Nuclear oxidation in the flavone series - Part VIII. 7: 8-dihydroxy-flavone and-flavonol
N Narasimhachari L Ramachandra Row T R Seshadri
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/seca/027/01/0037-0043
The possibility of orthor nuclear oxidation in the flavone series has been tested using 7-hydroxy-flavone and 3-methoxy-7-hydroxyl-flavone. By means of alkaline persulphate 7: 8-dihydroxy-flavone (10% yield) and 3-methoxy-7: 8-dihydroxy-flavone (20% yield) could be obtained. This seems to offer an easier method of preparing the flavonol, 3: 7: 8-trihydroxy flavone. The intermediate stage of the sulphate could be isolated pure from 7-hydroxyflavone.
N Narasimhachari1 L Ramachandra Row1 T R Seshadri1
© 2022-2023 Indian Academy of Sciences, Bengaluru.