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Synthesis and characterization of copper complexes with tripodal ligands bearing amino acid groups
Author(s) -
Gawlig Christopher,
Jung Jannis,
Mollenhauer Doreen,
Schindler Siegfried
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000320
Subject(s) - thioanisole , imidazole , chemistry , ligand (biochemistry) , copper , histidine , tripodal ligand , amine gas treating , chirality (physics) , stereochemistry , hydrogen peroxide , catalysis , amino acid , medicinal chemistry , polymer chemistry , organic chemistry , receptor , biochemistry , chiral symmetry breaking , physics , quantum mechanics , quark , nambu–jona lasinio model
The tripodal ligand (2‐aminoethyl) bis (2‐pyridylmethyl)amine (uns‐penp), known for its Cu/O 2 intermediates, was modified at one side arm by a selection of amino acids. With L‐Tyrosine (Tyr), L‐Histidine (His) and L‐Lysine (Lys) it was possible to introduce chirality into the tripodal ligand system and to investigate the corresponding copper(I) complexes [Cu{L‐His(BPh 3 )uns‐penp}], [Cu(L‐Lys)uns‐penp]OTf and [Cu(L‐Tyr)uns‐penp]OTf. [Cu{L‐His(BPh 3 )uns‐penp}] could be structurally characterized and represents the first example of a copper(I) complex with a coordinated imidazole ring of the histidine ligand. Furthermore, these complexes demonstrated catalytic activity for the oxygenation of thioanisole with hydrogen peroxide as an oxidant.