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Highly symmetrical conjugated chains

The choice of the most effective catalyst system is highly dependent on the type of olefin under consideration. Polymerization of CO and aliphatic a-olefines is most suitably carried out employing a catalytic system modified with a symmetrical, Cs-bridged aryldiphosphine ligand (2,71). However, these systems are not suitable for copolymerization of CO and styrene (41). For this reaction palladium(II)-based catalysts modified with a conjugated diimine (39,41), a bisoxazoline (43,44), a phosphine-phosphite (43), or a phosphine-imine ligand (43) have been employed, in, under chain-transfer conditions, combination with an oxidant promotor, such as 1,4-benzoquinone or 1,4-naphthoquinone (39-47,72), or a polar, acidic type of solvent (73,74). [Pg.6223]

See other pages where Highly symmetrical conjugated chains is mentioned: [Pg.813]    [Pg.34]    [Pg.124]    [Pg.120]    [Pg.122]    [Pg.111]    [Pg.77]    [Pg.184]    [Pg.124]    [Pg.377]    [Pg.518]    [Pg.343]    [Pg.152]    [Pg.949]    [Pg.53]    [Pg.649]    [Pg.64]    [Pg.356]    [Pg.212]    [Pg.49]    [Pg.50]    [Pg.216]    [Pg.324]    [Pg.4]    [Pg.16]    [Pg.481]    [Pg.701]    [Pg.312]    [Pg.382]    [Pg.245]    [Pg.121]    [Pg.123]   
See also in sourсe #XX -- [ Pg.94 , Pg.99 ]



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Chain conjugation

Conjugated chain

Symmetrical Chains

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