Step-Controlled Povarov-Type Reaction with 1,2-Dihydroquinolines as Precursors of Dienophiles: Direct Synthesis of Spirocyclic Bi-tetrahydroquinolines and Functionalized 1,2-DihydroquinolinesXuwen Ren, Zhuo Tang, Jin Huang et al.|Organic Letters|2016Cited by 25