Title of article :
1,2-trans-Glycosyl Azides of Sugar 2-Sulfonic Acids
Author/Authors :
Lazar، Laszlo نويسنده , , Bajza، Istvan نويسنده , , Jakab، Zsolt نويسنده , , Liptak، Andras نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Treatment of the 2-O-mesylated 1-SAc-, 1-S[2-(trimethylsilyl)ethyl]-(alpha)-D-manno-, and 1-SAll-(beta)-D-glucopyranosides with NaN3 resulted exclusively in 2-SAc-, 2-S[2-(trimethylsilyl)ethyl]-(beta)-D-gluco-, and 2-SAll-(alpha)manno-pyranosyl azides. The 2-S substituents were removed either with acetic acid (SAc), or Hg(TFA)2 (SCH2CH2SiMe3, SCH=CHCH3) and the 2-SH groups were oxidized into sugar 2-sulfonic acids giving 1,2-trans-glycosyl azides.
Keywords :
2-S substituents , glycosyl azides , 1,2-thio-migration , sugar 2-sulfonic acids
