A novel reaction has been found between oxazolidinethione and bromoacetyl bromide to afford N-substituted 2,4-thiazolidinediones through an intramolecular nucleophilic substitution reaction. Interestingly a step of elimination was carried out in trisubstituted oxazolidinethiones forming a double bond. (c) 2005 Elsevier Ltd. All rights reserved.
Rearrangement of 5-phenylthiazolidine-2,4-diones to chiral α-ketoamides via α-elimination