Process for producing 4-carbamoyl-1H-imidazolium-5-olate

摘要

A process is provided for producing 4-carbamoyl-1H-imidazolium-5-olate (I) <IMAGE> I by reacting aminomalonamide H2N-CH(CONH2)2 and formamidine CH(=NH)NH2 compound in a liquid medium comprising alcohol under conditions such that the product I can be obtained in a solid form that is directly recoverable from the medium, free of aminomalonamide and recrystallizable.