Spectral evidence for the structure of three flavanotropolones related to theaflavin, an orange-red pigment of black tea
- 1 September 1967
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 45 (17) , 1949-1956
- https://doi.org/10.1139/v67-310
Abstract
Conclusive spectral evidence for the structure of categallin, pyrogallin, and erycetin, three flavanotropolones related to theaflavin and purpurogallin, is presented. The synthetic, chromatographic, and spectroscopic data for 4 simpler hydroxybenzotropolones are also recorded and discussed.This publication has 1 reference indexed in Scilit:
- Studies on the Mechanism of the Oxidation of Tea Leaf CatechinsAgricultural and Biological Chemistry, 1964