Ethyl cyanoformate → Ethyl 3-(4-chloro-2-methoxyphenyl)-1,2,4-thiadiazole-5-carboxylate

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-(4-chloro-2-methoxyphenyl)-1,3,4-oxathiazol-2-one (1.32 g, 5.42 mmol) in 1,2-dichlorobenzene (5 ml) was added ethyl cyanoformate (2.20 ml, 21.67 mmol). The resulting reaction mixture was refluxed for 24 h at 150° C. After the completion of the reaction (TLC monitoring), the reaction mass was as such (direct loading) purified through flash chromatography (100-200 M silica, 5% EtOAc-Hexane) to get the desired product (0.31 g, 19%). LCMS: 299.29 (M+H)+, 98.99%.

Provenance & Evidence