946844-58-2Relevant academic research and scientific papers
A new approach to polycyclic azonia cations by ring-closing metathesis
Nunez, Ana,Cuadro, Ana M.,Alvarez-Builla, Julio,Vaquero, Juan J.
, p. 2977 - 2980 (2007)
The ring-closing metathesis (RCM) reaction of N-vinyl-α-(2-styryl) azinium salts, using the Hoveyda-Grubbs catalyst, leads to different tricyclic and tetracyclic azonia cations with moderate to good yields. This is the first time that a highly electron-de
Palladium-Catalyzed Hydrocarbonylative Cyclization Enabled by Formal Insertion of Aromatic Ca? N Bonds into Pd-Acyl Bonds
Zhou, Xibing,Chen, Anrong,Du, Wei,Wang, Yawen,Peng, Yu,Huang, Hanmin
supporting information, p. 9114 - 9118 (2019/11/14)
An efficient new formal insertion strategy via combination of reductive elimination and oxidative addition sequence was reported, in which the transient N-acyliminium ions formed via hydrocarbonylation function as key intermediates. This strategy has enabled a novel palladium-catalyzed hydrocarbonylative cyclization of azaarene-tethered alkenes or dienes via sequential insertion of a Ca? C bond, CO, and a Ca? N bond into palladium-hydride bonds. This method provides a new and highly efficient synthetic approach to quinolizinones and its derivatives with extended ?-conjugated systems, possessing tunable emission wavelengths and good photoluminescence capabilities.
