Aminobis phosphorane

However, homogeneous catalysts obtained from nickel (II) complexes, e.g. bisallylnickel Ni(All)2, and bis(trimethylsilyl)aminobis (trimethylsilylimino) phosphorane (Me3Si)2NP(=NSiMe3)2 in toluene solution deserve special attention [182] ... [Pg.85]

The polymerisation of ethylene in the presence of an Ni(II) complex containing a ligand originating from aminobis(imino)phosphorane leads to short-chain branched polyethylene [182]. This is due to the copolymerisation of ethylene with short-chain 1-alkenes formed in such a system. [Pg.86]

Catalysts capable of 2, co-linkage of a-olefins are obtained from the reaction of Ni(0) or Ni(II) compounds, such as Ni(Cod)2 or Ni(All)2 respectively, with aminobis(imino)phosphorane, such as (Me3Si)2NP(=NSiMe3)2, preferably used in equimolar ratio the catalysts are characterised by the appearance of Ni(II) species as has been shown by scheme (18) [182]. [Pg.175]

The aminobis(imino)phosphorane P[N(SiMe3)2](NSiMc3)2 undergoes cycloaddition with EX (=A1C13, SnCU, TiCU, NbClj, or FeCU) to yield X[(Mc3Si)2N]-... [Pg.703]

Most of the nickel catalysts with anionic ligands discussed above will only dimerize a-olefins. Notable exceptions are the oligomerization of a-olefins by the aminobis(imino)phosphorane nickel catalyst (13). ... [Pg.327]

The nickel aminobis (imino) phosphorane catalyst polymerizes linear and singly branched a-olefins to... [Pg.329]

Scheme 8. 2, -Enchainment of a-Olefins by Aminobis(imino)phosphorane Nickel Catalyst...

Mohring, V.M. and Fink, G. (1985) Novel polymerization of a-olefins with the catalyst system nickel/aminobis(imino) phosphorane. Angewandte Chemie, International Edition, 24,1001-1003. [Pg.311]

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