53. KMnO4/AcOH-mediated C3-selective direct arylation of coumarins with arylboronic acids
      Jin-Wei Yuan,* Liang-Ru Yang, Qiu-Yue Yin, Pu Mao, and Ling-Bo Qu*
      RSC Advance, 2016, 6, 35936-35944. <DOI: 10.1039/c6ra04787d>