Stereochemistry of Nucleophilic Addition Reactions. VIII. Preparation of 1,5-Anhydro-4,6-<i>O</i>-benzylidene-2,3-dideoxy-3-nitro-D-<i>erytho</i>-hex-2-enitol and Its Reactions with Some Nucleophiles
作者:Tohru Sakakibara、Yutaka Nomura、Rokuro Sudoh
DOI:10.1246/bcsj.53.1642
日期:1980.6
having an axial and equatorial deuterium atom at C-2 in an approximate ratio of 2:1. On the other hand, the reaction with hydrogen cyanide gave predominantly the adduct with the manno configuration, together with small amounts of a cyano olefin. The reaction with hydrazoic acid yielded addition products with the gluco and manno configurations; the ratio was strongly affected by the solvent used.
标题化合物由 1,5-脱
水-
D-葡萄糖醇通过
硝基甲烷环化合成。用
硼氢化钠还原该化合物,得到在 C-2 处具有轴向和赤道
氘原子的饱和
硝基化合物的混合物,其比例约为 2:1。另一方面,与
氰化氢的反应主要产生具有
甘露糖构型的加合物以及少量
氰基烯烃。与偶氮酸反应生成具有
葡糖和
甘露糖构型的加成产物;该比率受所用溶剂的影响很大。