Authors: |
L. Yeap Foo, Gerald W. McGraw, Richard W. Hemingway |
Year: |
1983 |
Type: |
Scientific Journal |
Station: |
Southern Research Station |
Source: |
Journal of The Chemical Society Chemical Communications 12:672-673 |
Abstract
The reaction of loblolly pine (Pinus taeda L.) bark tannins with sodium hydrogen sulphite gave sodium epicatechin-(4β)-sulphonate(1) and sodium epicatechin-(4β→8)-epicatechin-(4β)-sulphonate(2) in high yield with only a minor amount of sodium 1-(3,4-dihydroxyphenyl)-2-hydroxy-3-(2,4,6-trihydroxyphenyl)-propane-1-sulphonate(3).
Citation
Foo, L. Yeap; McGraw, Gerald W.; Hemingway, Richard W. 1983. Condensed tannins: Preferential substitution at the interflavanoid bond by sulphite ion. Journal of The Chemical Society Chemical Communications 12:672-673