Mild and Functional Group Tolerant Method for Tandem Palladium-Catalyzed Carbocyclization-Coupling of ε-Acetylenic β-Ketoesters with Aryl Bromides and Chlorides
作者:Wojciech Chaładaj、Sylwester Domański
DOI:10.1002/adsc.201600175
日期:2016.6.2
report a new protocol for the annulative difunctionalization of acetylenes via tandem carbocyclization–coupling of ε‐acetylenic β‐ketoesters with aryl and heteroaryl bromides and chlorides catalyzed by the palladium species derived from an air‐ and moisture‐stable palladacyclic precatalyst. In the tandem process, the palladiumcomplex combines appropriate carbophilic Lewis acidity and redox activity to catalyze
The development of a novel cooperative catalytic system for an amine–silver co-catalyzed Conia-ene reaction of alkyne-tethered C–H-acidic compounds is reported.