Synthesis and characterization of a gold(I) bis(triazolylidene) complex featuring a large [(TpMe2)2K] anion
Mendoza Espinosa, Daniel
2018
Armando Priante-Flores, Verónica Salazar-Pereda, Arnold L. Rheingold, Daniel Mendoza-Espinosa, New J. Chem., 2018,42, 15533-15537. DOI:10.1039/C8NJ03318H
Abstract
In the quest of heteroleptic gold(I) complexes containing triazolylidenes (MIC) and TpMe2 ligands, we discovered that reaction of the MIC?Au?I complex 2 with potassium hydrotris-(3,5-dimethyl-1-pyrazolil) borate (KTpMe2) produces an unexpected bis(triazolylidene) gold(I) complex featuring a large [(TpMe2)2K] anion (3). An optimized synthesis was achieved by reacting a preformed bis(triazolylidene)Au(I) complex (2a) with two equivalents of KTpMe2 (81%). Full characterization and preliminary catalytic results demonstrate the high performance of complex 3 in the formation of several oxazoline derivatives.
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