A convenient and alternative procedure for the synthesis of sugar orthoesters from glycosyl bromides with an- hydrous sodium acetate as base under ultrasound irradiation is described. Various sugar and sugar-sugar ort...A convenient and alternative procedure for the synthesis of sugar orthoesters from glycosyl bromides with an- hydrous sodium acetate as base under ultrasound irradiation is described. Various sugar and sugar-sugar orthoesters were prepared in 70%-91% isolated yields.展开更多
文摘A convenient and alternative procedure for the synthesis of sugar orthoesters from glycosyl bromides with an- hydrous sodium acetate as base under ultrasound irradiation is described. Various sugar and sugar-sugar orthoesters were prepared in 70%-91% isolated yields.