Results 71 to 80 of about 7,788 (207)

Synthesis and Properties of Substituted 1-(2-Benzothiazolyl)-2-pyridones

, 1995
The studied 1-(2-benzothiazolyl)-2-pyridones Va-Vf were prepared from N-(2-benzothiazolyl)cyanoacetamide (II) which on reaction with 4-substituted benzaldehydes afforded 3-aryl-N-(2-benzothiazolyl)-2-cyano-2-propenamides IVa-IVg.
Dušan Ilavský, Jarmila Štetinová, Ján Leško, Lubomír Zalibera, Alexander Bartovič, Rudolf Kada   +5 more
core   +1 more source

Unlocking Stereodefined Olefins by Z‐Selective Transition Metals‐catalyzed C−H Activations

ChemCatChem, Volume 18, Issue 15, 14 August 2026.
The synthesis of Z‐olefins is an important challenge in synthetic organic chemistry. Within this review, we report a comprehensive overview of transition metals‐catalyzed Z‐selective C–H activations of (hetero)arenes for the synthesis of stereodefined olefins.
Francesco Capranica, Silvia Cattani, Gianpiero Cera   +2 more
wiley   +1 more source

One-pot Synthesis of 6-Aza-chromone Derivatives Through Cascade Carbonylation-Sonogashira-Cyclization

Scientific Reports, 2017
We developed an efficient synthesis of aza-chromones from 3-iodo-4-(1H)-pyridones and terminal acetylenes via a cascade carbonylation-Sonogashira-cyclization reaction.
Gang Cheng, Yingbei Qi, Xiaoqian Zhou, Rong Sheng, Yong-Zhou Hu, Youhong Hu   +5 more
doaj   +1 more source

Reactions of 1,2,4‐Oxadiazole[4,5‐a]piridinium Salts with Alcohols: the Synthesis of Alkoxybutadienyl 1,2,4‐Oxadiazoles

ChemistryOpen, 2020
1,2,4‐Oxadiazole[4,5‐a]piridinium salts add alcohols and alkoxides to undergo electrocyclic ring opening affording alkoxybutadienyl 1,2,4‐oxadiazole derivatives.
Dr. Mattia Moiola, Dr. Marco Leusciatti, Prof. Dr. Paolo Quadrelli   +2 more
doaj   +1 more source

Design, Synthesis and Antifibrotic Activities of Carbohydrate- Modified 1-(Substituted aryl)-5-trifluoromethyl-2(1H) Pyridones

Molecules, 2012
Pirfenidone, a pyridone compound, is an effective and novel antifibrotic agent. In this article, we describe the design, synthesis and activity evaluation of novel antifibrotic agents, 1-(substituted aryl)-5-trifluoromethyl-2(1H) pyridones modified with ...
Lijian Tao, Zhongjun Li, Renna Luo, Gaoyun Hu, Qi Hou, Zhiqi Lao, Lingling Xuan, Jinye Bai, Xiangbao Meng, Qinghua Lou   +9 more
doaj   +1 more source

Synthesis, characterization, and antimicrobial evaluation of novel 5-benzoyl-N-substituted amino- and 5-benzoyl-N-sulfonylamino-4-alkylsulfanyl-2-pyridones

Drug Design, Development and Therapy, 2017
Galal Elgemeie,1 Farag Altalbawy,2,3 Mohammed Alfaidi,3 Rania Azab,2,4 Atef Hassan5 1Department of Chemistry, Faculty of Science, Helwan University, Helwan, 2National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt ...
Elgemeie G, Altalbawy F, Alfaidi M, Azab R, Hassan A   +4 more
doaj  

Kristallstruktur eines 2-Dimethylamino-3,3-dimethyl-4(3H)-pyridons

CHIMIA, 1982
3-Dimethylamino-2,2-dimethyl-2H-azirine (1) reacts with alkyl phenyl substituted cyclopropenones 2 in benzene at 130 °C to give a mixture of the two isomeric 4(3H)-pyridones 3 and 4, resulting from a nucleophilic attack at C(2) and C(1) of the ...
Jost H. Bieri, Roland Prewo, Heinz Heimgartner   +2 more
doaj   +1 more source

3-Cyano-4,6-dimethyl-2-pyridone (Guareschi pyridone)

Acta Crystallographica Section E Structure Reports Online, 2004
In the crystal structure of the title compound, C8H8N2O, the mol­ecules form centrosymmetric dimers via N—H⋯O hydrogen bonds.
Victor B. Rybakov, Alexander A. Bush, Eugene V. Babaev, Leonid A. Aslanov   +3 more
openaire   +1 more source

Regioselective Halogenations and Subsequent Suzuki-Miyaura Coupling onto Bicyclic 2-Pyridones

, 2010
A selective synthesis of 6-bromo-8-iodo dihydro thiazolo ring-fused 2-pyridones is described. These halogenated 2-pyridones are selectively arylated by sequential Suzuki-Miyaura couplings.
Bengtsson, Christoffer,, Almqvist, Fredrik,   +1 more
core   +1 more source

Regioselective Halogenations and Subsequent Suzuki−Miyaura Coupling onto Bicyclic 2-Pyridones

, 2016
A selective synthesis of 6-bromo-8-iodo dihydro thiazolo ring-fused 2-pyridones is described. These halogenated 2-pyridones are selectively arylated by sequential Suzuki−Miyaura couplings.
Fredrik Almqvist (698391), Christoffer Bengtsson (1281825)   +1 more
core   +1 more source