Synthesis of Aminonicotinonitriles and Diaminopyridines through Base-Catalyzed Ring Transformation of 2H-Pyran-2-ones
摘要:
An efficient and convenient synthesis of 2-amino-6-aryl-4-methylsulfanylnicotinonitriles (2), 2-amino-6-aryl-4-substituted-aminonicotinonitriles (4), and 2-amino-6-aryl-4-substituted-aminopyridines (6) has been delineated and illustrated through base-catalyzed ring transformation of 6-aryl-3-cyano-4-methylsulfanyl/substituted-amino-2H-pyran-2-ones (1, 3, and 5) with cyanamide and ammonium carbonate separately.
Synthesis of Aminonicotinonitriles and Diaminopyridines through Base-Catalyzed Ring Transformation of 2<i>H</i>-Pyran-2-ones
作者:Farhanullah、Nidhi Agarwal、Atul Goel、Vishnu Ji Ram
DOI:10.1021/jo0204496
日期:2003.4.1
An efficient and convenient synthesis of 2-amino-6-aryl-4-methylsulfanylnicotinonitriles (2), 2-amino-6-aryl-4-substituted-aminonicotinonitriles (4), and 2-amino-6-aryl-4-substituted-aminopyridines (6) has been delineated and illustrated through base-catalyzed ring transformation of 6-aryl-3-cyano-4-methylsulfanyl/substituted-amino-2H-pyran-2-ones (1, 3, and 5) with cyanamide and ammonium carbonate separately.