||Synthesis of Optical Active Polystyrene Catalyzed by Monophosphine Pd Complexes
Synthesis of Optical Active Polystyrene Catalyzed by Monophosphine Pd Complexes
小坂田, 耕太郎 ,
OSAKADA, KOHTARO ,
竹内, 大介TAKEUCHI, DAISUKE
Angewandte Chemie International Edition in English
8370 , 2016-05
Cationic PdII monophosphine complexes derived from α- and β-cyclodextrins (CDs) promote the homopolymerization of styrene under carbon monoxide pressure. Although reversible CO coordination takes place under catalytic conditions according to 13C NMR studies with 13C-enriched CO, both complexes catalyze the formation of CO-free styrene polymers. These macromolecules display optical activity as a result of the presence of stereoregular sequences within the overall atactic polymer.