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Ethylene dimerization into 1-butene using 2-pyridylphosphole nickel catalysts

Authors
Journal
Journal of Catalysis
0021-9517
Publisher
Elsevier
Publication Date
Volume
226
Issue
1
Identifiers
DOI: 10.1016/j.jcat.2004.05.008
Keywords
  • Nickel–Phosphole
  • Ethylene
  • Oligomerization

Abstract

Abstract 2-(2-Pyridyl)phospholes have been evaluated as ligands for the nickel-catalyzed oligomerization of ethylene. Under mild homogeneous reaction conditions, high catalytic activities (>15 cycles per second) were recorded. The selectivity depends on the ethylene pressure. At 41 bar, high C 4 fraction contents (until 97%) and high 1-butene selectivities (80% of the C 4 fraction) were reached. This behavior is interpreted as a consequence of the steric hindrance of the intermediate cationic 2-pyridylphosphole nickel hydrides.

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