Sodium Hydroxide → 4-[(Morpholin-4-yl)methyl]-1-phenylpyrazolidin-3-one

Participants

Reaction Steps

A solution of 4-morpholinomethyl-1-phenylpyrazolidin-3-imine (29g) in dilute hydrochloric acid (120 ml of 2N) was boiled under reflux for 4 hours. The solution was cooled, neutralised with sodium hydroxide and extracted with chloroform. The chloroform extract was dried and evaporated to dryness. The solid residue was recrystallized from petroleum ether (boiling point 100°-120° C) as colourless plates (melting point 143°-144° C).

Provenance & Evidence