Naslov
Synthesis and Di-Π -Methane Photoarrangement of Trifluoromethyl Dibenzobarrelene Derivates

Autori
Otočan, Klaudio ; Mintas, Mladen

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

Skup
Sixth European Symposium on Organic Chemistry

Mjesto i datum
Beograd, Jugoslavija, 1989

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
sinteza; fotopregrađivanje dibenzobarelenskih derivata
(photochemistry; dibenzobarrelene derivates)

Sažetak
Our interest in the photochemistry of 9-trifluoromethyl-anthracene (TEMA) l led us to prepare and study the photochemical behaviour of dimethyl-l-trifluoromethyl dibenzo [b, e] bicyclo [2.2.2]octa– 2, 5, 7-triene– 7, 8– dicarboxylate 2 (dibenzobicyclo [2.2.2] octa– 2, 5, 7 – triene = “ dibenzobarrelene” ). 2 was prepared by the Diels-Alder cycloaddition of dimethylacetylene dicarbocylate on TEMA. In solution 2 underwent the di-Π -methane photosenzitised (acetone ) rearrangement to afford the l, 2-dicarnomethoxy-8-trifluoromethyl-dibenzotricyclo [3.3.0.02, 8]octa – 3, 6-diene 3 (dibenzotricyclo [3.3.0.02, 8] octa-3, 6-diene = “ dibenzosemibullvalene” ). The structures of 2 and 3 were determined by lH and l3C NMR spectra.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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