An Electron-Deficient Diene as Ligand for Palladium-Catalyzed Cross-Coupling Reactions: An Efficient Alkylation of Aryl Iodides by Primary and Secondary Alkylzinc Reagents
作者:Qiang Liu、Hui Duan、Xiancai Luo、Yang Tang、Gang Li、Rong Huang、Aiwen Lei
DOI:10.1002/adsc.200800118
日期:2008.6.9
An electron-deficientdiene, L1, was found to be an effective ligand in facilitating palladium-catalyzed Negishi couplings involving primary and secondaryalkylzincreagents. The reactions took place readily at 60 °C in THF with 5 mol% of a catalyst generated in situ from bis(acetonitrile)palladium dichloride [PdCl2(MeCN)2] and L1, and functional groups such as chloro, bromo, etc. attached to phenyl