Title of article :
Michael-Type Addition to 2-Nitrogalactal - A Simple Method to Access 1,1-Linked Oligosaccharides
Author/Authors :
Balamurugan، Rengarajan نويسنده , , Pachamuthu، Kandasamy نويسنده , , Schmidt، Richard R. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Anomeric O-unprotected sugars add to 3,4,6-tri-O-benzyl-2-nitro-d-galactal to accomplish nitro group-containing 1,1-linked oligosaccharides in respectable yields with good selectivities. A 1:1 mixture of toluene and n-heptane has been found as the appropriate solvent system for these Michael-type additions. The nitro group-containing 1,1-linked oligosaccharides are easily convertible into interesting trehalosamine analogues.
Keywords :
2-nitrogalactal , O-unprotected sugars , 1,1-linked oligosaccharides , Nitro group , Michael-type addition
