The synthesis of a series of allyl substituted 3-thiazoline-carboxylates wa
s carried out from the corresponding thiazolidines, by a MnO2-mediated oxid
ation reaction under mild conditions. The reaction was chemoselective towar
ds the amine-imine oxidation and was also regioselective, affording the uns
aturation at the 3-position of the heterocycle. (C) 2001 Published by Elsev
ier Science Ltd.