Hydrochloric Acid → Methyl 5-amino-1,3-thiazole-4-carboxylate

Participants

Reaction Steps

Aqueous 3N HCl (1 mL) was added to a solution of methyl 5-(diphenylmethyleneamino)thiazole-4-carboxylate (1.22 g, 3.81 mmol) in THF (5 mL). The reaction mixture was stirred for 1 h and the white solid which had formed was isolated by filtration to give methyl 5-aminothiazole-4-carboxylate (0.527 g, 2.72 mmol, 71%). Retention time (min)=0.422, method [7], MS (ESI) 159.0 (M+H).

Provenance & Evidence