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US 4,225,719 AGranted
Process for preparing 2-amino-5-formylthiazole and its hydrobromide salt
AssigneeEastman Kodak Company
InventorMark D. Frishberg
Life of this patent
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Abstract
Process for the preparation of 5-formyl-2-aminothiazole hydrobromide and 2-amino-5-formylthiazole which comprises reacting bromomalonaldehyde and thiourea in the substantial absence of acid or base to form the 5-formyl-2-aminothiazole hydrobromide, and then treating the same with base to form the aminothiazole.
Claims4
Process for the preparation of 5-formyl-2-aminothiazole hydrobromide which comprises reacting bromomalonaldehyde and thiourea in the substantial absence of added acids or bases.
Dependencies are inferred from the claim text.