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ChemicalBook CAS DataBase List 8H-INDENO[1,2-D][1,3]THIAZOL-2-AMINE
85787-95-7

8H-INDENO[1,2-D][1,3]THIAZOL-2-AMINE synthesis

5synthesis methods
-

Yield:85787-95-7 63%

Reaction Conditions:

Stage #1: inden-1-one;thioureawith iodine in ethanol; for 8 h;Reflux;
Stage #2: with sodium hydroxide

Steps:

General Method I. Preparation of Thiazoles

General procedure: Thiourea (17 mmol)was added to a solution of substituted ketones (6 mmol) in 30 ml ofabsolute ethanol. The mixture was refluxed for 8 hours, which resultedin 2-aminothiazole hydrobromide salts. The 2-aminothiazolewas obtainedby treating the hydrobromide salt with 2M NaOH (5 ml) and extractingwith ethyl acetate. The crude residue was concentrated, reconstitutedin a methanol-water mixture (99:1), treated with charcoal, andrecrystallized.

References:

Coleman, Nichole;Brown, Brandon M.;Oliván-Viguera, Aida;Singh, Vikrant;Olmstead, Marilyn M.;Valero, Marta Sofia;K?hler, Ralf;Wulff, Heike [Molecular Pharmacology,2014,vol. 86,# 3,p. 342 - 357]