作者:Brian D. Kesling、Bj�rn C. S�derberg、Terry Gullion
DOI:10.1002/1099-1344(200009)43:10<1059::aid-jlcr392>3.0.co;2-d
日期:2000.9
Three isotopically labeled tri-p-tolylamines, 15N, 15N2D27, and mono-13CH3 have been prepared using zeolite mediated bromination or nitration of toluenes as one of the key steps. The obtained-4-nitrotoluenes were reduced to 4-aminotoluenes, and coupled, via a palladium catalyzed amination reaction, with 4-bromotoluenes to afford di- and tri-p-tolylamines. The di-p-tolylamines were readily transformed
已经使用沸石介导的甲苯溴化或硝化作为关键步骤之一制备了三种同位素标记的三对甲苯胺、15N、15N2D27 和单 13CH3。将所得-4-硝基甲苯还原为4-氨基甲苯,并通过钯催化的胺化反应与4-溴甲苯偶联,得到二-和三-对甲苯胺。使用相同的钯催化方法,二对甲苯胺很容易转化为三对甲苯胺。版权所有 © 2000 John Wiley & Sons, Ltd.