Phlobatannins via facile ring isomerizations of profisetinidin and prorobinetinidin condensed tannin units
作者:Jan P. Steynberg、Desmond A. Young、Johann F. W. Burger、Daneel Ferreira、David G. Roux
DOI:10.1039/c39860001013
日期:——
(also when preceded by induced positional isomerization) in NaHCO3–Na2CO3 buffer solution under nitrogen, with liberation of reactive nucleophilic resorcinol units to form a range of bifunctional phlobatannins.
[4,8] -2,3-反式-3,4-反式-(-)-Fisetinidol-2,3-反式-(+)-儿茶素及其(-)-罗比替尼醇同系物在不同程度上受到氮气氛下,在NaHCO 3 -Na 2 CO 3缓冲溶液中进行轻松的环异构化(也可在诱导位置异构化之前进行),并释放反应性亲核间苯二酚单元,形成一系列双功能邻苯二酚。
Steynberg, Jan P.; Burger, Johann F. W.; Young, Desmond A., Journal of the Chemical Society. Perkin transactions I, 1988, p. 3323 - 3330
作者:Steynberg, Jan P.、Burger, Johann F. W.、Young, Desmond A.、Brandt, Edward, V.、Steenkamp, Jacobus A.、Ferreira, Daneel