Process for the preparation of cyanoimino-1,3-thiazolidines

摘要

<IMAGE> +TR <IMAGE> cyclized at pH 8 to 9.5 to give cyanoimino-1,3-diazolidine of the formula <IMAGE> (IV) in which R1 and R2 are lower alkyl, X is an acid radical, and A is a metal ion or an equivalent ammonium ion.