A New Highly Regioselective Reaction of Unprotected Sugars for Chemical Synthesis of 6-Acyl-D-Glycopyranosides
摘要:
New methodologies developed to synthesize 6-acyl-D-glycopyranosides are described. Thus, regioselective acylation of non protectedglycopyranosides was performed using acyl-p-nitrothiophenol esters and acyl-2,4-dinitrophenol esters as the acylating reagents, yielding 6-acylated derivatives in high yields.
A New Highly Regioselective Reaction of Unprotected Sugars for Chemical Synthesis of Methyl-6-D-acyl-D-glycopyranosides by Mean of Chlorophosphoric Acid Diethyl Ester[(C<sub>2</sub>H<sub>5</sub>O)<sub>2</sub>P(:O)Cl] as Condensing Reagent
作者:Jie Xia、Yongzheng Hui
DOI:10.1080/00397919608003614
日期:1996.1
A new methodology which allows the regioselective acylation of no protected methyl-D-glycopyranosides at the primary hydroxy group is described. Thus, a new synthetic procedure is presented to synthesize 6-acyl-methyl-glycopyranosides from unprotected glycopyranosides by means of (EtO)2P:OCl as condensing reagent.