Photochemical and thermal transformation of β,β'-difuryl substituted o-divinylbenzene

U cilju nastavka proučavanja utjecaja heterocikličke jezgre na fotokemijsko ponašanje u kiselom mediju supstituiranih o-divinilbenzena pripravljen je Wittigovom reakcijom β,β'-difuranski derivat o-divinilbenzena 3. Spoj 3 podvrgnut je fotokemijskim i termičkim transformacijama u kiselom mediju pri čemu su dobivena dva nova spoja 5 i 6 okarakterizirana NMR spektroskopijom. Ostali dobiveni spojevi, fenantren 4, biciklo[3.2.1]oktadienski derivat 7 i dimerni produkt 8 poznati su iz prijašnjih istraživanja u neutralnom mediju.In aim to study the impact of the heterocyclic moiety on photochemical behaviour of substituted o-divinylbenzene in the acidic medium, β,β'-difuran derivative of o-divinylbenzene 3 was prepared by Wittig's reaction. Compound 3 was subjected to photochemical and thermal transformations in acidic medium resulting in two new compounds, 5 and 6, which were characterized by NMR spectroscopy. Other obtained products, phenanthrene 4, bicyclo[3.2.1]octadiene derivative 7 and dimeric product 8 are known from prior studies in the neutral medium