A Cu(I)-catalyzed denitrogenative transannulation reaction of pyridotriazoles with terminal alkynes en route to indolizines was developed. Compared to the previously reported Rh-catalyzed transannulation reaction, this Cu-catalyzed method features aerobic conditions and a much broader scope of pyridotriazoles and alkynes.
V. Helan, A. V. Gulevich and V. Gevorgyan, Chem. Sci., 2015, 6, 1928 DOI: 10.1039/C4SC03358B
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