Thiazoline and thiazolidine ring structures, containing an acid group in the 3-position1 have been synthesized by treating the dithiocarbamic acid derived from glycine or from dl-a- alanine with an a-halogenated ketone'or with chloroacetic acid. 2 We have had occasion to prepare some further examples of thiazoline compounds of this type; in addition, the investigation has been extended to include the preparation of previously undescribed ...
