Cationic Aluminium Complexes as Catalysts for Imine Hydrogenation

Cationic Aluminium Complexes as Catalysts for Imine Hydrogenation

Strongly Lewis acidic cationic aluminium complexes, stabilized by β–diketiminate (BDI) ligands and free of Lewis bases, have been prepared as their B(C6F5)4− salts and were investigated for catalytic activity in imine hydrogenation. The backbone (R1) and N (R2) substituents on the R1,R2BDI ligand (R...

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Veröffentlicht in:Chemistry : a European journal 2021-05, Vol.27 (28), p.7756-7763
Hauptverfasser: Friedrich, Alexander, Eyselein, Jonathan, Elsen, Holger, Langer, Jens, Pahl, Jürgen, Wiesinger, Michael, Harder, Sjoerd
Format: Artikel
Sprache:eng
Schlagworte:
Acidity
Aluminium
Aluminum
Benzaldehyde
Catalysts
Catalytic activity
Cations
Chemistry
Chemistry, Multidisciplinary
DFT
Dipping
Hydrogenation
imine
Imines
Ligands
Mathematical analysis
Physical Sciences
Salts
Science & Technology
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Zusammenfassung:Strongly Lewis acidic cationic aluminium complexes, stabilized by β–diketiminate (BDI) ligands and free of Lewis bases, have been prepared as their B(C6F5)4− salts and were investigated for catalytic activity in imine hydrogenation. The backbone (R1) and N (R2) substituents on the R1,R2BDI ligand (R1,R2BDI=HC[C(R1)N(R2)]2) influence sterics and Lewis acidity. Ligand bulk increases along the row Me,DIPPBDI
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.202100641