Upson, American Chemical Journal, 1904, vol. 32, p. 15
作者:Upson
DOI:——
日期:——
Metal nitrate promoted highly regiospecific <i>ortho</i>–nitration of phenols: Application to the synthesis of nitroxynil
作者:Zafar Iqbal、Asha Joshi、Saroj Ranjan De
DOI:10.1080/00397911.2023.2184270
日期:2023.4.18
Abstract Highly regiospecific ortho–nitration of electronically diverse phenols is accomplished using Fe(NO3)3.9H2O for electron–rich and Cu(NO3)2.6H2O for electron–deficient phenols as the cheap nitrating agents. The reaction is carried out in CH3CN at 90 °C under mild and neutral conditions where structurally diverse phenols afford exclusively ortho–nitration products in moderate to good yields with
摘要 使用 Fe(NO 3 ) 3 .9H 2 O 富电子酚和 Cu(NO 3 ) 2 .6H 2 O 缺电子酚作为廉价的硝化剂,实现电子多样性酚类的高度区域特异性邻位硝化。该反应在 CH 3 CN 中于 90 °C 在温和和中性的条件下进行,其中结构多样的酚类以中等到良好的收率专门提供邻硝化产物,并且具有出色的官能团耐受性。通过实现生物活性化合物硝苯腈,建立了该策略的合成应用。