A novel route to 2,4-dianilino-substituted pyrimidines
摘要:
A method is described to couple sterically-hindered electron-poor anilines to the 4-position of the pyrimidine core using a pyrimidine-2,4-bis(trifluoromethanesulfonate). (C) 2009 Elsevier Ltd. All rights reserved.
An optimized procedure is given for the synthesis of novel 3-(arylamino)-1,2,4-triazin-5-one building blocks from commercially available material. By employing these building blocks, a practical protocol is described for the functionalization of the 5-position of the triazine core with anilines orphenols.