作者:T. Sheradsky、G. Salemnick、Z. Nir
DOI:10.1016/s0040-4020(01)93831-1
日期:1972.1
The reaction of halonitrobenzenes with t-butyl N-hydroxycarbamate (2), gave t-butyl N(nitroaryloxy)carbamates (3), which yielded on acidolysis with trifluoroacetic acid, O-(nitroaryl)hydroxylamines (4). Compounds 4 were utilized for the amination of anionic nitrogens and of carbanions. Attempts to apply the method to the synthesis of hydroxylamines substituted on the oxygen by heterocyclic rings (pyridine
卤代硝基苯与N-羟基氨基甲酸叔丁酯(2)反应,得到N(硝基芳氧基)氨基甲酸叔丁酯(3),其在三氟乙酸酸解下产生O-(硝基芳基)羟基胺(4)。化合物4被用于阴离子氮和碳负离子的胺化。尝试将该方法用于合成被杂环(吡啶,嘧啶,吡嗪,三嗪,嘌呤和苯并噻唑)取代在氧上的羟胺仅产生相应的羟基化合物。然而,N,O-二吡啶基羟胺衍生物(22b)的形成表明O(5-硝基-2-吡啶基)羟胺(17)作为高反应性中间体存在。