Synthesis of Dibenzo[c,e]oxepin-5(7H)-ones from Benzyl Thioethers and Carboxylic Acids: Rhodium-Catalyzed Double C-H Activation Controlled by Different Directing Groups

Xi-Sha Zhang, Yun-Fei Zhang, Zhao-Wei Li, Zhang-Jie Shi* Angew. Chem. In. Ed. 2015, 54, 5478-5482.