Synthesis of cis,syndiotactic ROMP polymers containing alternating enantiomers.

Abstract

Ring-opening metathesis polymerization (ROMP) of rac-endo,exo-5,6-dicarbomethoxynorbornene (inter alia) yields a cis,syndio,alt-polymer, one in which the sequential units in the cis,syndiotactic polymer consist of alternating enantiomers. Cis selectivity arises through addition of the monomer to produce an all-cis-metallacyclobutane intermediate, while syndioselectivity and alternating enantiomer structures arise as a consequence of inversion of configuration at the metal center with each metathesis step.

DOI: 10.1021/ja110949f

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@article{Flook2011SynthesisOC, title={Synthesis of cis,syndiotactic ROMP polymers containing alternating enantiomers.}, author={Margaret McGuigan Flook and Victor Wee Lin Ng and Richard R Schrock}, journal={Journal of the American Chemical Society}, year={2011}, volume={133 6}, pages={1784-6} }