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Sulfuric acid immobilized on silica gel is designed as a very useful catalyst for synthesis of 2,3-unsaturated glycopyranosides. This handy,metal-free,environment friendly transformation provides high yields andα-stereoselectivities in a very few amount (<0.02 eq.) of catalyst and in short reaction times(<10 min).
This handy, metal-free, environment friendly transformation provides high yields and α-stereoselectivities in a very few amount (<0.02 eq.) of catalyst and in short reaction times (<10 min).