4-Chlorobenzenesulfonyl chloride → HCID 54543333, compound

Participants

Reaction Steps

1.00 g of 4-[(8-chloroquinolin-5-yl)carbonyl]-1-ethyl-5-hydroxy-pyrazole, 0.70 g of triethylamine and 0.70 g of 4-chlorobenzenesulfonyl chloride in 15 ml of methylene chloride were stirred at room temperature for 12 hours. The reaction mixture was then poured into aqueous sodium carbonate solution and extracted with ethyl acetate. The combined organic phases were dried and concentrated and the residue was purified by chromatograpy over silica gel.

Provenance & Evidence