Kostritsky Aleksandr Yu. RussiaSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia sanok1993@mail.ru Author's articles On Interaction of Synthetic Food Dye E133 with Cetylpiridinium Cations Synthesis and Heterocyclization of 4-Hydroxy-3 - ((2-hydroxy-4,4-dimethyl-6-oxocyclohex1-en-1-yl) (aryl) methyl) -2H-chromen-2-ones Quantum chemical analysis of reactivity of several chromenopyrazoles