[EN] ZOLINOSE COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF [FR] COMPOSÉ ZOLINOSE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION [ZH] 唑啉糖类化合物及其制备方法和用途
Hafnium inspired activation of highly hindered anhydrides in the acylation of alcohols and polyols
作者:Enoch Mensah、Aaron Day、Raven Thomas
DOI:10.1016/j.tetlet.2018.02.009
日期:2018.3
A novel and highlyefficient method for activating highly hindered acid anhydrides towards the acylation of alcohols and carbohydrate-derived polyols has been developed. This new method relies on the capacity of the hafnium triflate catalyst Hf(OTf)2 to activate highly hindered acid anhydrides, and to direct the acylation reaction. This new acylation protocol is mild and proceed at room temperature
Synthesis and utilization of saccharide intermediates
作者:D. Becker、N. Galili
DOI:10.1016/0008-6215(93)84121-l
日期:1993.10
A new method has been developed for preparation of partially pivaloylated saccharides in one step from readily available starting materials. These intermediates were used in the synthesis of disaccharides and a glucosteroid.