Synthesis of the novel conjugated ω,ω′-diaryl/heteroaryl hexatriene system with the central double bond in a heteroaromatic ring: photochemical transformations of 2,3-divinylfuran derivatives (CROSBI ID 123309)
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Podaci o odgovornosti
Škorić, Irena ; Flegar, Ivana ; Marinić, Željko ; Šindler-Kulyk, Marija
engleski
Synthesis of the novel conjugated ω,ω′-diaryl/heteroaryl hexatriene system with the central double bond in a heteroaromatic ring: photochemical transformations of 2,3-divinylfuran derivatives
New b, b'-aryl/heteroaryl 2, 3-divinylfuran derivatives (9a-d) in which a hexatriene system is a part of heteroaromatic ring have been synthesized and their photochemical properties investigated. The primary process observed was the isomerization to trans, trans-isomers 9a-d followed by photochemical rearrangement of the furan ring giving the phototransposition products (I-IV). Stilbenes (20, 21) and phenanthrenes (22, 25 and 26) formed as secondary products from the competitive intermolecular cycloadditions, were also observed.
oxygen heterocycles ; pericyclic reaction ; photochemistry ; rearrangement ; synthesis
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