Abstract 4,6- O -Benzylidenehex-2-enopyranoside derivatives having a 2- C - or 3- C-p -tolylsulfonyl group were synthesized from appropriate nitro sugars by the addition of p -toluenesulfinic acid followed by elimination of nitrous acid. 1,5-Anhydro-4,6- O -benzylidene-2,3-dideoxy-2- C-p -tolylsulfonyl- d - erythro -hex-2-enitol was similarly prepared. Methyl 4,6- O -benzylidene-2,3-dideoxy-2- C -
摘要通过添加
对甲苯亚磺酸,然后消除
亚硝酸,由适当的硝基糖合成了具有2-C-或3-Cp-
甲苯磺酰基的4,6-O-苄叉基-2-烯
吡喃糖苷衍
生物。类似地制备1,5-脱
水-4,6-O-亚苄基-2,3-二脱氧-2-Cp-
甲苯磺酰基-d-赤-己二-2-烯醇。交替地由甲基2,3-脱
水-α合成4,6-O-亚苄基-2,3-二脱氧-2-C-和-3-Cp-
甲苯磺酰基-α-d-赤-己基-2-烯
吡喃糖苷。 -d-allo-和-mannopyranosides,分别通过用对-甲
苯硫醇钠裂解
环氧乙烷环,然后氧化。