Stereoselectivity in metallocene-catalyzed coordination polymerization of renewable methylene butyrolactones: From stereo-random to stereo-perfect polymers

Coordination polymerization of renewable α-methylene-γ-(methyl) butyrolactones by chiral C 2-symmetric zirconocene catalysts produces stereo-random, highly stereo-regular, or perfectly stereo-regular polymers, depending on the monomer and catalyst structures. Computational studies yield a fundamental understanding of the stereocontrol mechanism governing these new polymerization reactions mediated by chiral metallocenium catalysts. © 2012 American Chemical Society.

Chen, X., Caporaso, L., Cavallo, L., & Chen, E. Y.-X. (2012). Stereoselectivity in Metallocene-Catalyzed Coordination Polymerization of Renewable Methylene Butyrolactones: From Stereo-random to Stereo-perfect Polymers. Journal of the American Chemical Society, 134(17), 7278–7281. doi:10.1021/ja301811s

We thank the U.S. National Science Foundation (NSF-1012326 to E.Y.-X.C.) and the National Science Foundation of China (no. 21072120 to X.C.) for financial support. L. Cavallo thanks the HPC team of Enea ( for use of the ENEA-GRID and HPC facilities CRESCO ( in Portici, Italy. We also thank Wesley Mariott and Garret Miyake for some initial experiments on the MBL polymerization by catalyst 1.

American Chemical Society (ACS)

Journal of the American Chemical Society


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