One-Pot Directing Group Formation/C−H Bond Functionalization<i>via</i>Copper(I) and Ruthenium(II) Catalysis
作者:Christian Bruneau、Rafael Gramage-Doria
DOI:10.1002/adsc.201600735
日期:2016.12.7
A copper(I)‐catalyzed oxidation leading to the formation of 2‐pyridyl ketone directing groups has been efficiently coupled with a ruthenium(II)‐catalyzed C(sp2)−H bond arylation transformation without performing any intermediate work‐up. This sustainable approach was further extended to sequential three‐step transition metal‐catalyzed transformations in which up to four new bonds (C–O, C–C, C–H and
Ruthenium(II)-catalysed Functionalisation of CH Bonds via a Six-membered Cyclometallate: Monoarylation of Aryl 2-pyridyl Ketones
作者:Bin Li、Christophe Darcel、Pierre H. Dixneuf
DOI:10.1002/cctc.201300752
日期:2014.1
Selective monoarylation of aryl 2‐pyridyl ketones with a variety of arylbromides via arene sp2 CH bond activation/functionalisation is achieved with a [RuCl2(p‐cymene)]2/ p‐CF3C6H4CO2H catalytic system. The reaction via a 6‐membered ruthenacycle is more difficult to perform than via a 5‐membered cyclometallate but the activation of only one ortho CH bond is unprecedentedly highly selective. A variety
芳基2-吡啶基酮的选择性单芳基化与多种芳基溴化物通过芳烃SP 2 ç H键活化/官能化与将[RuCl实现2(p -cymene)] 2 / p -CF 3 Ç 6 ħ 4 CO 2 ħ催化系统。通过六元钌循环进行反应比通过五元环金属盐进行反应更困难,但是只有一个邻位CH键的活化是前所未有的高度选择性。可以轻松获得各种功能性的2-吡啶衍生物。通过H / D交换表明,羧酸有利于可逆的CH键活化。