Acetyl chloride → N-Formyl-3-[3-(trifluoromethyl)phenoxy]azetidine-1-carboxamide

Participants

Reaction Steps

A mixture of 0.524 g (0.002 mole) of 3-[3-(trifluoromethyl)phenoxy]-1-azetidinecarboxamide and 1.5 ml of formic acetic anhydride (prepared by reacting sodium formate and acetyl chloride in ether at 23°-27° C. for 5.5 hr, filtering and evaporating off the ether) was stirred at room temperature for about 54 hr. The mixture was evaporated to dryness and the residue was partitioned between 7 ml methylene chloride and 2 ml water. The methylene chloride layer was separated, dried over sodium sulfate and evaporated to dryness. The residue was triturated with ether and the mixture subjected to filtration to give a solid white filter cake weighing 0.398 g after drying. The solid was stirred with more ether for 10 minutes and the mixture filtered to give 0.350 g (61%) white powder, m.p. 117.5°-119° C.

Provenance & Evidence