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A Clean Procedure for Synthesis of Pyrido[d]Pyrimidine Derivatives Under Solvent-Free Conditions Catalyzed by ZrO2 Nanoparticles

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A simple one-pot method for the preparation of 7-amino-2,4-dioxo-5-aryl-1,2,3,4-tetrahydropyrido[2,3- d]pyrimidine-6-carbonitriles 4 from aromatic aldehydes, malononitrile and 4(6)-aminouracil in the presence of ZrO2 nanoparticles (ZrO2 NPs) as an efficient heterogeneous catalyst is described. The procedure has the advantages of high yields (86-97%), short reaction time (2h) and an environmentally friendly specificity....

Keywords: Solvent-free; ZrO2 nanoparticles; aromatic ring; cataylsts; enzymes; heterogenous; high yields; short reaction time; tandem knoevenagel-michael addition; tetrahydropyrido[d]pyrimidine

Document Type: Research Article

Publication date: June 1, 2012

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  • Combinatorial Chemistry & High Throughput Screening publishes full length original research articles and reviews describing various topics in combinatorial chemistry (e.g. small molecules, peptide, nucleic acid or phage display libraries) and/or high throughput screening (e.g. developmental, practical or theoretical). Ancillary subjects of key importance, such as robotics and informatics, will also be covered by the journal. In these respective subject areas, Combinatorial Chemistry & High Throughput Screening is intended to function as the most comprehensive and up-to-date medium available. The journal should be of value to individuals engaged in the process of drug discoveryand development, in the settings of industry, academia or government.
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