Abstract
The CuI-catalyzed domino reaction between 1-(2-bromophenyl)methanamines and amidines using K3PO4 as the base, pivalic acid as the additive, and aerial oxygen as the oxidant gives access to substituted quinazolines in a single step with yields in the range between 43 and 90%. It is assumed that the reaction proceeds as a Cu(I)-catalyzed intermolecular N-arylation followed by an intramolecular nucleophilic substitution and a Cu(II)-catalyzed oxidation. The amidines can be replaced with imidates and the reaction can also be run with 1-(2-iodophenyl)methanamine.
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