New Approach to the Synthesis of<i>N</i><sup>7</sup>-Arylguanines and<i>N</i><sup>7</sup>-Aryladenines
作者:Roman Keder、Hana Dvořáková、Dalimil Dvořák
DOI:10.1002/ejoc.200801002
日期:2009.4
The copper-mediated arylation of 7-methylpyrimido[1,2-a]purin-10(3H)-one (1) in dichloromethane or of N2-(dimethylamino)methyleneguanine (2) in methanol in the presence of TMEDA as a base/ligand led to the preferential formation of 1-aryl-7-methylpyrimido[1,2-a]purin-10(3H)-ones (4) and 7-aryl-N2-(dimethylamino)methyleneguanines (7), respectively. These compounds can be easily hydrolysed to the corresponding