“…Se-C. Ammonium dithiocarbamates condense with the glycidic esters 38 to give 2-thiono-3-substituted-5-(hydroxyalkyl)-4-thiazolidinones (39) which are readily dehydrated in refluxing acetic acid to 2-thiono-3-substituted-5-alkylidene-4-thiazolidinones28 (40).…”