Total stereo- and enantio-selective synthesis of 2,3-dideoxy-3-C-methylene-d-glycero-pentose and its ethyl furanosides
作者:Yuri E. Raifeld、Galina Ya. Vid、Igor E. Mikerin、Boris M. Arshava、Antonia A. Nikitenko
DOI:10.1016/0008-6215(92)84097-c
日期:1992.2
Abstract A total stereo- and enantio-selective synthesis of 2,3-dideoxy-3- C -methylene- d - glycero -pentose and its ethyl furanosides is described. The key reaction of the synthesis is formation of the 3- C -methylene function by catalytic isomerisation of an epoxy alcohol, obtained by silylation of 3-methyl-2-butenal, followed by condensation of the silyl ether with triethyl orthoformate, reduction of
摘要描述了2,3-二脱氧-3-C-亚甲基-d-甘油-戊糖及其乙基呋喃糖苷的全立体和对映选择性合成。合成的关键反应是通过3-甲基-2-丁烯醛的甲硅烷基化反应制得的环氧醇催化异构化形成3-C-亚甲基官能团,然后将甲硅烷基醚与原甲酸三乙酯缩合,还原醛基和烯丙醇的Sharpless不对称环氧化。由市售的3-甲基-2-丁烯醛作为起始化合物的总产率为17%。