Palladium-catalyzed C–H activation of simple arenes and cascade reaction with nitriles: access to 2,4,5-trisubstituted oxazoles. - Dai, Ling; Yu, Shuling; Shao, Yinlin; Li, Renhao; Chen, Zhongyan; Lv, Ningning; Chen, Jiuxi (Chemical Communications, 2021)