The synthesis of 2-deoxy-α-d-glycosides from d-glycals catalyzed by TMSI and PPh3
摘要:
2-Deoxyglycosides were synthesized in high alpha-selectivity by the direct addition of alcohols to D-glucal and D-galactal catalyzed by TMSI and PPh3. The acid labile isopropylidene group is tolerated under this condition. (C) 2012 Elsevier Ltd. All rights reserved.
Fe(III)-catalyzed stereoselective synthesis of deoxyglycosides using stable bifunctional deoxy-phenylpropiolate glycoside donors
作者:Anjali Aghi、Sankar Sau、Amit Kumar
DOI:10.1016/j.carres.2024.109051
日期:2024.2
Herein, we report a mild and economical route for the stereoselectivesynthesis of 2-deoxy and 2,6-dideoxyglycosides FeCl-catalyzed activation of bench stable deoxy-phenylpropiolate glycosyl donors (D-PPGs). Optimized reaction conditions work well under additive-free conditions to afford the corresponding 2-deoxy and 2,6-dideoxyglycosides in good yields with high α-anomeric selectivity by reacting