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Updated: Jun 28, 2026
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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Study of Cu(II)-hydrazine-6-methylpicolinaldehyde system: A new "in situ" reaction
1Department of Analytical Chemistry Faculty of Sciences University of Sevilla Sevilla, Spain.
Abstract:
The Cu(II)-hydrazine-6-methylpicolinaldehyde system in solution is studied. The "in situ" reactions, based on the formation of a ligand by condensation of an amine and an aldehyde in the presence of the metal ion, and the consequent formation of the coloured Cu(I)-azine and Cu(l)-hydrazone complexes are reported. A new mode of homogeneous colour development, based on the exchange of groups in the ligand with the metal ion present, is also described. The results are compared with those obtained with the previously synthesized reagents.
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The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.
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