Our understanding of the mechanisms of glycopyranosyl transfer that occur in solution, both for the chemical synthesis of complex structures and that for the cleavage of glycosidic bonds has allowed… Click to show full abstract
Our understanding of the mechanisms of glycopyranosyl transfer that occur in solution, both for the chemical synthesis of complex structures and that for the cleavage of glycosidic bonds has allowed us to design biologically active molecules. Recent efforts on the reactivity of glycopyranosides, which are critical entities in all biological systems, coupled with the advent of modern spectroscopic instrumentation have allowed physical organic chemists to broaden our knowledge of glycosyl transfer reaction transition states, both in solution and for enzyme-catalyzed processes, and of critical high energy intermediates. This review details recent physical organic, kinetic and structural studies that have led to elucidation of several different mechanism for the transfer of glycopyranosyl moieties from various substrates to acceptors, such as water or a sugar hydroxyl group.
               
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