We hypothesized that <i>ω</i>-alkenyl groups and substituents of cellobiose derivatives would differently affect selectivity of olefin cross-metathesis (CM) reactions. Several pairs of cellobiose derivatives with the olefin handles at their reducing-ends were subjected to CM reactions. We found that the ratio of cross- and self-metathesis products varied with the chemical structures of <i>ω</i>-alkenyl groups on the cellobiose derivatives. In contrast, the difference in substituents did not influence CM selectivity as expected. This talk will address model studies of this versatile synthetic method for cellulosic diblock copolymers.

Influence of the chemical structures of end-functionalized cellobiose derivatives on olefin cross-metathesis: Model studies of cellulosic diblock copolymer synthesis

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