Sc(OTf) 3 Catalyzed Oxo-Michael Addition to o-Quinone Methides by Alcohols
Zhang Shuo, Peng Dan, Zhao Ning, Yu Yitao, Wang Feng, Liu Hailong, Yi Gang
Chin. J. Org. Chem. . 2019, (2): 555 -560 .  DOI: 10.6023/cjoc201807017