Reaction of Thioaldehydes with 5-Alkoxyoxazoles: A Route to 3-Thiazolines
Generation of thioaldehydes 4 by photolysis of 15 or by thermolysis of 9 in the presence of oxazoles 2 or 3 affords 7 or 8, respectively.Thermally generated thioacetone reacts similarly to give 16 and 17.A mechanism involving an unstable Diels-Alder adduct 5 is most likely.