Polymeric proanthocyanidins: Interflavanoid linkage isomerism in (epicatechin-4)-(epicatechin-4)-catechin procyanidins

Richard W. Hemingway; L. Yeap Foo; L. J. Porter

Treesearch

Polymeric proanthocyanidins: Interflavanoid linkage isomerism in (epicatechin-4)-(epicatechin-4)-catechin procyanidins

Informally Refereed

Authors:

Richard W. Hemingway, L. Yeap Foo, L. J. Porter

Year:

1981

Type:

Scientific Journal

Station:

Southern Research Station

Source:

Journal of the Chemical Society Chemical Communications 7(320-322

Download (PDF 364 KB)

Download (PDF 364 KB): https://research.fs.usda.gov/download/treesearch/8024.pdf

Abstract

Procyanidin trimers have been isolated from a variety of plants,^1-3 but their structures remain unresolved. We have now isolated three configurational isomers of (epicatechin-4)-(epicatechin-4)-catechin from Pinus taeda L. (loblolly pine) phloem which exhibit isomerism of the interflavanoid linkages.

Citation

Hemingway, Richard W.; Foo, L. Yeap; Porter, L. J. 1981. Polymeric proanthocyanidins: Interflavanoid linkage isomerism in (epicatechin-4)-(epicatechin-4)-catechin procyanidins. Journal of the Chemical Society Chemical Communications 7(320-322