219927-40-9Relevant academic research and scientific papers
Cationic alkyl aluminium ethylene polymerization catalysts based on monoanionic N,N,N-pyridyliminoamide ligands
Bruce, Michael,Gibson, Vernon C.,Redshaw, Carl,Solan, Gregory A.,Andrew,White,Williams, David J.
, p. 2523 - 2524 (1998)
Treatment of the 2,6-bis(imino)pyridines {[2,6-(ArNCR)2C5H3N]} [R = H, Ar = 2,6-i-Pr2C6H3 or 2,4,6-Me3C6H2; R = Me, Ar = 2,6-i-Pr2C6H3] With AlMe3 at elevated temperature gives, via migration of a methyl group to the ligand backbone, the pseudo-five coordinate dimethylaluminium species {2-[ArNCR((Me)],6-(ArNCR)C5H3N}-AlMe2 (1a-c); upon treatment with B(C6F5)3, 1a-c cleanly afford the cationic methyl complexes [{2-[ArNCR(Me)],6-(ArNCR)C5H3N}AlMe]+[MeB(C6F5)3]-(2a-c) which are active for ethylene polymerization.
