PRINS REACTION UNDER MANGANESE DIOXIDE CONTROL: THE SYNTHESIS OF 6-OXA-2-AZABICYCLO[3.2.1]OCTAN-4-ONES FROM TETRAHYDROPYRIDINES AND FORMALDEHYDE Статья Soldatenkov A.T., Polyanskii K.B., Temesgen A.W., Soldatova S.A., Sergeeva N.D., Kolyadina N.M., Lobanov N.N. Mendeleev Communications. Royal Society of Chemistry. Том 11. 2001. С. 27-29