作　　者： ; ; ; ; ;

机构地区： 广东海洋大学食品科技学院

出　　处： 《江苏大学学报（自然科学版）》 2007年第5期438-441,共4页

摘　　要： 为开发热稳定型香原料,采用改进的Koenigs-knorr法立体选择性地合成了顺-3-己烯基-β-D-吡喃葡萄糖苷即叶醇糖苷(LGLY)——一种糖苷类香料前体;以反相液相色谱法(RP-HPLC)检测并确定最优反应条件.优化后的反应条件为:在新制备加担持剂的银盐催化剂作用下,在二氯甲烷溶剂中避光回流反应4 h.硅胶柱层析色谱梯度洗脱分离制备样品,收率56%,产物纯度99.6%.然后综合IR,LC-MS-MS,1H-NMR,13C-NMR进行了结构鉴定,确证产物为目标糖苷.对香料前体叶醇糖苷的合成、纯化及结构表征进行了系统的研究. To develop thermally by stable flavor, Z-3-hexenyl-β-D-Glucopyranoside （LGLY） , a kind of glycosidic flavor precursor was prepared by the modified Koenigs-Knorr method. RP-HPLC was used in ana-lysis and optimization of the reaction condition. The optimized reaction condition was that, freshly prepared and dried silver carbonate was added as catalyst, and the reaction mixture was refluxed free of light for 4 h in dichloromethane. The product was further purified using silica gel chromatography. The yield was 56%. The purity was 99.6%. The structure of LGLY was identified by infrared spectroscopy （IR）, liquid chromatography-mass spectrometry-mass spectrometry （LC-MS-MS）, and nuclear magnetic 1 resonance, H-NMR and ^13 C-NMR. The result indicated that the product was LGLY. A systematic study was carried on synthesis, purification and characterization of LGLY.

关 键 词： 香料前体 顺 己烯基 吡喃葡萄糖苷 叶醇糖苷 合成 纯化 表征

领　　域： [理学] [理学]