A Facile and Clean Synthesis of Pyrimidine Derivatives via Three-component Reaction in Aqueous Media
作者:Daqing Shi、Jinwen Shi、Shaofeng Rong
DOI:10.1002/cjoc.201090148
日期:——
A series of 5‐benzylidenepyrimidine‐2,4,6(1H,3H,5H)‐trione and 5,5′‐(arylmethylene) bis[6‐aminopyrimidine‐ 2,4(1H,3H)‐dione] derivatives were synthesized via the three‐component reactions of aromatic aldehyde, 6‐aminopyrimidine‐2,4‐dione and Medrum's acid in aqueous media in the presence of triethylbenzylammonium chloride. The structures of the products were affected by substituents of aromatic aldehydes
Reaction of 6-aminouracils with aldehydes in water as both solvent and reactant under FeCl<sub>3</sub>·6H<sub>2</sub>O catalysis: towards 5-alkyl/arylidenebarbituric acids
5-Alkyl/arylidenebarbituric acids were efficiently synthesized through an FeCl3·6H2O catalyzed domino reaction of 6-aminouracils, water and aldehydes with water serving a dual role as both solvent and reactant, under benign conditions.