Synthesis of tertiary arylamines: Lewis acid-catalyzed direct reductive N-alkylation of secondary amines with ketones through an alternative pathway
作者:Onkar S. Nayal、Maheshwar S. Thakur、Vinod Bhatt、Manoranjan Kumar、Neeraj Kumar、Bikram Singh、Upendra Sharma
DOI:10.1039/c6cc04381j
日期:——
We report herein a highly efficient, tin(II)/PMHS catalyzed reductive N-alkylation of arylamines with ketones affording tertiary arylamines. Very wide substrate scope was observed for current catalytic method as all six...
C-N cross-coupling reaction catalysed by efficient and reusable CuO/SiO<sub>2</sub>
nanoparticles under ligand-free conditions
作者:Abdol R. Hajipour、Fatemeh Dordahan、Fatemeh Rafiee、Mohammad Mahdavi
DOI:10.1002/aoc.3203
日期:2014.11
Nanometric copper oxide supported on silica has been found to be a highly efficient and reusable catalyst for the C–N cross‐coupling reaction of amines with aryl halides under ligand‐free conditions. Various arylamines with different substituted groups can be synthesized in moderate to good yields. The catalyst can be recycled at least five times without obvious loss in catalytic activity. Copyright
The introduction of amines onto aromatics without metal catalysts and chemical oxidants is synthetically challenging. Herein, we report the first example of an electrochemical cross-dehydrogenative aromatization (ECDA) reaction of saturated cyclohexanones and amines to construct anilines without additional metal catalysts and chemical oxidants. This reaction exhibits a broad scope of cyclohexanones