作者:Guillaume Desmares、Delphine Lefebvre、Gilles Renevret、Claude Le Drian
DOI:10.1002/1522-2675(20010418)84:4<880::aid-hlca880>3.0.co;2-u
日期:2001.4.18
Alternative conditions for the classical glycosidation method of Koenigs-Knorr allowed us to prepare selectively β-D-glucosides of several hindered alcohols in good yields in a weakly acidic to almost neutral medium. To illustrate the versatility of our conditions, we prepared the β-D-glucoside of an acid-sensitive aglycone, a key-intermediate for the total synthesis of a natural cyanoglucoside, bauhinin
Koenigs-Knorr 经典糖苷化方法的替代条件使我们能够在弱酸性到几乎中性的介质中以高产率选择性地制备几种受阻醇的 β-D-葡萄糖苷。为了说明我们条件的多功能性,我们制备了酸敏感苷元的 β-D-葡糖苷,这是全合成天然氰基葡糖苷紫荆苷的关键中间体。