IONIZATION OF ORGANIC COMPOUNDS: V. THIOLACTAMS IN SULPHURIC ACID

Abstract
The ionization in aqueous sulphuric acid of thiolactams consisting of five-, six-, and seven-membered rings has been studied. With increasing concentration of acid the ionization ratio increases more rapidly than h0. A possible explanation involving the hydration of the thio-lactam is given. Changes in the basicity of thiolactams with ring size parallel changes previously found for lactams.