The preparation and x-ray crystallographic characterisation of methyl 4,6-O-benzylidene-2,3-di-C-methyl-2-O-(methylthio)methyl-α-d-allopyranoside, and its conversion into methyl 2,3-dideoxy-2,3-di-C-methyl-α-d-glycero-hexopyranosid-4-ulose
作者:Vernon G.S. Box、Lynda L. Box、Earle V.E. Roberts、John F. Blount、Louis J. Todaro
DOI:10.1016/0008-6215(83)84047-6
日期:1983.8
-benzylidene-2- C -methyl-2- O -(methylthio)methyl-α- d - ribo -hexopyranosid-3-ulose and its single-crystal X-ray structural characterisation is described. Consistent with the chemistry of methyl 4,6- O -benzylidene-α- d - ribo -hexopyranosid-3-ulose 1 , the Grignard reduction of the two 2- C -methyl-α- d - ribo -hexopyranosid-3-uloses examined produced allo compounds stereoselectively. Methyl 4,6- O -benzylidene-2
摘要由甲基4,6-O-亚苄基-2-C-甲基-2-O-(甲硫基)甲基-α-d-核糖-己吡喃糖苷-3-ulose制备标题化合物及其单晶X-描述射线结构表征。与甲基4,6-O-亚苄基-α-d-核糖-己吡喃糖苷-3-ulose 1的化学性质一致,两个2-C-甲基-α-d-核糖-己吡喃糖苷-3-uloses的格利雅还原反应检查了立体选择性地产生的同素化合物。将甲基4,6- O-亚苄基-2,3-二-C-甲基-2-O-(甲硫基)甲基-α-d-吡喃吡喃糖苷脱水脱水成六-3-烯吡喃糖苷2,将其转化为甲基2 ,3-二脱氧-2,3-二-C-甲基-α-d-甘油-十六烷基-2-烯吡喃糖-4-尿酸的酸催化裂解过程2。