摘要
本文报道了在相转移催化剂三乙基苄基氯化铵存在下，２，３，４，６－四－Ｏ－乙酰基－α－Ｄ－溴代吡喃型葡萄糖和２．３，４，６－四－Ｏ－乙酰基－α－Ｄ－溴代吡喃型半乳糖与苯甲酸衍生物、呋喃甲酸反应，合成了糖酯．经元素分析，ＩＲ．１Ｈ－ＮＭＲ，１３Ｃ－ＮＭＲ．ＭＳ谱确证了其中８个未知物的结构，产物具有高度的立体选择性，并皆被证实为β－端基异构体．
This paper reports that in the presence of triethylbenzylammonium chloride as phase transfer catalyst,2, 3, 4, 6-tetra-O-acetyl-α-D-glucopyrano bromide and 2, 6, 4, 6-tetra-O-acetyl-α-D-galactopyranosyl bromide react with benzoic acid and its substitutes, furoic acid to give carbohydrate esters, The product has high stereospecificity. Their constitutes and structures are confirmed by element analysis, IR. H-NMR, 13 C-NMR and MS spectra. They also have been proved to have the same configuration of β-anomer.
出处
《新疆大学学报（自然科学版）》
CAS
1995年第1期66-69,共4页
Journal of Xinjiang University(Natural Science Edition)
关键词
相转移催化
糖酯
三乙基
苄基
氯化铵
半乳糖
phase transfer catalysis carbohydrate ester triethylbenzylammorium chloride
