Naslov
Synthesis and Photochemical Reactions of 2, 3-distyrylfurans

Autori
Škorić, Irena ; Šindler-Kulyk, Marija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
20th International Congress of Heterocyclic Chemistry Book of Abstracts / - Palermo, 2005, 248-248

Skup
20th International Congress of Heterocyclic Chemistry

Mjesto i datum
Palermo, Italija, 31.07.2005. - 05.08.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
furans; photoreactions; polycyclic structures; photocycloaddition; o-divinylbenzenes; bicyclic structures; cyclophanes; phototransposition products

Sažetak
The photochemistry of styryl substituted monofuran derivatives has been thoroughly investigated (1). The irradiation of disubstituted o-divinylbenzenes, compounds 1a-c, resulted in the formation of bicyclo[3.2.1]octadiene structures 2, cyclophanes 3 and cyclobutanes 4 (2). With a view to study the hexatriene system in which the central double bond is a part of a furan ring various 2, 3-distyrylfurans 5 are prepared. The multistep synthesis of 5a-d was performed by the Wittig reactions of properly 3-substituted-2-furancarboxaldehydes and corresponding phosphonium salts. The irradiation of 2, 3-distyrylfurans 5 gave stilbenyl-like and phototransposition products. No intramolecular cycloadditions and formation of the bicyclic structures have been observed. The structure determination as well as the reaction mechanism will be discussed.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA