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One-pot Condensation (one-pot + condensation)
Selected AbstractsAn Efficient Regiospecific Synthesis of Highly Functionalized Novel Dihydropyrimido[4,5-d]pyrimidine Derivatives by a Three-Component One-Pot Condensation under Solvent-Free Conditions.CHEMINFORM, Issue 28 2007Dipak Prajapati 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. [source] Synthesis of 14-aryl-14H -dibenzo[a,j]xanthenes catalyzed by acyclic acidic ionic liquidsJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 3 2010Dong Fang Some recyclable acyclic SO3H-functionalized ionic liquids have been used as novel catalysts for the synthesis of 14-aryl-14H -dibenzo[a,j]xanthenes via the one-pot condensation of ,-naphthol and aromatic aldehydes in aqueous medium. The condensation reaction was accomplished successfully with various aromatic aldehydes with good to excellent yields ranged from 86 to 96% within 5,30 min. After the reaction, the products could simply be separated from the catalysts by filtration. When separated from the reaction mixture, the catalysts could be recycled and reused for several times without noticeably reducing catalytic activity. The methodology gives the advantages of high yields, short reaction time, and easy work-up procedure. J. Heterocyclic Chem., (2010). [source] A novel three-component one-pot reaction involving ,-naphthol, aldehydes, and urea promoted by TMSCl/NaIJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 2 2010Gowravaram Sabitha Amidoalkyl naphthol derivatives have been synthesized in good yields in a one-pot condensation of ,-naphthol, aromatic aldehydes and urea in presence of TMSCl/NaI at room temperature. Ring closure of amidoalkyl naphthol derivatives occurred at 140°C to afford 1,2-dihydro-1-arylnaphtho[1,2-e] [1,3]oxazin-3-one derivatives. J. Heterocyclic Chem., (2010). [source] DBU-catalyzed three-component one-pot synthesis of highly functionalized pyridines in aqueous ethanolJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 1 2009Ritu Mamgain 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) efficiently catalyzes three-component one-pot condensations of aldehyde, malononitrile, and thiophenol to produce highly functionalized pyridines in excellent yield in aqueous ethanol. J. Heterocyclic Chem., 46, 69 (2009). [source] | ||||||||||