Photodimerization of 4,6,4'-trimethylangelicin and 6,5-dimethylangelicin.
4,6,4'-Trimethylangelicin and 6,5'-dimethylangelicin form C4-cyclodimers when irradiated in water-ethanol solution. The former compound yields a pyrone-pyrone dimer similar to that formed by psoralens. 6,5'-Dimethylangelicin forms both pyrone-pyrone and pyrone-furan dimers; this unusual dimer has the cis-syn configuration.
Caffieri
S
S
Department of Pharmaceutical Sciences, University, Padova, Italy.
Beijersbergen van Henegouwen
G M
GM
Erkelens
C
C
de Bruijn
C
C
Dall'Acqua
F
F
D011564:Furocoumarins / Q000528:radiation effects*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D010777:Photochemistry; D013056:Spectrophotometry, Ultraviolet; D014466:Ultraviolet Rays
D011564:Furocoumarins; C059518:6,5'-dimethylangelicin; C041621:4,4',6-trimethylangelicin