Results 111 to 120 of about 7,227 (222)

A NOVEL RING TRANSFORMATION OF NITROPYRIMIDINONE LEADING TO POLYFUNCTIONALIZED PYRIDONES

, 2007
Polyfunctionalized 2-pyridones are readily prepared by the ring transformation using 3-methyl-5-nitropyrimidin-4(3H)-one with active methylene compounds in the presence of ...
NISHIWAKI, Nagatoshi, MATSUSHIMA, Kazuo, MORIMURA, Hiromi, TAMURA, Mina, ARIGA, Masahiro   +4 more
core   +1 more source

Microwave-assisted synthesis of highly substituted aminomethylated 2-pyridones

, 2004
By employing microwave-assisted organic synthesis (MAOS) efficient conditions to introduce aminomethylene substituents in highly substituted bicyclic 2-pyridones have been established.
Pemberton, Nils,, Åberg, Veronica,, Almstedt, Hanna,, Almqvist, Fredrik,, Westermark, Andreas,   +4 more
core   +1 more source

Microwave-Assisted Synthesis of Highly Substituted Aminomethylated 2-Pyridones

, 2016
By employing microwave-assisted organic synthesis (MAOS) efficient conditions to introduce aminomethylene substituents in highly substituted bicyclic 2-pyridones have been established.
Andreas Westermark (2702545), Veronica Åberg (2702551), Fredrik Almqvist (698391), Hanna Almstedt (2702548), Nils Pemberton (2065462)   +4 more
core   +1 more source

O- and N-Difluoromethylation of 2-Pyridones with Chlorodifluoromethane

Журнал органічної та фармацевтичної хімії
Difluoromethylation of various 2-pyridones with the available industrial reagent chlorodifluoromethane (Freon-22) has been studied. Some relationships between the ratio of difluoromethylation products and the reaction conditions, as well as the presence ...
Kirill I. Petko, Andrey A. Filatov
doaj   +1 more source

DIELS-ALDER ADDITION OF BENZYNE TO N-SUBSTITUTED 2-PYRIDONES.

, 1971
DIELS-ALDER ADDITION OF BENZYNE TO N-SUBSTITUTED 2 ...
ERIC BENJAMIN. SHEININ (7996424)
core  

Synthesis of 6-hydroxy-3,4,5,6-tetrahydro-2-pyridones and 3,4-dihydro-2-pyridones by H2O2/DMSO hydration of delta-ketonitriles.

, 1997
The title pyridones, e.g., I, were prepd. from RCOCR1R2CH2CN [RR1 = (CH2)4, R2 = H, Me; RR1 = (CH2)3, (CH2)5, R2 = H; R = Ph, R1 = R2 = H] via ketoamides or ...
L. Cotarca, MEILLE, STEFANO VALDO, S. Alini, E. Carnevali, FARINA, ALESSANDRA, CITTERIO, ATTILIO   +5 more
core   +1 more source

Manganese-Mediated C3-Selective Direct Alkylation and Arylation of 2‑Pyridones with Diethyl Malonates and Arylboronic Acids

, 2016
A manganese-mediated dehydrogenative direct alkylation of 2-pyridones with diethyl malonates has been developed. A similar reaction system is applicable to the direct arylation with arylboronic acids.
Akihiro Nakatani (1848937), Koji Hirano (1452925), Tetsuya Satoh (1489648), Masahiro Miura (308443)   +3 more
core   +1 more source

Pyridine-directed Rh-catalyzed C6-selective C–H acetoxylation of 2-pyridones [PDF]

Hazra S., Hirano K., Miura M.. Pyridine-directed Rh-catalyzed C6-selective C–H acetoxylation of 2-pyridones. Heterocycles 101, 223 (2020); https://doi.org/10.3987/com-19-s(f)16.A Rh(III)-catalyzed C-H acetoxylation of 2-pyridones with phenyliodine(III ...
Miura, Masahiro, Hazra, Sunit, Hirano, Koji   +2 more
core   +1 more source

Ketenes in Soluble Polymer Bound Synthesis:  Preparation of Succinamides and 4-Pyridones

, 2016
Ketenes in Soluble Polymer Bound Synthesis:  Preparation of Succinamides and 4 ...
Adel Rafai Far (1956772), Thomas T. Tidwell (1856539)   +1 more
core   +1 more source

Substituent-Dictated Concise Synthesis of 4,6-DisubstitutedN-Alkyl-2-­pyridones and 2-Aminopyridines

, 2005
Functionalized N-alkyl-2-pyridones and 2-aminopyridines are useful precursors for the synthesis of various heterocyclic compounds of therapeutic importance. In this paper we have delineated and illustrated a direct methodology for the synthesis of 6-aryl-
Goel, Atul, Verma, Deepti, Singh, Fateh V.   +2 more
core   +1 more source