A terphenyl phosphine as a highly efficient ligand for palladium-catalysed amination of aryl halides with 1° anilines
作者:Fabin Zhou、Lixue Zhang、Ji-cheng Shi
DOI:10.1016/j.jcat.2021.08.017
日期:2021.10
A terphenyl phosphine ligand (2,6-bis(2,4,6-triisopropylphenyl)phenyl-dicyclohexylphosphine, TXPhos) and its supported palladium complex [(TXPhos)(allyl)PdCl] have been developed and the catalyst system is highly efficient in amination of aryl halides with 1° anilines, especially effective for densely functionalized substrates including both partners possessing ortho-ester, acetyl, nitrile and nitro
已开发出三联苯膦配体(2,6-双(2,4,6-三异丙基苯基)苯基-二环己基膦,TXPhos)及其负载的钯配合物[(TXPhos)(allyl)PdCl],该催化剂体系在芳基卤化物与 1° 苯胺的胺化,对密集官能化的底物特别有效,包括具有原酸酯、乙酰基、腈和硝基的两个伙伴。使用TXPhos负载的催化剂体系,前所未有地实现了许多合作伙伴的组合,基础范围甚至扩展到了KOAc,这甚至是2-硝基氯苯胺化的最佳选择。