4-(Trifluoromethyl)phenyl isocyanate → HCID 18537594, compound

Participants

Reaction Steps

To a mixture of 5-[4-[6-[2-(4-aminophenyl)ethoxy]-1-methyl-1H-benzimidazol-2-ylmethoxy]benzyl]thiazolidine-2,4-dione (0.4 g) and N,N-dimethylformamide (10 ml) was added α,α,α-trifluoro-p-tolyl isocyanate (0.17 g) and the mixture was stirred at room temperature for 2 hours and allowed to stand overnight. The reaction mixture was partitioned between ethyl acetate and water. The extract was washed with saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate and then concentrated. To the residue was added a mixture of ethyl acetate and diethyl ether (1:1). The precipitate was isolated by filtration and washed with diethyl ether to afford the title compound (0.4 g, mp 145-147° C.).

Provenance & Evidence