Lewis Acid-Triggered Selective Zincation of Chromones, Quinolones, and Thiochromones: Application to the Preparation of Natural Flavones and Isoflavones

Lydia Klier , Tomke Bresser , Tobias A. Nigst , Konstantin Karaghiosoff , and Paul Knochel

J. Am. Chem. Soc., 2012, 134 (33), pp 13584–13587

DOI: 10.1021/ja306178q