An efficient synthesis of 2-amino-4-aryl-3,5-dicarbonitrile-6-ethoxypyridine derivatives by the solvent taking part in the reaction
作者:Suhui Wang、Sheng Xia、Shimin Tao、Yunyun Zha、Youjian Feng、Liangce Rong
DOI:10.1007/s11164-012-0829-x
日期:2013.9
An efficient and facile synthesis of 2-amino-4-aryl-3,5-dicarbonitrile-6-ethoxypyridine via reaction of aromatic aldehydes, malononitrile, and ethanol in the presence of NaOH has been developed, without using the classic reagents amines and 1,3-dicarbonyl compounds. It is interesting that weak nucleophilic reagent ethanol could take part in the reaction without using strong base catalyst sodium ethylate. Compared with existing methods, the reported process has the advantages of excellent yields, easily obtainable raw materials, and mild reaction conditions.
Substituted 2-oxy-3,5-dicyano-4-aryl-6-aminopyridines and use thereof
申请人:Rosentreter Ulrich
公开号:US20050261502A1
公开(公告)日:2005-11-24
The use of compounds of formula (I) as medicaments, novel compounds of formula (I) and a method for production thereof are disclosed. Compounds of formula (I) are effective as adenosine receptor ligands.