The coupling of HSiEt3 and related silanes to β‐diiminate ligands is achieved through a series of SiH, CH, and SiC bond‐breaking and bond‐forming reactions. Complex 1 (see scheme) loses an Et(Si) group as ethane and couples the remaining SiEt2H fragment to a benzylic methyl group of the ligand skeleton. According to DFT calculations, the reaction involves silylene intermediates.
Die Kupplung von HSiEt3 und verwandten Silanen an β‐Diiminat‐Liganden erfordert eine Reihe von Si‐H‐, C‐H‐ und Si‐C‐Bindungsbrüchen und ‐bildungen. Der Komplex 1 verliert eine Et(Si)‐Gruppe als Ethan und kuppelt das verbleibende SiEt2H‐Fragment an eine benzylische Methylgruppe des Ligandgerüsts. DFT‐Rechnungen zufolge verläuft die Reaktion über Silylen‐Intermediate.
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