Stereoselective Synthesis of α-Glycosyl Azides by TMSOTf-Mediated Ring Opening of 1,6-Anhydro Sugars
作者:Mathieu L. Lepage、Anne Bodlenner、Philippe Compain
DOI:10.1002/ejoc.201201580
日期:2013.4
Access to α-glycosylazides in modest to high diastereoselectivity by way of TMSN3 ring-opening of 1,6-anhydrosugars mediated by TMSOTf is reported. The reaction tolerates a wide variety of functional groups including alcohol, alkyne,
Stereoselective synthesis of α-glycosyl azides by ring-opening of 1,6-anhydrosugars with trimethylsilyl azide
作者:Tianyu Cui、Raymond Smith、Xiangming Zhu
DOI:10.1016/j.carres.2015.08.002
日期:2015.10
We describe here an expedient and highly stereoselective procedure for the synthesis of alpha-glycosyl azides. Treatment of 1,6-anhydrosugars with trimethylsilyl azide in the presence of trimethylsilyl triflate led to the formation of alpha-glycosyl azides. All the reactions were highly stereoselective and afforded the alpha-glycosyl azides in good to excellent yields.