Croatica Chemica Acta, Vol. 87 No. 4, 2014.
Original scientific paper
https://doi.org/10.5562/cca2443
Photoisomerization and Photocyclization of 5-Styryloxazole
Ivana Šagud
; Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia
Marija Šindler-Kulyk
; Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia
Anna Spalletti
; Department of Chemistry, Biology and Biotechnologies and Centro di Eccellenza Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Piazza Università 1, 06123 Perugia, Italy
Ugo Mazzucato
; Department of Chemistry, Biology and Biotechnologies and Centro di Eccellenza Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Piazza Università 1, 06123 Perugia, Italy
Abstract
This paper describes the competition of the relaxation processes (fluorescence, isomerization and cyclization) of 5-styryloxazole in the first excited singlet state. The study is carried out under mild conditions and in the first stage of irradiation to compare the photobehaviour with that reported in a previous work on preparative scale. The quantum yields of the radiative and reactive deactivation are compared with those of the analogous compounds containing pentatomic heteroaryl groups.
Keywords
electrocyclization; fluorescence; oxazoles; photochemistry
Hrčak ID:
131525
URI
Publication date:
22.12.2014.
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