Browsing by Author "Mikulska, Maria"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Kinetic of the [2 +3] cycloaddition of Z-C-aryl-N-phenylonitrones with 1-bromo-1-nitroethene
    (Видавництво Львівської політехніки, 2011) Mikulska, Maria; Barański, Andrzej
    Kinetic measurements of the [2+3] cycloaddition reaction between 1-bromo-1-nitroethene and Z-C-aryl-N-phenylnitrones were carried out. Kinetic studies proved that despite the high p-deficiency of the nitroalkene, the reactions proceed according to the concerted mechanism. This is evidenced in particular by the character of the Dimroth-Hammet correlation.
  • Thumbnail Image
    Item
    Quantumchemical study of the [2+3] cycloaddition of nitroethene with (Z)-C,N-diphenylnitrone
    (Видавництво Львівської політехніки, 2011) Jasiński, Radomir; Jasińska, Ewa; Mikulska, Maria
    Global and local reactivity indexes indicate polar character of the [2+3] cycloaddition of nitroethene to (Z)-C,Ndiphenylnitrone. The regioselectivity of these reaction is determined by the attack of oxygen-centered nucleophilic site of the nitrone on b-carbon atom in nitroethene. This is confirmed by B3LYP/6-31G(d) simulations of the reaction pathways.