%0 Journal Article %T Comparative quantum-chemical analysis of the reactivity of 1-phenilbut-2-en-3-tyon and 2-(N-pirrolidinil)pent-2-en-4-tyon as heterodiens in the Diels - Alder reaction %A Ovchinnikov, K.L. %A Karpov, I.D. %A Starostin, M.V. %A Kolobov, A.V. %K unsaturated thiocarbonyl com-pounds, the Diels-Alder hetero-reaction, thiopyranes synthesis, quantum-chemical modelling, AM1 method %J From Chemistry Towards Technology Step-By-Step %D 2021 %N 2 %P 3 %I Yaroslavl State Technical University