CAS: 6027-42-5; 1-Deoxy-1-Nitro-L-Mannitol

上下游产品

nitromethane L-arabinose L-arabinose 1,2:5,6-di-O-isopropylidene-α-L-glucofuranose C-(α-L-arabinopyranosyl)nitromethane

📜L-阿拉伯糖,硝基甲烷 反应生成 1-脱氧-1-硝基-L-甘露醇
参考文献:Kopf,Jurgen;Brandenburg,Heinz;Seelhorst,Willy;Koll,Peter,Carbohydr. Res.,200,(1990) C. 339-354
标题:Kopf,Jurgen;Brandenburg,Heinz;Seelhorst,Willy;Koll,Peter,Carbohydr. Res.,200,(1990) C. 339-354

专利信息

专利号:US-4207413-A
优先权日:1977-04-22
标 题 :L-Sucrose and process for producing same
发明人：JONES JOHN K N; SZAREK WALTER A
权利人:QUEEN S UNIV
摘要:L-sucrose or beta -L-fructofuranosyl alpha -L-glucopyranoside-(I), the enantiomer of naturally occuring D-sucrose, which does not appear in nature has been synthesized and has been found to be sweet. It is unlikely that L-sucrose is metabolized in the manner of D-sucrose. In a preferred process for producing L-sucrose the key step is the condensation of 2,3,4,6-tetra-O-benzyl- alpha -L-glucopyranosyl chloride-(II) with 1,3,4,6-tetra-O-benzyl-L-fructofuranose-(III). Compound II is obtained from L-glucose by way of 2,3,4,6-tetra-O-benzyl- alpha -L-glucopyranose; and L-glucose is prepared from L-arabinose by nitromethane synthesis. Compound III is obtained by oxidation, with Jones reagent, of 1,3,4,6-tetra-O-benzyl-L-mannitol which, in turn, is prepared from L-mannose. The condensation product of II and III is catalytically debenzylated to produce L-sucrose.