Results 201 to 210 of about 29,559 (250)

Synthesis of fused quinoxalines

Mendeleev Communications, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Michail G. Ponizovsky, Artem M. Boguslavsky, Mikhail I. Kodess, Valery N. Charushin, Oleg N. Chupakhin   +4 more
openaire   +1 more source

Pyrrolo[1,2-a]quinoxalines based on quinoxalines (Review)

Chemistry of Heterocyclic Compounds, 2010
Published data on methods for the synthesis of pyrrolo[1,2-a]quinoxalines, based on derivatives of quinoxalines and also on compounds that are not initially derivatives of quinoxalines or pyrroles are summarized and classified.
V. A. Mamedov, A. A. Kalinin
openaire   +1 more source

Alkynyl- and dialkynyl-quinoxalines. Synthesis of condensed quinoxalines

Journal of the Chemical Society, Perkin Transactions 1, 1980
Condensation of 2-chloro- and 2,3-dichloro-quinoxalines with alk-1-ynes in the presence of bis(triphenylphosphine)palladium(II) dichloride and copper(I) iodide gives mono- and di-alkynylquinoxalines. Addition of amines to these products gives stable enamines; hydration gives 2′-oxoalkyl compounds which exist predominantly in the intramolecularly ...
Donald E. Ames, M. Ismail Brohi
openaire   +1 more source

A newly synthesized nitrogen‐rich derivative of bicyclic quinoxaline—Structural and conceptual DFT reactivity study

, 2020
The structural flexibility of quinoxaline coremakes it extremely promising source for the synthesis of various pharmacologically and biologically active agents.
N. Abad, M. Hajji, Y. Ramli, M. Belkhiria, Salima Moftah H. Elmgirhi, M. Habib, T. Guerfel, J. Mague, E. Essassi   +8 more
semanticscholar   +1 more source

Facile synthesis and anti-proliferative activity evaluation of quinoxaline derivatives

, 2020
A series of “drug-like” compounds based on quinoxaline scaffold with arylsulfonyl hydrazinyl, arylformyl hydrazinyl or arylsulfonyl groups at C-2 and aryloxy groups at C-3, were synthesized in 4 or 5 steps involving cyclization, chlorination and coupling
Jin Lin, Panpan Wang, Zemin Zhang, Guozhen Xue, Daijun Zha, Jian Wang, Xiu-zhi Xu, Zhulai Li   +7 more
semanticscholar   +1 more source

Quinoxaline-Based Cyclo(oligophenylenes)

The Journal of Organic Chemistry, 2015
A series of fully conjugated quinoxaline-based oligophenylene macrocycles is synthesized by Ni(0)-mediated Yamamoto-type diaryl homocoupling of (fluorinated) 2,3-bis(4'-bromophenyl)quinoxaline precursors. Cyclotrimers and cyclotetramers are obtained as the dominant reaction products.
Lidia, Marin, Julija, Kudrjasova, Pieter, Verstappen, Huguette, Penxten, Koen, Robeyns, Laurence, Lutsen, Dirk J M, Vanderzande, Wouter, Maes   +7 more
openaire   +2 more sources

ChemInform Abstract: Pyrrolo[1,2‐a]quinoxalines Based on Quinoxalines

ChemInform, 2011
AbstractReview: 65 refs.
V. A. Mamedov, A. A. Kalinin
openaire   +1 more source

Design, synthesis, in silico docking studies and biological evaluation of novel quinoxaline-hydrazide hydrazone-1,2,3-triazole hybrids as α-glucosidase inhibitors and antioxidants

New Journal of Chemistry, 2019
Novel quinoxaline-hydrazidehydrazone-1,2,3-triazole hybrids were synthesized, characterized and screened for α-glucosidase inhibitory and antioxidant activities.
Triloknadh Settypalli, V. Chunduri, Aruna Kumari Maddineni, Nagaraju Begari, Rajasekhar Allagadda, Peddanna Kotha, A. Chippada   +6 more
semanticscholar   +1 more source

Synthesis, antiviral and antibacterial activities and action mechanism of penta-1,4-dien-3-one oxime ether derivatives containing a quinoxaline moiety

New Journal of Chemistry, 2019
A series of penta-1,4-dien-3-one oxime ether derivatives containing a quinoxaline moiety were synthesized, and their bioactivities and action mechanism were evaluated.
Rongjiao Xia, T. Guo, Meihang Chen, Shijun Su, Jun He, Xu Tang, Shichun Jiang, Wei Xue   +7 more
semanticscholar   +1 more source

Twisted intramolecular charge transfer and aggregation-enhanced emission characteristics based quinoxaline luminogen: photophysical properties and a turn-on fluorescent probe for glutathione

Journal of Materials Chemistry C, 2019
A light-up fluorescent probe (QUPY-S) for glutathione detection based on a triphenylethylene-containing quinoxaline pyridinium salt has been developed.
Mingming Cui, Wenting Li, Lingyun Wang, Lingshan Gong, Hao Tang, D. Cao   +5 more
semanticscholar   +1 more source