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Fluoride Displacement by Lithium Reagents. An Improved Method for the Synthesis of Nickel Hydroxo, Alkoxo, and Amido Complexes

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posted on 06.06.2005, 00:00 by Juan Cámpora, Inmaculada Matas, Pilar Palma, Claudia Graiff, Antonio Tiripicchio
The complex Ni(Me)(F)(dippe) undergoes clean fluoride displacement reactions with Li(OH), Li(OtBu), and Li(NC4H8), affording the corresponding cis hydroxo, alkoxo, and amido methyl derivatives. These compounds display limited thermal stability and decompose by β-hydrogen elimination or disproportionation processes under mild conditions.