Potassium Carbonate → 5-nitro-1-(2-pyrrolidin-1-ylethyl)-1H-indole

Participants

Reaction Steps

A reaction mixture of 16.22 g (0.1 mol) of 5-nitroindole, 35 g (0.205 mol) of 1-(2-chloroethyl)pyrrolidine hydrochloride, and 51 g (0.369 mol) of potassium carbonate in 500 mL of DMF is stirred for 48 hours at ambient temperature and then filtered. The filtrate is evaporated down, the residue dissolved in dichloromethane, and dried over sodium sulfate. The desiccant is filtered off and the filtrate is evaporated down. Yield: 25 g (96.3% of theory); C14H17N3O2 (M=259.31); calc.: molecular ion peak (M+H)+: 260; found: molecular ion peak (M+H)+: 260; Rf value: 0.65 (silica gel, dichloromethane/methanol/ammonia (90:10:1)).

Provenance & Evidence