Ethanol → HCID 15009009, compound

Participants

Reaction Steps

60 ml (0.60 mol) of 10N sodium hydroxide solution are added dropwise to a suspension containing 57 g (0.30 mol) of 4-carbamoylmercaptomethyl-2(3H)-thiazolone [compound of the formula (Ib)] in 150 ml of water and 90 ml of ethanol under stirring while bubbling an inert gas through the mixture. After 5 minutes, 17.5 g (0.33 mol) of acrylnitrile are added dropwise to the resulting solution at 25° to 30° C. The mixture is stirred for an additional 4 hours, then filtered to obtain a sharply clear solution which is then acidified by adding 27 ml of glacial acetic acid. The crystalline precipitate is filtered off at 15° to 20° C., washed with water and then with isopropanol and dried to give 45.8 g (76.5%) of the named compound, m.p.: 108°-111° C. The active ingredient content of the substance is 99.6%.

Provenance & Evidence