Process for ring cleavage of thiazolidine derivatives
Process for the hydrolytic ring cleavage of thiazolidine derivatives to give 2-aminomercaptan derivatives and carbonyl compounds, which comprises bringing an aqueous solution of the thiazolidine derivative into contact with an acidic cation exchanger in the H+form, giving a solution L1which contains the carbonyl compound and eluting the cation exchanger with a suitable eluent, giving a solution L2which contains the 2-aminomercaptan derivative.