期刊
TETRAHEDRON LETTERS
卷 41, 期 4, 页码 485-488出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(99)02097-3
关键词
polyphenols; antioxidant; radicals; bond dissociation enthalpy
Procyanidin B-1 and B-2 were converted into A-1 and A-2 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions; respectively. Transformation of procyanidin B-type into A-type certainly shows abstraction of the hydrogen atom at the C-2 position during radical oxidation. (C) 2000 Elsevier Science Ltd. All rights reserved.
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