p-Toluenesulphonyl cyanide → 3-(3-Chlorobenzyl)-5-[(4-methylphenyl)sulphonyl]-1,2,4-thiadiazole

Participants

Reaction Steps

13.00 g (52.6 mmol) of 5-(3-chlorobenzyl)-1,3,4-oxathiazol-2-one and 10.50 g (55.2 mmol) of tosyl cyanide are stirred in 15 ml of 1,2-dichlorobenzene at 160° C. for 1 h. Subsequently, the reaction mixture is cooled and purified by column chromatography. 11.2 g of product are obtained (93.3% purity, 54.5% yield).

Provenance & Evidence