Cu(OTf)2: A Reusable Catalyst for High-Yield Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones.

Multicomponent Synthesis of 3,4-Dihydrop

Multicomponent Synthesis of 3,4-Dihydropyrimidin-2-(1H)-ones with a Cu/Silica Xerogel Composite Catalyst.

✍ Dennis Russowsky; Edilson V. Benvenutti; Gabriela S. Roxo; Fabio Grasel 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 25 KB

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Scandium(III) Triflate as an Efficient a

Scandium(III) Triflate as an Efficient and Reusable Catalyst for Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones.

✍ Surya K. De; Richard A. Gibbs 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 17 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Broensted Acidic Ionic Liquid: An Effici

Broensted Acidic Ionic Liquid: An Efficient and Reusable Catalyst for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones.

✍ Renwei Zheng; Xiaoxia Wang; Hui Xu; Jingxing Du 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 17 KB 👁 2 views

Dichloro dicyano quinone (DDQ) as coupli

Dichloro dicyano quinone (DDQ) as coupling reagent for high yield synthesis of 3,4-dihydropyrimidin-2(1H)-ones

✍ D. Shobha; M. Adharvana Chari; P. Sadanandam; K. Mukkanti 📂 Article 📅 2008 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 173 KB

## Abstract magnified image DDQ catalyzes efficiently the three‐component condensation reaction of aldehyde, β‐ketoester and urea in refluxing acetonitrile to afford the corresponding dihydropyrimidinones. Compared to the classical Biginelli reaction conditions, this new approach consistently has

Cu(OTf)2 Catalyzed High Yield Synthesis

Cu(OTf)2 Catalyzed High Yield Synthesis of Hantzsch 1,4-Dihydropyridines.

✍ Abhimanyu S. Paraskar; Arumugam Sudalai 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 22 KB

TiO2 as a Reusable Catalyst for the One-

TiO2 as a Reusable Catalyst for the One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones under Solvent-Free Conditions

✍ Mohammad Zaman Kassaee; Hassan Masrouri; Farnaz Movahedi; Reza Mohammadi 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 131 KB 👁 1 views

## Abstract An efficient solvent‐free method for the synthesis of various 3,4‐dihydropyrimidin‐2(1__H__)‐ones using TiO~2~ as a recyclable heterogeneous catalyst is described. Compared to known methods, satisfactory results are obtained with excellent yields, short reaction times, and simplicity in