33699-98-8Relevant academic research and scientific papers
Schiff base transition metal complexes for Suzuki–Miyaura cross-coupling reaction
Ansari, Rasheeda M,Bhat, Badekai Ramachandra
, p. 1483 - 1490 (2017/09/25)
Abstract: Schiff base ligand and its complex with iron (Fe), cobalt (Co), nickel (Ni) and copper (Cu) ions were synthesized using 4-aminoacetophenone and salicylaldehyde and characterized. FTIR spectrum shows that bidentate coordination of metal ions with ligand where O, N are electron donating sites of azomethine group. The geometry of the complexes was deduced from the calculated magnetic moment values and SCXRD analysis. All complexes were studied for their catalytic activity in Suzuki–Miyaura cross-coupling reaction with Cu–L complex showing excellent coupling yield among others. The catalytic activity data show promising results in coupling efficiency, employing cheap, abundant and green metals. Graphical Abstract: Synopsis The transition metal Schiff base complexes synthesized and characterized by SCXRD, Mass spectrometry, TGA, UV–Vis and FTIR analysis. Magnetic susceptibility measurements were also examined to know the plausible geometry of the complex. The synthesized complexes were systematically investigated for Suzuki–Miyaura cross-coupling reactions and optimized to enhance the yield of the Suzuki reaction. [Figure not available: see fulltext.].
Synthesis and reactivity of the copper (II) complexes of N-α-acetophenyl-X-salicylaldimines (α = 4 or 3, X = H, 5-Br or 3-COOH). Molecular structure of bis-(N-4-acetophenylsalicylaldiminato) copper(II)
De, Rajib Lal,Banerjee, Indrajit,Guha, Subhadra,Mukherjee, Alok K.
, p. 1380 - 1384 (2007/10/03)
The copper (II) complexes of the Schiff bases. N-α-acetophenyl-X-salicylaldimines (α = 4 or 3, X = H. 5-Br. 3-COOH) have been synthesised and characterised by UV-visible, IR, MS, ESR spectroscopy and magnetic suceptibility measurements. The solid state structure of Cu(SACPNX)2 (I) determined by single-crystal X-ray diffraction reveals a distorted square-planar metal coordination involving two imine N- and two deprotonated phenolate O atoms of two bidentate Schiff ligands in trans- arrangement. Both the Schiff bases and their copper (II) complexes undergo facile transamination reactions.
