Naslov
Photochemical transformations of omega, omega'-diaryl substituted butadienes

Autori
Škorić, Irena ; Šmehil, Mario ; Šindler-Kulyk, Marija

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

Izvornik
CECP 2006 ; Book of Abstracts / - Bad Hofgastein, 2006, 112-112

Skup
Central European Conference on Photochemistry-CECP2006

Mjesto i datum
Bad Hofgastein, Austrija, 05.03.2006. - 09.03.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
photochemistry; butadienes; cycloadditions; conjugated systems; polycyclic structures

Sažetak
The photochemistry of styryl substituted monofuran derivatives has been thoroughly investigated (1). The irradiation of the unsubstituted furan derivative 1 resulted in intramolecular cycloaddition and formation of the bicyclo[3.2.1]octadiene structure 2 via 1, 6-ring closure, in a very good yield. In order to prepare new polycyclic structures by the same methodology, new o-substituted omega, omega'-diaryl-1, 3-butadienes 3 were synthesized and the photochemistry of this system with prolonged conjugation was studied. Upon irradiation of a mixture of isomers of 1, 3-butadiene derivative 3, on 350 nm the endo-7-phenyl-2, 3-benzobicyclo[3.2.1]octa-2, 5-diene (4) was isolated as the only product. Photochemical reaction on 300 nm gave an equimolar mixture of the bicyclic structure 4 and endo-7-phenyl-2, 3-benzotricyclo[3.2.1.0 4.6]oct-2-ene (5). The identification and the mechanism of the formation of the obtained products will be discussed.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA