DIMERIZATION OF ETHYLENE CATALYZED BY BIS(TRIPHENYLPHQSPHINE)PENTACHLOROPHENYL(CHLORO)NICKEL(II) ACTIVATED WITH SILVER SALT

Abstract
Bis(triphenylphosphine)pentachlorophenyl(chloro)nickel(II) activated with silver perchlorate effectively catalyzes ethylene dimerization in bromobenzene at 0°C under 76 cmHg. The catalytic activity was further enhanced by adding a catalytic amount of triphenylphosphine. An analogous phenyldimethylphosphine complex, however, was much less active for ethylene dimerization.