Methane → HCID 19704698, compound

Participants

Reaction Steps

1.8 g (6.2 mmol) N-(2,4-dichlorophenyl)tetrahydro-4H-1,3,4-oxadiazine-4-carbothioamide was dissolved in 30 mL toluene and 1 mL triethylamine in the presence of a small quantity of activated charcoal at 0°-5° C. 3.49 g (6.81 mmol) phosgene as 20% solution in 30 mL toluene was added dropwise over 1.5 h. The reaction mixture was then left to warm up to room temperature and stirred overnight. The activated charcoal was removed by filtration and the solvent evaporated in vacuo. The desired product was isolated after chromatography on silica gel.

Provenance & Evidence