1,4-Diazabicyclo[2.2.2]octane (DABCO)-Catalyzed [4+2] Domino Reaction of Allenoates: Synthesis of Benzo[4,5]thieno-[3,2- b]pyran Derivatives
Jia Jiru, Yu Aimin, Liu Xuguang, Meng Xiangtai
Chin. J. Org. Chem. . 2019, (8): 2175 -2182 .  DOI: 10.6023/cjoc201904082