Suggested Reaction 1.14.17.-

Left

1-Benzopyrylium, 3,5,7-trihydroxy-2-(3,4,5-trihydroxyphenyl)-, chloride
+Vitamin C
+O2

Right

3,5,7,3',4',5'-Hexahydroxyflavone
+Dehydroascorbate
+H2O

[BiSSCat | GREP ]