An efficient catalytic system for the C–Holefination of arenes with different allylic substrates is reported. The catalytic system is based on Pd(OAc)2 and a readily accessible bidentate S,O-ligand. The methodology shows high activity with a wide range of arenes, including bulky and, electron-rich and -poor arenes. The applicability of this catalyst is demonstrated in the late-stage functionalization
Pd-Catalyzed Olefination of Perfluoroarenes with Allyl Esters
作者:Zejiang Li、Yuexia Zhang、Zhong-Quan Liu
DOI:10.1021/ol202859b
日期:2012.1.6
An efficient Pd(II)-catalyzed direct olefination of perfluoroarenes with allyl esters is demonstrated. Under the typical conditions, the coupling reaction of fluorinated-arenes with allylic esters proceeded via a beta-H elimination rather than a beta-OAc elimination to give the corresponding gamma-substituted allylic esters.