1. Z -Selective ruthenium metathesis catalysts: Comparison of nitrate and nitrite X-type ligands
- Author
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Robert H. Grubbs, Tonia S. Ahmed, and Melanie A. Pribisko
- Subjects
chemistry.chemical_element ,Metathesis ,Medicinal chemistry ,Article ,Catalysis ,Ruthenium ,Inorganic Chemistry ,chemistry.chemical_compound ,Nitrate ,chemistry ,Polymerization ,Materials Chemistry ,Ring-opening metathesis polymerisation ,Organic chemistry ,Physical and Theoretical Chemistry ,Nitrite ,Acyclic diene metathesis - Abstract
Two new Ru-based metathesis catalysts, 3 and 4, have been synthesized for the purpose of comparing their catalytic properties to those of their cis-selective nitrate analogues, 1 and 2. Although catalysts 3 and 4 exhibited slower initiation rates than 1 and 2, they maintained high cis-selectivity in homodimerization and ring-opening metathesis polymerization reactions. Furthermore, the nitrite catalysts displayed higher cis-selectivity than 2 for ring-opening metathesis polymerizations, and 4 delivered higher yields of polymer.
- Published
- 2014
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