Hydrodefluorination of Fluorobenzene and 1,2-Difluorobenzene under Mild Conditions over Rhodium Pyridylphosphine and Bipyridyl Complexes Tethered on a Silica-Supported Palladium Catalyst

Hydrodefluorination of Fluorobenzene and 1,2-Difluorobenzene under Mild Conditions over Rhodium Pyridylphosphine and Bipyridyl Complexes Tethered on a Silica-Supported Palladium Catalyst

Fluorobenzene and 1,2-difluorobenzene are defluorinated under very mild conditions by H2 (4 atm) at 70 °C in the presence of NaOAc. The heterogeneous catalysts for these reactions contain the rhodium pyridylphosphine (1) and bipyridyl (2) complexes [Rh(COD)(1)]BF4 and [Rh(COD)(2)]BF4 tethered to het...

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Veröffentlicht in:Organometallics 1999-06, Vol.18 (12), p.2285-2287
Hauptverfasser: Yang, Hong, Gao, Hanrong, Angelici, Robert J
Format: Artikel
Sprache:eng
Schlagworte:
BIPYRIDINES
CATALYST SUPPORTS
CATALYSTS
DEHALOGENATION
ENVIRONMENTAL SCIENCES
FLUORINATED AROMATIC HYDROCARBONS
PALLADIUM
PYRIDINIUM COMPOUNDS
RHODIUM COMPLEXES
SILICA
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Beschreibung
Zusammenfassung:Fluorobenzene and 1,2-difluorobenzene are defluorinated under very mild conditions by H2 (4 atm) at 70 °C in the presence of NaOAc. The heterogeneous catalysts for these reactions contain the rhodium pyridylphosphine (1) and bipyridyl (2) complexes [Rh(COD)(1)]BF4 and [Rh(COD)(2)]BF4 tethered to heterogeneous Pd−SiO2.
ISSN:0276-7333
1520-6041
DOI:10.1021/om990151e