Ne. Es-safi et al., New phenolic compounds obtained by evolution of (+)-catechin and glyoxylicacid in hydroalcoholic medium, TETRAHEDR L, 41(12), 2000, pp. 1917-1921
The reaction between (+)-catechin 1 and glyoxylic acid in model solution sy
stem was investigated by LC/DAD and LC/ESI-MS analysis and the formation of
new phenolic compounds 2, 3, 4 exhibiting absorption maxima near 300 nm we
re observed. The structures of these compounds were elucidated by ESI-MS an
d 1D and 2D NMR spectroscopy. (C) 2000 Published by Elsevier Science Ltd. A
ll rights reserved.