Большое спасибо.
Good,R.H.; Jones,G.;
Syntheses with isoxazoles; the production of an isoxazolo[2,3-a]pyridinium salt, and the photochemical conversion of isoxazole-3-carboxylates into oxazole-2-carboxylates
Journal of the Chemical Society [Section] C: Organic;
1971; 1196 - 1198;
Код: Выделить всё
http://dx.doi.org/10.1039/j39710001196The synthesis of oxazolo[3,2-a]pyridinium salts
Journal of the Chemical Society [Section] C: Organic;
1970; 1938 - 1945;
Код: Выделить всё
http://dx.doi.org/10.1039/j39700001938