1225289-40-6Relevant articles and documents
Practical Synthesis of α-Trifluoromethylated Pyridines Based on Regioselective Cobalt-Catalyzed [2+2+2] Cycloaddition using Trifluoromethylated Diynes with Nitriles
Kumon, Tatsuya,Yamada, Shigeyuki,Agou, Tomohiro,Fukumoto, Hiroki,Kubota, Toshio,Hammond, Gerald B.,Konno, Tsutomu
, p. 1912 - 1922 (2021)
Regioselective cobalt-catalyzed [2+2+2] cycloaddition using fluorine-containing diynes with nitriles was described. Cycloaddition of fluorinated diynes with nitriles under the influence of CoCl2(phen), zinc bromide, and zinc dust in dichloroethane at 80 °C for 3 h took place smoothly, exclusively affording the corresponding α-fluoroalkylated pyridines in excellent yields. In addition, dinitriles as substrate were also found to be suitable for this reaction, giving the corresponding fluoroalkylated bipyridine derivatives in excellent yields. (Figure presented.).