GO–Cu<sub>7</sub>S<sub>4</sub> catalyzed <i>ortho</i>-aminomethylation of phenol derivatives with <i>N</i>,<i>N</i>-dimethylbenzylamines: site-selective oxidative CDC
作者:Sonu Gupta、Nisha Chandna、Pooja Dubey、Ajai K. Singh、Nidhi Jain
DOI:10.1039/c8cc03396j
日期:——
supported on grapheneoxide (GO) have been synthesized for the first time from Cu2S, and used as highly efficient heterogeneous catalysts for oxidative ortho-selective C–H aminomethylation of phenols with N,N-dimethylbenzylamines. The NPs (30–80 nm) have been characterized by HRTEM, SEM-EDX, PXRD, FTIR, Raman, ICP-AES and XPS analyses. The NP catalyzed sp2–sp3 crossdehydrogenativecoupling (CDC) features
Ruthenium-Catalyzed Aminomethylation and Methylation of Phenol Derivatives Utilizing Methanol as the C<sub>1</sub>Source
作者:Seoksun Kim、Soon Hyeok Hong
DOI:10.1002/adsc.201601117
日期:2017.3.6
involving ortho‐aminomethylation of phenol was developed via ruthenium‐catalyzed dehydrogenation of methanol, an environmentally benign C1 building block, without the use of reactive reagents. The reaction was successfully applied to a range of substrates. When naphthol was employed instead of phenol, only methylation was observed. On the basis of various mechanistic studies, we propose that formamide barely