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Photodimerization of 4,6,4'-trimethylangelicin and 6,5-dimethylangelicin
S Caffieri1, G M Beijersbergen van Henegouwen, C Erkelens
1Department of Pharmaceutical Sciences, University, Padova, Italy.
Journal of Photochemistry and Photobiology. B, Biology
|December 1, 1987
Abstract:
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.