Abstract
Golden circle: Two gold-catalyzed oxidative cyclizations of 1,5-enynes using 8-methylquinoline N-oxide are presented (see example). Experimental results indicate that both reactions proceed through prior oxidation of alkyne to form α-carbonyl intermediates and subsequent intramolecular carbocyclization. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Vasu, D., Hung, H. H., Bhunia, S., Gawade, S. A., Das, A., & Liu, R. S. (2011). Gold-catalyzed oxidative cyclization of 1,5-enynes using external oxidants. Angewandte Chemie - International Edition, 50(30), 6911–6914. https://doi.org/10.1002/anie.201102581
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