Split cross-coupling via Rh-catalysed activation of unstrained aryl–aryl bonds
作者:Congjun Yu、Zining Zhang、Guangbin Dong
DOI:10.1038/s41929-024-01120-9
日期:——
aryl–aryl bonds has been a fundamental challenge in organic synthesis due to the inertness of these bonds. Here we report a split cross-coupling strategy that allows twofold arylation with diverse aryl iodidesthrough cleaving unstrained aryl–aryl bonds of common 2,2′-biphenols. The reaction is catalysed by a rhodium complex and promoted by a removable phosphinite directing group and an organic reductant
Catalytic Intermolecular Ortho-Arylation of Phenols
作者:Robin B. Bedford、Michael E. Limmert
DOI:10.1021/jo030157k
日期:2003.10.1
catalysts such as [RhCl(PPh3)3] or [[RhCl(COD)]2] with PiPr2(OAr) or P(NMe2)3 co-catalysts allows the ortho-selective intermolecular arylation of phenols. The reaction proceeds via orthometalation of P-OAr groups and then transesterification liberates the product phenol. When 2-substituted phenols are used as substrates, [RhCl(PPh3)3]/iPr2(OAr) mixtures are typically the catalysts of choice, whereas for substrates