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1. Chemistry of Heterocyclic Compounds Volume 34, Number 7 / Июль 1998 г. pages 848-851
Synthesis of 4-alkyl-substituted 1,2,3,4-tetrahydropyrimidin-2-ones by the Biginelli reaction
Shutalev, A. D., Sivova, N. V

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dx.doi.org/10.1007/BF02251695

2. Synthesis; 4; 2002; pages 466 - 470;
Catalysis of the Biginelli Reaction by Ferric and Nickel Chloride Hexahydrates. One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones
Lu Jun; Bai Yinjuan;

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dx.doi.org/10.1055/s-2002-20956

3. Synthesis; 15; 2003; pages 2358 - 2362;
Expedient Synthesis of Biginelli-Type Dihydropyrimidinones Using α-(Benzotriazolyl)alkyl Urea Derivatives
Ashraf A. A. Abdel-Fattah

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dx.doi.org/10.1055/s-2003-42398

4. Synlett; English; 3; 2004; 537 - 539
A New Biginelli Reaction Procedure Using Potassium Hydrogen Sulfate as the Promoter for an Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-one
Shujiang Tu, Fang Fang, Songlei Zhu, Tuanjie Li, Xiaojing Zhang, Qiya Zhuang

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dx.doi.org/10.1055/s-2004-815419

5. Synthetic Communications, Volume 35, Issue 20 October 2005 , pages 2645 - 2651
Scandium(III) Triflate as an Efficient and Reusable Catalyst for Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones
Surya K. De ; Richard A. Gibbs

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dx.doi.org/10.1080/00397910500213781

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