Hrvatska znanstvena bibliografija (CROSBI)



Pregled bibliografske jedinice broj: 75140

Časopis

Autori: Šindler-Kulyk, Marija; Basarić, Nikola
Naslov: Photochemical Approach to Heteropolycyclic Compounds
Izvornik: Kemija u industriji (0022-9830) 51 (2002), 4; 169-175
Vrsta rada: pregledni rad
Ključne riječi: photochemistry; cycloaddition; heterocycles; stilbene; furan; pyrrole; polycycles
Sažetak:
Heterocyclic stilbene analogues, furan, benzofuran, naphthofuran as well as pyrrole derivatives of o-divinylbenzene, are useful substrates for the photochemical transformations to the heteropolycyclic compounds in one step. While furan and benzofuran derivatives give bicyclo[3.2.1]octadiene structures by intramolecular cycloaddition and heterocyclic ring participation, the naphthofuran analogues give cyclobutane products, formed by [2+2] intermolecular cycloaddition. Nitrogen analogues, with pyrrole ring as a substituent, behave completely different, giving dimeric products by intermolecular pyrrole addition to the double bond. The mechanism includes electron transfer followed by hydrogen transfer and radical combination. When both vinyl groups in o-divinylbenzene are substituted with a pyrrole moiety the main process is, after an electron transfer and hydrogen transfer, the intramolecular ring closure to indane derivatives followed by the second inter- or intramolecular reaction with pyrrole.
Projekt / tema: 0125004
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Scopus
Kategorija: Znanstveni
Znanstvena područja:
Kemija
URL cjelovitog teksta:
Google Scholar: Photochemical Approach to Heteropolycyclic Compounds