Nickel-Catalyzed Intramolecular Desulfitative C—N Coupling: A Synthesis of Aromatic Amines
作者:Jiangjun Liu、Xiuwen Jia、Xuemeng Chen、Haotian Sun、Yue Li、Søren Kramer、Zhong Lian
DOI:10.1021/acs.joc.0c00009
日期:2020.4.17
intramolecular C—N coupling reaction via SO2 extrusion is presented. The use of a catalytic amount of BPh3 allows the transformation to take place under much milder conditions (60 °C) than previously reported C—N coupling reactions by CO or CO2 extrusion (160–180 °C). In addition, this method displays good functional group tolerance and versatility, as it can be applied to the synthesis of dialkyl aryl
提出了通过SO 2挤出的镍催化的分子内CN偶联反应。与以前报道的通过CO或CO 2挤出进行的CN偶联反应(160-180°C)相比,使用催化量的BPh 3可使转化在较温和的条件下(60 °C)进行。另外,该方法显示出良好的官能团耐受性和多功能性,因为它可用于合成二烷基芳基胺,烷基二芳基胺和三芳基胺。通过三个高产量的克级反应证明了脱硫CN偶联的稳健性。