe reaction was stirred for 1.5 hours
2. extractionthe resulting solution was extracted with ethyl acetate (3×50 mL)
3. washThe combined extracts were washed with water (5×30 mL) and brine (2×10 mL)
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customto provide a colorless oil, which
8. customcrystallized overnight
9. customThe solid was dried for three hours under high vacuum