TY - JOUR
T1 - Bimetallic coordination insertion polymerization of unprotected polar monomers
T2 - Copolymerization of amino olefins and ethylene by dinickel bisphenoxyiminato catalysts
AU - Radlauer, Madalyn R.
AU - Buckley, Aya K.
AU - Henling, Lawrence M.
AU - Agapie, Theodor
PY - 2013/3/13
Y1 - 2013/3/13
N2 - Dinickel bisphenoxyiminato complexes based on highly substituted p- and m-terphenyl backbones were synthesized, and the corresponding atropisomers were isolated. In the presence of a phosphine scavenger, Ni(COD)2, the phosphine-ligated syn-dinickel complexes copolymerized α-olefins and ethylene in the presence of amines to afford 0.2-1.3% α-olefin incorporation and copolymerized amino olefins and ethylene with a similar range of incorporation (0.1-0.8%). The present rigid catalysts provide a bimetallic strategy for insertion polymerization of polar monomers without masking of the heteroatom group. The effects of the catalyst structure on the reactivity were studied by comparisons of the syn and anti atropisomers and the p- and m-terphenyl systems.
AB - Dinickel bisphenoxyiminato complexes based on highly substituted p- and m-terphenyl backbones were synthesized, and the corresponding atropisomers were isolated. In the presence of a phosphine scavenger, Ni(COD)2, the phosphine-ligated syn-dinickel complexes copolymerized α-olefins and ethylene in the presence of amines to afford 0.2-1.3% α-olefin incorporation and copolymerized amino olefins and ethylene with a similar range of incorporation (0.1-0.8%). The present rigid catalysts provide a bimetallic strategy for insertion polymerization of polar monomers without masking of the heteroatom group. The effects of the catalyst structure on the reactivity were studied by comparisons of the syn and anti atropisomers and the p- and m-terphenyl systems.
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U2 - 10.1021/ja4004816
DO - 10.1021/ja4004816
M3 - Article
C2 - 23425209
AN - SCOPUS:84874994414
SN - 0002-7863
VL - 135
SP - 3784
EP - 3787
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 10
ER -