Bulletin of the Academy of Sciences of the USSR Division of Chemical Science p. 448 - 451 (1990)
Update date:2022-08-30
Topics:
Furman, D. B.
Ivanov, A. O.
Olenin, A. Yu.
Vasil'kov, A. Yu.
Munshieva, M. K.
et al.
When activated by Et2AlCl phosphine-containing homogeneous nickel complexes and their heterogenized analogs (HMC) formed on silochrome S-120 modified by NH2 and N(PPh2)2 groups differ significantly in their effectiveness in ethylene dimerization.The catalytic activity of Ni-HMC-Et2AlCl depends on how the HMC was formed.Ni-HMC-I obtained by ligand exchange on chemically modified silochrome is ca. 5-15 times more effective than Ni-HMC-II synthesized from the gas phase.The selectivity in formation of α-olefins (ΣC4 + ΣC6) is ca. 4-5 times higher in the presence of Ni-HMC than for its homogeneous analogs.
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