Palladium-Catalyzed Decarboxylative Cross-Coupling Reactions: A Route for Regioselective Functionalization of Coumarins
作者:Farnaz Jafarpour、Samaneh Zarei、Mina Barzegar Amiri Olia、Nafiseh Jalalimanesh、Soraya Rahiminejadan
DOI:10.1021/jo302778d
日期:2013.4.5
A straightforward, regioselective, and step-economical ligand-free palladium-catalyzed decarboxylative functionalization of coumarin-3-carboxylic acids is devised. This protocol is compatible with a wide variety of electron-donating and -withdrawing substituents and allows for construction of various biologically important π-electron extended coumarins.
Regioselective palladium-catalyzed olefination of coumarinsvia aerobic oxidative Heck reactions
作者:Minsik Min、Yechan Kim、Sungwoo Hong
DOI:10.1039/c2cc37676h
日期:——
Pd-catalyzed oxidative Heck reactions of coumarins were developed via simultaneous C–H functionalization at the C3 position of coumarins under aerobic conditions.