Procedure of obtaining 1 - ((5- (p. Nitrofenil) furfuriliden) amino) hidantoin and its sodium salt. (Machine-translation by Google Translate, not legally binding)

摘要

Process for obtaining 1 - [(5- (p.nitrophenyl) furfurylidene) amino] hydantoin and its sodium salt, characterized in that cyclohexanone semicarbazone is reacted with an ethyl halogenacetate in a suitable solvent in the presence of a hydrochloric acid acceptor. Obtaining cyclohexanone aminohydantoin which is reacted dissolved in an inorganic acid diluted with 5 (p.nitrophenyl) furfural dissolved in dimethylformamide or tetrahydrofuran, obtaining as a reaction product 1 - [(5-p.nitrophenyl) furfurylidene) amino] hydantoin, the which is subsequently salified. (Machine-translation by Google Translate, not legally binding)