Abstract The phase-transfer catalyzed benzylation of 1,5-anhydro-2,6-dideoxy- l - arabino -hex-1-enitol ( l -rhamnal, 5 ) led to a mixture of 4- and 3- O -benzyl derivatives in the ratio of 2:1. By silylation, 5 was regiospecifically transformed into either the 3- O - tert -butyldimethylsilyl ( 3 ) or the 3- O - tert -butyldiphenylsilyl ( 7 ) derivatives, both compounds being characterized as their
Synthesis of Hexenuloses and a Library of Disaccharides Possessing 3-oxo-glycal Unit
作者:Perali Ramu Sridhar、Intzar Ali、M V Kamala Lakshmi
DOI:10.1021/acs.joc.2c00663
日期:2022.7.15
An expeditious method for the synthesis of monosaccharides and disaccharides possessing 3-oxo-glycal units is revealed. Several monosaccharides and disaccharide-derived glycals are converted to the corresponding hexenuloses in three steps involving halo-alkoxylation, dehydrohalogenation, and ketalyzation reactions. A number of 3-oxo-glycals are synthesized to show the methodology’s importance and generality