Aluminum(III) Chloride → N-(5-Sulfanyl-1,3-thiazol-2-yl)methanesulfonamide

Participants

Reaction Steps

To a mixture of aluminum chloride (510 mg.) and dried toluene (15 ml.) was added 2-methanesulfonamido-5-benzylthiothiazole (560 mg.) over 5 minutes at 110° C. with stirring, and the mixture was further stirred for 1 hour at the same temperature. After the reaction, toluene was removed by decantation. To the residue was added a mixture of water (20 ml.) and methylene chloride (20 ml), and the mixture was stirred for 30 minutes. Thus obtained insoluble material was collected by filtration, washed with water and then dried to give 2-methanesulfonamidothiazole-5-thiol (120 mg.), mp 185° to 192° C. (dec.).

Provenance & Evidence