Sequential glycosidation

Iteration and sequential glycosidation in a stepwise manner or by block synthesis (e.g., disaccharide donor and disaccharide acceptor for tetrasaccharide synthesis)... 

In 1993, the first of many reports of one-pot glycosylation reactions appeared. Raghavan and Kahne9 used TfOH (or triflic anhydride) to sequentially activate phenylsulfoxide glycosides that differed in their substitution pattern at the para... 

In 1994, Takahashi and coworkers10 11 described another one-pot synthesis of trisaccharides using sequential additions of various glycoside donors and their corresponding activators.10 The first transformation relies on the activation of a... 

A convenient and frequently used procedure is sequential solvent extraction. A first step, with dichloromethane, for example, will extract flavonoid aglycones and less polar material. A subsequent step with an alcohol will extract flavonoid glycosides and polar constituents. 

Glycogen phosphorylase sequentially cleaves the cx(1 -h>4) glycosidic bonds between the glucosyl residues at the nonreducing ends of the glycogen chains by simple phosphorolysis until four glucosyl units remain on each chain before a branch point (Figure 11.7). [Note ... 

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