Results 41 to 50 of about 5,835 (244)
A simple and efficient one-pot synthesis of novel benzimidazo[1,2-a]- chromeno[4,3-d] pyrimidinones catalyzed by [Et3NH][HSO4] [PDF]
, 2020 1418-1424A simple and efficient one-pot synthesis of novel polyheterocyclic benzimidazo[1,2-a]- chromeno[4,3-d]pyrimidinones 4 via a three-component condensation of 2-aminobenzimidazole 1, aromatic aldehydes 2 and 4-hydroxy coumarin 3 catalyzed by ...
Brahmeshwari, G, Prasoona, G, Kishore, B
core +4 more sources
A domino Microwave-assisted protocol for the Synthesis of 2,6 Disubstituted Pyrimidinones [PDF]
, 2011 A practical microwave-assisted protocol for the synthesis of 2,6-disubstituted pyrimidinones has been developed. This approach is based on a domino Michael addition-cyclocondensation reaction between substituted thioureas/guanidines and ...
RADI, Marco +6 more
core +1 more source
Molecules, 2021 In this article, we showed the synthesis of new polycyclic aromatic compounds, such as thienotriazolopyrimidinones, N-(thienotriazolopyrimidine) acetamide, 2-mercapto-thienotriazolo-pyrimidinones, 2-(((thieno-triazolopyrimidine) methyl) thio) thieno ...
Ameen Ali Abu-Hashem +2 more
doaj +1 more source
RECENT ADVANCES IN METAL-CATALYZED C-H FUNCTIONALIZATION OF PYRIMIDINONES, QUINAZOLINONES AND FUSED QUINAZOLINONES [PDF]
, 2018 International audienceThis review emphasises the recent developments in metal-catalyzed functionalization using direct C-H bond activation of pyrimidinones (uracils), quinazolinones and quinazolinone-based fused poly-N-heterocycles as well as metal ...
Fruit, Corinne, Besson, Thierry
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Molecules, 2012 A series of pyridines, pyrimidinones, oxazinones and their derivatives were synthesized as antimicrobial agents using citrazinic acid (2,6-dihydroxyisonicotinic acid) as a starting material.
Abd El-Galil E. Amr +3 more
doaj +1 more source
Synthesis of pyrazolopyrimidinones using a “one-pot” approach under microwave irradiation
Beilstein Journal of Organic Chemistry, 2018 A simple one-pot method for the microwave-assisted synthesis of substituted pyrazolo[1,5-a]pyrimidinones, a core scaffold in many bioactive and pharmaceutically relevant compounds, has been established.
Mark Kelada +4 more
doaj +1 more source
Molecules, 2011 all-endo-3-amino-5-hydroxybicyclo[2.2.2]octane-2-carboxylic acid (13) and all-endo-5-amino-6-(hydroxymethyl)bicyclo[2.2.2]octan-2-ol (10) were prepared via dihydro-1,3-oxazine or g-lactone intermediates by the stereoselective functionalization of an N ...
Márta Palkó +2 more
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CHIMIA, 2003 In this short review, new quinazolinones and thieno-pyrimidinones with outstanding powdery mildew activity are introduced. The most important inventions of two major players in this field, DuPont and Syngenta, are presented and interesting ...
Harald Walter, Ronald Zeun
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Synthesis and Studies of Alkynyl Pyrimidinones as Metaphase Inhibitors. [PDF]
Acta Chemica Scandinavica, 1991 Methods are described for the syntheses of chloromethyl propargyl ethers and propargyl halides substituted with a hydroxyalkyl group, and their use in alkylation reactions of 2-pyrimidinones. The N-alkynyl derivatives are reversible inhibitors of mitosis in the metaphase of the cell-cycle. The in vivo screening was on Chang liver cells.
Tore Benneche +5 more
openaire +2 more sources
Mechanistic Investigations into the photochemistry of 4-allyl-tetrazolones in solution: a new approach to the synthesis of 3,4-dihydro-pyrimidinones [PDF]
, 2014 Photolysis (ì ) 254 nm) of 4-allyl-tetrazolones 2a-c was carried out in methanol, 1-propanol, 1-hexanol, acetonitrile, and cyclohexane. The sole primary photochemical process identified was molecular nitrogen elimination, with formation of pyrimidinones ...
Khmelinskii, Igor +2 more
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