This paper reports that four new glycosyl esters of Vanillic Acid were synthesized by the reaction of vanillic acid with O-acetylglucopyranosyl bromide or O-acetylgalacopyranosyl bromide,O-acetylxylopyranosyl bromide ...This paper reports that four new glycosyl esters of Vanillic Acid were synthesized by the reaction of vanillic acid with O-acetylglucopyranosyl bromide or O-acetylgalacopyranosyl bromide,O-acetylxylopyranosyl bromide and O-acetyllactosyl bromide in the presence of Ag2O respectively;and vanillic acid-4-β-D-2’,3’,4’,6’-acetyl glucoside-β-D-2",3",4",6"-acetyl glucoester by vanillic acid with O-acetylglucopyranosyl bromide in the presence of Bu4NBr.Their structures were confirmed by IR,1H NMR,13C NMR,HMBC and MS.And spectra data proved that the products are of β-configuration.展开更多
文摘This paper reports that four new glycosyl esters of Vanillic Acid were synthesized by the reaction of vanillic acid with O-acetylglucopyranosyl bromide or O-acetylgalacopyranosyl bromide,O-acetylxylopyranosyl bromide and O-acetyllactosyl bromide in the presence of Ag2O respectively;and vanillic acid-4-β-D-2’,3’,4’,6’-acetyl glucoside-β-D-2",3",4",6"-acetyl glucoester by vanillic acid with O-acetylglucopyranosyl bromide in the presence of Bu4NBr.Their structures were confirmed by IR,1H NMR,13C NMR,HMBC and MS.And spectra data proved that the products are of β-configuration.
