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Oximinoalkylamines were found to be efficient ligands for acceleration of the CuAAC reaction. ‘Mixed’ oxime–triazole ligands TzβOx2 and Tz2βOx demonstrate an approximately 10-fold enhanced acceleration effect compared to commonly employed ligand TBTA using 0.1mol% of the [Cu]/L catalytic system. The optimal catalytic system based on readily available TzβOx2 provided 1,4-disubstituted triazoles in...
A general strategy for the assembly of previously unknown tris(β,β,γ-oximinoalkyl)amines from aliphatic nitro compounds and methyl vinyl ketone is described. The strategy involves N,N-bis(siloxy)enamines as key intermediates. The latter are accessible by double silylation of alkylnitro compounds. Nickel(II) and copper(II) complexes of tris(β,β,γ-oximinoalkyl)amines are prepared and structurally characterized.
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