Results 101 to 110 of about 29,062 (270)

Sinteza i biološko djelovanje novih 1-benzil i 1-benzoil 3-heterocikličkih derivata indola [PDF]

, 2010
Starting from 1-benzyl- (2a) and 1-benzoyl-3-bromoacetyl indoles (2b) new heterocyclic, 2-thioxoimidazolidine (4a,b), imidazolidine-2,4-dione (5a,b), pyrano(2,3-d)imidazole (8a,b and 9a,b), 2-substituted quinoxaline (11a,b–17a,b) and triazolo(4,3-a ...
A. Barry, A. Kar, A. Mandour, A. Mndzhoyan, E. El-Sawy, E. Szymanska, Eslam El-Sawy, Fatma Bassyouni, Hanaa Rady, J. Dickstein, J. Okuda, J. William, K. Bodendorf, M. Radwan, Mohamed Abdlla, R. Cao, R. Tiwari, S. Kotharkar, S. Martin, S. Sondhi, Sherifa Abu-Bakr, T. Mosmann, W. Qinjie, W. Reeve   +23 more
core   +2 more sources

Spirobisindane‐Based Hole Transporting Materials for Conventional and Indoor Halide Perovskite Solar Cells

Solar RRL, EarlyView.
This study reports two spirobisindane‐based novel hole transport materials(AS‐135 and AS‐179) for conventional and indoor perovskite solar cells. Hole transporting materials (HTMs) are a vital component for both conventional and indoor perovskite solar cells.
Abdul‐Wasir Shaka, Shaoyang Wang, Nirmal Prashanth Maria Joseph Raj, Raja Sekhar Muddam, Neil B. McKeown, Dominic Taylor, Lethy Krishnan Jagadamma, Graeme Cooke   +7 more
wiley   +1 more source

Pyrazine‐Embedded 2D Conjugated Metal–Organic Framework with Quasi‐Honeycomb Lattice for High‐Capacitance Lithium‐Ion Storage

Angewandte Chemie, Volume 137, Issue 27, July 1, 2025.
A Cu‐OHDDQP 2D conjugated metal–organic framework (2D c‐MOF) was synthesized possessing a unique quasi‐honeycomb topology, from a pyrazine‐fused, D2‐symmetric ligand. The achieved 2D c‐MOF electrode displayed a remarkable gravimetric capacitance up to 452 A g−1 for electrochemical lithium storage.
Xiangyu Li, Yangyang Feng, Shuai Fu, Tianrui Wu, Peng Liang, Xicheng Ma, Rashid Iqbal, Yuzhen Qian, Yandong Ma, Mischa Bonn, Hua Wang, Hongjie Dai, Jingcheng Hao, Renhao Dong   +13 more
wiley   +2 more sources

One-pot three-component synthesis of quinoxaline and phenazine ring systems using Fischer carbene complexes

Beilstein Journal of Organic Chemistry, 2010
One-pot three-component coupling of o-alkynylheteroaryl carbonyl derivatives with Fischer carbene complexes and dienophiles leading to the synthesis of quinoxaline and phenazine ring systems has been investigated. This involves the generation of furo[3,4-
Priyabrata Roy, Binay Krishna Ghorai
doaj   +1 more source

7′-Nitro-6′-phenyl-1′,6′,7′,7a′-tetrahydro-spiro[indeno[1,2-b]quinoxaline-11,5′-pyrrolo[1,2-c][1,3]thiazole]

IUCrData, 2017
In the title compound, C26H20N4O2S, the thiazole and pyrrolidine rings adopt envelope conformations with the respective flap atoms being the N atom and the nitro-bearing C atom. The phenyl and indenoquinoxaline planes are oriented at an angle of 66.72 (1)
C. Muthuselvi, M. Muthu, S. Athimoolam, B. Ravikumar, S. Pandiarajan, R. V. Krishnakumar   +5 more
doaj   +1 more source

Evidence that 5‐HT2A receptor signalling efficacy and not biased agonism differentiates serotonergic psychedelic from non‐psychedelic drugs

British Journal of Pharmacology, EarlyView.
Background and Purpose Serotonergic psychedelic drugs are under investigation as therapies for various psychiatric disorders, including major depression. Although serotonergic psychedelic drugs are 5‐HT2A receptor agonists, some such agonists are not psychedelic, potentially due to differences in 5‐HT2A receptor ligand bias or signalling efficacy. Here,
Aurelija Ippolito, Sridhar Vasudevan, Shaun Hurley, Gary Gilmour, Frederick Westhorpe, Grant Churchill, Trevor Sharp   +6 more
wiley   +1 more source

Crystal structure and Hirshfeld surface analysis of 3-phenyl-1-{3-[(3-phenylquinoxalin-2-yl)oxy]propyl}-1,2-dihydroquinoxalin-2-one

Acta Crystallographica Section E: Crystallographic Communications
In the title compound, C31H24N4O2, the quinoxaline units are distinctly non-planar and twisted end-to-end. In the crystal, C—H...O and C—H...N hydrogen bonds link the molecules into chains extending along the a-axis direction.
Nadeem Abad, Joel T. Mague, Abdulsalam Alsubari, El Mokhtar Essassi, Abdullah Yahya Abdullah Alzahrani, Youssef Ramli   +5 more
doaj   +1 more source

New Amide Derivatives of Quinoxaline 1,4-di-N-Oxide with Leishmanicidal and Antiplasmodial Activities

Molecules, 2013
Malaria and leishmaniasis are two of the World’s most important tropical parasitic diseases. Continuing with our efforts to identify new compounds active against malaria and leishmaniasis, twelve new 1,4-di-N-oxide quinoxaline derivatives were ...
Eric Deharo, German Gonzalez, Antonio Monge, Silvia Pérez-Silanes, Silvia Galiano, Carlos Barea, Adriana Pabón, Ignacio Aldana   +7 more
doaj   +1 more source

Antimicrobial activity of quinoxaline 1,4-dioxide and three derivatives [PDF]

, 2014
O presente trabalho descreve o estudo da actividad e antimicrobiana de quarto derivados da quinoxalina N,N-dióxido: quinoxalina 1,4-dióxido, 2-metilquinoxalina 1,4- dióxido, 6-cloro-2,3-dimetilquinoxalina 1,4-dióxido e 3-benzoil-2-metilquinoxalina 1,4-
Fernandes, Rúben, Noronha, João Paulo, Prudêncio, Cristina, Silva, M., Vieira, Mónica   +4 more
core  

Chemical constitutions in the Colour Index™: A century of colourant classification

Coloration Technology, Volume 141, Issue 4, Page 427-472, August 2025.
Abstract This article details how the Colour Index™ (CI) system categorises and unambiguously labels commercial dyes and pigments based upon their chemical constitutions. It outlines the current process by which colourants that are new to the market find a place within CI and acquire generic identifiers.
Andrew Towns
wiley   +1 more source