Pyrrolidine → HCID 20335509, compound

Participants

Reaction Steps

A mixture of 202 g. of 3-fluoroimidazo[1,2-a:3,4-a']diquinolin-15-ium p-toluenesulfonate, 600 ml. of N-methyl-2-pyrrolidinone and 111 ml. of pyrrolidine is heated at reflux (158 C. ) for 45 minutes, then cooled to 0°-5° C. The resulting precipitate of 3-(1-pyrrolidinyl)-imidazo[1,2-a:3,4-a']diquinolin-15-ium p-toluenesulfonate is collected by filtration, washed with ethyl acetate, then with water, and dried; m.p. 228°-237° C.

Provenance & Evidence