反应详情

Methyl 10-(4-chlorobenzenesulphonamido)decanoate (0.85 g, 0.0023 mol) was treated with 5N sodium hydroxide (15 ml) in ethanol (25 ml) at room temperature for 1 hour. The pH was adjusted to 1 with dilute hydrochloric acid and the precipitated solid was filtered off and recrystallised (isopropanol-ether) to give the title compound (0.17 g, m.p. 192°-4° C.).

1. filtrationthe precipitated solid was filtered off
2. customrecrystallised (isopropanol-ether)