Reactivity of 4‐azido‐ and 4‐amino‐6‐methyl‐2H‐pyran‐2‐one. Preparation of 1‐(6‐methyl‐2‐oxopyran‐4‐yl)‐1,2,3‐triazoles and 5‐oxopyrano[4,3‐b]pyridines | Publicación