Regioselective functionalisation of nitrobenzene and benzonitrile derivatives via nucleophilic aromatic substitution of hydrogen by phosphorus-stabilized carbanions
作者:Carmen M. Andújar Sánchez、Ma José Iglesias、Jesús García Lopez、Isidro J. Pérez Álvarez、Fernando López Ortiz
DOI:10.1016/j.tet.2006.01.088
日期:2006.4
oxide groups by displacement of hydrogen of a variety of electron-deficient benzene derivatives is described. Lithium phosphazenes were the most suitable nucleophiles for the substitution of hydrogen in nitrobenzene and some ortho-, meta-, and para- substitutednitrobenzenes. Lithiated phosphine borane complexes produced efficiently the substitution of the hydrogen at the para position of a cyano group