144343-89-5Relevant articles and documents
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.