Regiocontrol in cellulose chemistry: principles and examples of etherification and esterification

摘要

Regiocontrol means site-selective reactions of cellulose and related polysaccharides that form functionalization patterns essential for new properties. Experimental results are presented in synthesis, analysis, and subsequent reactions of silylethers, cellulose ptoluenesulfonates, and deoxy-thiosulfates (Bunte salts). Regiocontrol succeeds by selective loosening supramolecular structures, as well as by selective protection, activation, and migration of functional groups.