Mixed er-NHC/phosphine Pd() complexes and their catalytic activity in the Buchwald-Hartwig reaction under solvent-free conditions

Mixed er-NHC/phosphine Pd() complexes and their catalytic activity in the Buchwald-Hartwig reaction under solvent-free conditions

A series of novel (NHC)PdCl 2 -PR 3 complexes were synthesized and fully characterized by 1 H, 13 C, 31 P NMR and FT-IR spectroscopy. These complexes showed high catalytic activity toward solvent-free Buchwald-Hartwig amination. Both primary and secondary amines were efficiently utilized under the s...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2019-03, Vol.48 (1), p.3447-3452
Hauptverfasser: Ageshina, Alexandra A, Sterligov, Grigorii K, Rzhevskiy, Sergey A, Topchiy, Maxim A, Chesnokov, Gleb A, Gribanov, Pavel S, Melnikova, Elizaveta K, Nechaev, Mikhail S, Asachenko, Andrey F, Bermeshev, Maxim V
Format: Artikel
Sprache:eng
Schlagworte:
Amines
Aromatic compounds
Carbazoles
Carbon 13
Catalysis
Catalytic activity
Chemical synthesis
Crystallography
Fourier transforms
Infrared spectroscopy
NMR
Nuclear magnetic resonance
Solvents
Spectrum analysis
X-ray diffraction
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Zusammenfassung:A series of novel (NHC)PdCl 2 -PR 3 complexes were synthesized and fully characterized by 1 H, 13 C, 31 P NMR and FT-IR spectroscopy. These complexes showed high catalytic activity toward solvent-free Buchwald-Hartwig amination. Both primary and secondary amines were efficiently utilized under the same reaction conditions. The solvent-free synthesis of valuable N -aryl carbazoles and similar N-heterocyclic systems was described. A single catalyst for solvent-free Buchwald-Hartwig amination with both primary and secondary amines.
ISSN:1477-9226
1477-9234
DOI:10.1039/c9dt00216b