Synthesis of 6-Deoxy-4-<i>O</i>-methyl-6-phenylphosphinyl-D-fructopyranoses. The First P-in-the-Ring Analogs of a Ketose
作者:Tadashi Hanaya、Ryuji Okamoto、Yurij V. Prikhod’ko、Hiroshi Yamamoto
DOI:10.1246/cl.1991.1439
日期:1991.8
Treatment of D-fructose with 2-methoxypropene–TsOH, followed by tosylation, gave 1,3-O-isopropylidene-6-O-tosyl-α-D-fructofuranose (5). Methyl 6-deoxy-6-[(ethoxy)phenylphosphinyl]-4-O-methyl-α-D-fructofuranoside (8) was derived from 5 in a 3 step sequence (67% overall yield). Compound 8 was converted into the title compounds, which were characterized as the 1,3,5-tri-O- and 1,2,3,5-tetra-O-acetyl derivatives.
用 2-甲氧基丙烯-TsOH 处理 D-果糖,然后进行对甲苯磺酰化,得到 1,3-O-异亚丙基-6-O-对甲苯磺酰基-α-D-呋喃果糖(5)。甲基 6-脱氧-6-[(乙氧基)苯基膦酰基]-4-O-甲基-α-D-呋喃果糖苷(8)通过 3 个步骤从 5 得到(总收率 67%)。化合物 8 转化为标题化合物,其特征为 1,3,5-三-O-和 1,2,3,5-四-O-乙酰基衍生物。