作者:Iluminada Gallardo、Gonzalo Guirado、Jordi Marquet
DOI:10.1002/1099-0690(20021)2002:2<261::aid-ejoc261>3.0.co;2-6
日期:2002.1
Nitroaromatic ketones are readily prepared by nucleophilic aromatic substitution of hydrogen in nitroarenes by electrochemical oxidation. Carbanions of various ketones were added to selected nitroarenes in DMF/ketone mixtures leading to formation of the sigma(H) complexes. The reaction was promoted using potassium tert-butoxide as a base. Useful yields were achieved (80-100%) in the C-arylation of ketones. In most cases, the process proceeded with high selectivity. This new method represents an environmentally favourable route for obtaining nitroaromatic ketones.