Reactions of sugar thio-orthoesters: Nucleophilic substitution of an arylthio group during zemplén deacylation
作者:Leon V. Backinowsky、Narguiz E. Byramova、Yury E. Tsvetkov、Vitali I. Betaneli
DOI:10.1016/s0008-6215(00)80813-7
日期:1981.12
benzoylated sugar 1,2-thio-orthoesters bearing an S -aromatic residue with methanolic sodium methoxide is accompanied by inter- and intra-molecular nucleophilic substitution of the arylthio group with formation of the corresponding bi- and tri-cyclic orthoesters. Stereochemical aspects and a possible mechanism for this reaction are discussed. Free arylthio-orthoesters were obtained by performing the deacylation