Isospecific polymerization of epoxides with homogeneous cobalt-based catalysts

INOR 282

Wataru Hirahata, wh98@cornell.edu1, Emil B. Lobkovsky2, and Geoffrey W. Coates, gc39@cornell.edu1. (1) Department of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca, NY 14853, (2) Department of Chemistry & Chemical Biology, Cornell University, Baker Laboratory, Ithaca, NY 14853
We have recently found new highly active homogeneous cobalt-based catalysts for the isospecific polymerization of racemic terminal epoxides, such as propylene oxide. Optimization of the polymerization systems was achieved by varying ligand structure of the Co complexes and polymerization conditions. The effect of these variations on the selectivity and activity of the catalysts will be discussed along the mechanism of the polymerization.
 

Organometallic Catalysts
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Sci-Mix

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007