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
Preparative routes to t-amine-substituted nitroanilines
作者:D. P. Ainsworth、H. Suschitzky
DOI:10.1039/j39660000111
日期:——
Various preparativeroutes to the title compounds (I–IV; R1= tertiary amine) have been investigated, namely nitration in acetic anhydride or in sulphuric acid, and nucleophilic replacement of halogen in the nitro-amines (I and II; R1= Hal).
已经研究了多种制备标题化合物的方法(I–IV; R 1 =叔胺),即在乙酸酐或硫酸中硝化,以及亲核取代硝基胺中的卤素(I和II; R 1 =哈尔)。