作者:Changyou Yuan、Rawle I. Hollingsworth
DOI:10.1016/j.tetlet.2011.07.082
日期:2011.10
of the hydroxyl groups as their allyl ether followed by reductive cleavage of the glycosidic linkage with triethylsilane formed the protected anhydroglucitol. No ring rearrangement or ring contraction was observed during the reduction step. Using the PdCl2–CuCl2–activated charcoal system, the allyl ether bond was cleaved with a low loading of the catalyst (0.0025 equiv per allyl group). 1,5-Anhydro-d-glucitol
由甲基-d-葡糖苷以高收率和纯度制备重要的d-葡萄糖和d-葡萄糖6-磷酸类似物1,5-脱水-d-葡萄糖醇和1,5-脱水-d-葡萄糖醇6-磷酸。保护羟基作为它们的烯丙基醚,然后用三乙基硅烷还原性切割糖苷键,形成了被保护的脱水葡萄糖醇。在还原步骤中未观察到环重排或环收缩。使用PdCl 2 -CuCl 2活化的木炭系统,烯丙基醚键在低催化剂负载量(每个烯丙基0.0025当量)的作用下断裂。通过将1,5-脱水-d-葡萄糖醇磷酸化来制备1,5-脱水-d-葡萄糖醇6-磷酸。