Copper-Catalyzed the Synthesis of 3-Trifluoromethylchromone via Trifluoromethyl Radical Addition Tandem Cyclization Reaction of 2-Hydroxyphenyl Enaminones
Keying Du, Zhanming Zhang, Weijian Sheng
Chinese Journal of Organic Chemistry . 2021, (8): 3242 -3248 .  DOI: 10.6023/cjoc202102007