Photochemistry of o-pyrrolylstilbenes, formation of spiro-2H-pyrroles and their rearrangement to dihydroindoles (CROSBI ID 522451)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Basarić, Nikola ; Marinić, Željko ; Šindler-Kulyk, Marija
engleski
Photochemistry of o-pyrrolylstilbenes, formation of spiro-2H-pyrroles and their rearrangement to dihydroindoles
Excited states of stilbenylpyrroles 1 deactivate by two photochemical processes: cis-trans isomerization and hydrogen transfer of NH to stilbene double bond. NH-transfer results in the formation of two quinone dimethane intermediates, and biradicals. Intramolecular cyclization of intermediates gives rise to polycyclic compounds: spiro-2H-pyrroles 7, pyrroloisoindoles 3 and pyrroloisoquinolines 8. Spiro-2H-pyrroles 7 rearrange on silica gel giving dihydroindoles 2. Structures of the compounds 2, 3, 8 and 9 were determined by NMR spectroscopy.
NMR; photochemistry; pyrroles; stilbenes
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Podaci o prilogu
4-4-x.
2006.
objavljeno
Podaci o matičnoj publikaciji
DU NMR 2006 - Book of Abstracts
Smrečki, Vilko ; Vikić-Topić, Dražen
Zagreb: -
Podaci o skupu
DU NMR 2006 The Fifth International DU NMR Course and Conference
poster
02.11.2006-05.11.2006
Mali Ston, Hrvatska