- 1-Methylimidazolium hydrogen sulfate/chlorotrimethylsilane: An effective catalytic system for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and hydroquinazoline-2,5-diones
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Bronsted acidic ionic liquid, 1-methylimidazolium hydrogen sulfate, in the presence of catalytic amount of chlorotrimethylsilane has been used as an efficient and reusable catalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones and hydroquin
- Kefayati, Hassan,Asghari, Fatereh,Khanjanian, Raheleh
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- A New Biginelli Reaction Procedure Using Potassium Hydrogen Sulfate as the Promoter for an Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-one
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Simple and improved conditions have been found to carry out the Biginelli reaction for the synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives. This synthesis was performed using potassium hydrogen sulfate as the promoter in glycol solution. Compared
- Tu, Shujiang,Fang, Fang,Zhu, Songlei,Li, Tuanjie,Zhang, Xiaojing,Zhuang, Qiya
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p. 537 - 539
(2007/10/03)
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- Synthesis, chemical and pharmacological properties of some 4-aryl-1,2,3,4,5,6,7,8-octahydroquinazoline-2,5-diones
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A series of 4-aryl-1,2,3,4,5,6,7,8-actahydroquinazoline-2,5-diones were synthesized by condensing urea with 1,3-cyclohexanedione and appropriate aromatic aldehydes according to the Biginelli reaction. The structures of the compounds were confirmed by elem
- Sarac,Yarim,Ertan, Mevluet,Boydag,Erol
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