Copper-catalyzed arylation of polycyclic aromatic hydrocarbons by the PO group
作者:Yuan Niu、Zhichao Qi、Qinxin Lou、Pengbo Bai、Shangdong Yang
DOI:10.1039/d0cc06639g
日期:——
The first example of a directed and regioselective arylation of polycyclic aromatic hydrocarbons (PAHs) by using a PO directing group is reported herein. The protocol uses a cheap copper catalyst, and results in a breakthrough meta-selective C–H functionalization of arylphosphine oxide compounds. Substrates with potential fluorescence properties, for example, pyrene and fluoranthene, were successfully
Unprecedented 1,3-migration of the aryl ligand in metallacyclic aryl α-naphthyl Pt(iv) difluorides to produce β-arylnaphthyl Pt(ii) complexes
作者:Ina S. Dubinsky-Davidchik、Israel Goldberg、Arkadi Vigalok、Andrei N. Vedernikov
DOI:10.1039/c3cc41079j
日期:——
Electrophilic fluorination of aryl α-naphthyl Pt(II) complexes leads to an unprecedented 1,3-migration of the aryl ligand to the β-position of the naphthyl group. The reaction proceeds via the initial oxidative addition of two fluoro ligands to the Pt center followed by C(sp2)âC(sp2) coupling and aryl migration.