An outstanding catalyst for the oxygen-mediated oxidation of arylcarbinols, arylmethylene and arylacetylene compounds
G Urgoitia1, R SanMartin, M T Herrero
1Department of Organic Chemistry II, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena auzoa, z/g 48940 Leioa, Spain. raul.sanmartin@ehu.es.
Abstract:
A convenient and sustainable protocol for the aerobic oxidation of benzyl alcohols to carbonyl compounds, based on the use of 1,2,4-triazole-type ligands and nickel(II) bromide, is described. This combination leads to the formation of an exceedingly active, enzyme-like system that allows for other oxidative processes, such as benzylic C-H oxidation and oxygen-mediated cleavage of C-C triple bond, a pioneering procedure for transformation of alkynes into carboxylic acids.
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