Copper-Catalyzed [2+2+2] Modular Synthesis of Multisubstituted Pyridines: Alkenylation of Nitriles with Vinyliodonium Salts
作者:Jinyu Sheng、Yong Wang、Xiang Su、Ru He、Chao Chen
DOI:10.1002/anie.201700696
日期:2017.4.18
A [2+2+2] modular synthesis of multisubstituted pyridines, with excellent regioselectivity, has been realized by copper catalysisand involves three distinct components: vinyliodonium salts, nitriles, and alkynes. The reactions proceeded with the facile formation of an aza‐butadienylium intermediate by alkenylation of the nitrile with a vinyliodonium salt. Moreover, the alkynes in the reaction were
A Concise Construction of Polycyclic Quinolines via Annulation of ω-Cyano-1-alkynes with Diaryliodonium Salts
作者:Yong Wang、Chao Chen、Shu Zhang、Zhenbang Lou、Xiang Su、Lirong Wen、Ming Li
DOI:10.1021/ol402164s
日期:2013.9.20
A concise construction of polycyclic quinolines via intramolecular [2 + 2 + 2] annulation of omega-cyano-1-alkynes with diaryliodonium salts was realized. The process produced polycyclic quinolines in high yields with readily available staring materials and was tolerated with halogen substituents.