Ethylamine → 5-{[3-(Ethylamino)-4-nitrophenyl]methylidene}-1,3-thiazolidine-2,4-dione

Participants

Reaction Conditions

Reaction Steps

5-(3-Fluoro-4-nitro-benzylidene)-thiazolidine-2,4-dione (200 mg, 0.75 mmol, 1 eq.), was dissolved in DME (6 mL) and TEA (208 μL, 1.5 mmol, 2 eq.) and a solution of ethylamine (2 eq.) was added. The reaction mixture was shaken at 60° C. over night. The solvent was removed in vacuo and residue dissolved in ethyl acetate and washed with 10% ammonium chloride aqueous solution. The organic layer was dried on Na2SO4 and the solvent evaporated to give the corresponding aniline derivative as either red oil, which was used for the next step without further purification.

Provenance & Evidence