Reduction by dissolving metals. Part XVI. Reactions of some aromatic amines with metal–ammonia solutions
作者:A. J. Birch、E. G. Hutchinson、G. Subba Rao
DOI:10.1039/j39710000637
日期:——
The reduction in liquid ammonia, preferably by lithium and t-pentyl alcohol, of some NN-dimethylanilines and some N-arylmorpholines has been examined. The products normally isolated are conjugated cyclohexadienamines, except in the case of ortho-substituted amines, from which stable unconjugated cyclohexadienamines can be obtained. In some other cases, with sufficient care, unconjugated dienamines
一些在液氨还原,优选通过锂和叔戊醇,NN -dimethylanilines和一些Ñ -arylmorpholines已审查。通常分离的产物是共轭环己二胺,但在邻位取代胺的情况下,可以从中获得稳定的未共轭环己二胺。在其他一些情况下,如果经过足够的小心,可以分离出未结合的二烯胺,但是它们会在高于约200℃的温度下进行热共轭。30°。吗啉衍生物比NN-二甲基氨基衍生物更易于处理且更稳定。共轭和非共轭二烯胺具有特征的uv,ir和nmr光谱。