Flash photolysis of 4′,7-dihydroxyflavylium perchlorate

Fernando Pina, Maria João Melo, Roberto Ballardini, Lucia Flamigni, Mauro Maestri

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

In this work flash photolysis is applied for the first time to study kinetic processes involving synthetic flavylium salts and anthocyanins. This method proves to be a unique tool for the study of 4′,7-dihydroxyflavylium salt, having shown that in this compound the cis-trans isomerization is not the determining step in the process that converts the flavylium cation into trans-chalcone. This role is attributed to the hydration reaction, in contrast with previous results obtained for 4′-substituted synthetic flavylium salts and anthocyanins.

Original languageEnglish
Pages (from-to)969-976
Number of pages8
JournalNew Journal of Chemistry
Volume21
Issue number9
Publication statusPublished - 1 Dec 1997

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