Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Young-Soo Bae; Johann F.W. Burger; Jan P. Steynberg; Daniel Ferreira; Richard W. Hemingway
    Date: 1994
    Source: Phytochemistry 35(2):472-478
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (1.2 MB)


    The bark of blackjack oak contains (+)-catechin, (-)-epicatechin, (+)-3-O-[β-D-glucopyranosyl]-catechin, catechin-(4α→8}-catechin, epicatechin-(4β→8}-catechin as well as the novel 3-0-[β-D-glucopyranosyl]-catechin-(4α→8)-catechin and 3-0-[α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl]-catechin, as major components. The latter rutinoside of catechin is especially interesting because of the exceptionally small J2.3 C-ring coupling. The glucoside of catechin-(4α→8)-catechin is only the second proanthacyanidin found in nature in which a 3-0-glycoside is present in the upper 'extender unit' of a dimer.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Bae, Young-Soo; Burger, Johann F.W.; Steynberg, Jan P.; Ferreira, Daniel; Hemingway, Richard W. 1994. Flavan and procyanidin glycosides from the bark of blackjack oak. Phytochemistry 35(2):472-478

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page