Synthesis of Meta-substituted aniline derivatives by nucleophilic substitution
作者:Andrew J Belfield、George R Brown、Alan J Foubister、Paul D Ratcliffe
DOI:10.1016/s0040-4020(99)00818-2
日期:1999.11
Substitution by amines of fluorobenzenes containing a meta-substituted electron withdrawing group (EWG), in DMSO at 100 °C over 60 h gave meta-substituted anilinederivatives in isolated yields of up to 98%. The scope of the reaction is explored in terms of reaction conditions and substrates. It is postulated that facile meta-substitutions are facilitated through field stabilisation of the intermediate