Observation of a stable orthoacyl fluoride in the reaction of a reducing sugar with diethylaminosulfur trifluoride
作者:Marei H.E. Griffith、Ole Hindsgaul
DOI:10.1016/0008-6215(91)84155-8
日期:1991.4
The use of pyranosyl fluorides as glycosylating agents has gained wide popularity, in part due to their enhanched stability over the corresponding bromides or chlorides’,2. Many methods are available for their preparation*5. One of the most direct methods is the reaction of reducing sugars with diethylaminosulfur trifluoride (DAST), but the yields of glycosyl fluorides are variable and solvent dependenP’