ethenetricarboxylate derivatives 1 with 2-ethynylanilines has been examined. Reaction of 1,1-diethyl 2-tert-butyl ethenetricarboxylate 1b with 2-(trimethylsilylethynyl)aniline substrates in the presence of Zn(OTf)2 gave bridged quinolinederivatives in 43−85% yield. The reaction of 1b with 2′-aminoacetophenone also gave the bridged quinolinederivative in 41% yield. Thermal reaction of bridged quinolines (180−190