An Efficient Synthesis of 5-Arylidene Barbiuric and Thiobarbituric Acids Catalyzed by Mg(NTf2)2 in Water
5-Arylidene barbituric and thiobarbituric acids have been synthesized by Knoevenagel condensation of various aromatic aldehydes with barbituric or thiobarbituric acids in the presence of 1 mol% Mg(NTf2)2 in water in high to excellent yields within short times.
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Z. H. Yang "An Efficient Synthesis of 5-Arylidene Barbiuric and Thiobarbituric Acids Catalyzed by Mg(NTf2)2 in Water", Advanced Materials Research, Vols. 295-297, pp. 1384-1388, 2011