Solvent-Free Synthesis of 2-(Phenylamino)-4-(trifluoromethyl)-1,6-dihydropyrimidine Derivatives Catalyzed by Sulfamic Acid
作者:Shide Shen、Weihua Yang、Chenxia Yu、Tuanjie Li、Changsheng Yao
DOI:10.1002/jhet.912
日期:2012.9
A series of 2‐(phenylamino)‐4‐(trifluoromethyl)‐1,6‐dihydropyrimidine derivatives were synthesized efficienly via the reaction of aryl aldehyde, ethyl 4,4,4‐trifluoro‐3‐oxobutanoate and 1‐phenylguanidine carbonate catalyzed by sulfamic acid under solvent‐free conditions. This protocol has the advantages of mild condition, high yields and environmentally benign procedure.