The tautomers, 4-hydroxy-5,6-dihydro-6,6-dimethyl-2(1H)-pyridinethione (1) and
6,6-dimethyl-2-thioxo-4-piperidone (2) resp., and
4-hydroxy-5,6-dihydro-6,6-dimethyl-2(1H)-pyridone (9) and
6,6-dimethyl-2,4-piperidinedione (10) resp. were synthesized by hydrolysis of
4-amino-5,6-dihydro-6,6-dimethyl-2(1H)-pyridinethiones (4, 5) and-ones (11,
12).1, 2 and9, 10 undergo an aminolysis in amines to the co... hiện toàn bộ