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1. Cyclic ketones and substituted α-keto acids as alternative substrates for novel Biginelli-like scaffold syntheses
Matthew M Abelman, Stephen C Smith, Donald R James
Tetrahedron Letters, Vol. 44, Issue 24, P. 4559-4562

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http://dx.doi.org/10.1016/S0040-4039(03)00985-7

2. New three-component cyclocondensation reaction: microwave-assisted one-pot synthesis of 5-unsubstituted-3,4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
Bing Lianga,Xitian Wanga,Jin-Xian Wanga, Zhengyin Dua
Tetrahedron Volume 63, P. 1981–1986

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http://dx.doi.org/10.1016/j.tet.2006.12.062

3. Efficient synthesis of pyrimidinone derivatives by ytterbium chloride catalyzed Biginelli-type reaction under solvent-free conditions
Huihui Zhang, Zhuqing Zhou,Zhigang Yao,Fan Xu Qi Shen

Tetrahedron Letters Volume 50, 2009, P 1622–1624.

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http://dx.doi.org/10.1016/j.tetlet.2009.01.103

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