SYNTHESIS OF 5-AMINO-1- ARYL-4-CYANOIMIDAZOLES FROMN-ARYL-N′-(1,2-DICYANOVINYL)- FORMAMIDINES
摘要:
The aryl-(Z)-N-[2-amino-1,2-dicyanovinyl]formandine cyclize in the presence of base to give a 1,5-diamino-4-cyanoimidazole or a 1,5-diamino-4-(cyanoformimidoyl)imidazole, depending on the reaction conditions and the nature of the base used to induced cyclization.
Synthesis of 9-Aryl-6-aminopurines from 5-Amino-1-aryl-1H-imidazole-4-carbonitriles
作者:A. Yahay-Zadeh
DOI:10.1023/b:rujo.0000013141.59809.a3
日期:2003.11
5-Amino-1-aryl-1H-imidazole-4-carbonitriles were converted into 9-aryl-6-aminopurines via imidates formation at treating with CH(OEt)(3) and Ac2O followed by reaction with ammonia.