Copolymerization of CHO/CO<sub>2</sub> catalyzed by a series of aluminum amino-phenolate complexes and insights into structure–activity relationships
Hart Plommer, Laura Stein, Jennifer N. Murphy, Nduka Ikpo, Nelaine Mora‐Diez, Francesca M. Kerton
Abstract
in the presence and absence of PPNCl. When coupled with 1 equiv. PPNCl, the complexes exhibit similar activities and the best selectivity for poly(cyclohexenecarbonate) vs. the cyclic product, cyclohexene carbonate, was obtained with the morpholinyl complex (ca. 90%) whereas significantly lower selectivities (<1-63%) were obtained with the other complexes. Preliminary DFT calculations investigating this difference in selectivity were carried out by analyzing the aluminum partial atomic charges in the Al-carbonate intermediates.
Topics & Concepts
Cyclohexene oxideMethyleneChemistryCatalysisSelectivityCyclohexeneMedicinal chemistryLigand (biochemistry)CopolymerStereochemistryPolymer chemistryOrganic chemistryPolymerBiochemistryReceptorCarbon dioxide utilization in catalysisOrganometallic Complex Synthesis and CatalysisCO2 Reduction Techniques and Catalysts