RING TRANSFORMATIONS OF 2-(2-OXOPROPYL-2-PHENYLETHYLTHIO, 2-OXO-2-PHENYLETHYLTHIO)OXAZOLO[4,5-B]PYRIDINE IN THE REACTION WITH N-CONTAINING NUCLEOPHILES
M. Tosheva et V. Kalcheva, RING TRANSFORMATIONS OF 2-(2-OXOPROPYL-2-PHENYLETHYLTHIO, 2-OXO-2-PHENYLETHYLTHIO)OXAZOLO[4,5-B]PYRIDINE IN THE REACTION WITH N-CONTAINING NUCLEOPHILES, Synthetic communications, 24(4), 1994, pp. 495-511
2,3-Dihydro-2-(3-hydroxy-2-piridylimino)-thiazoles 7, 9a-f and 11 are
synthesized by ring transformation of 2-(2-oxo-propylthio)oxazolo[4,5-
b] pyridine (2) and 2-(2-oxo-2-phenylethylthio)oxazolo-[4,5-b]pyridine
(3) in reactions with amines, hydrazine or ammonium acetate.