Results 71 to 80 of about 9,595 (171)

rac-(2R,3S)-2-Phenyl-3-(3-phenyl-1,2,3,4-tetrahydroquinoxalin-2-yl)quinoxaline

Acta Crystallographica Section E, 2008
The title compound, C28H22N4, is the unexpected by-product of the reaction of 2-hydroxyacetophenone and 1,2-diaminobenzene under iodine catalysis, during which a carbon–carbon σ-bond between two quinoxaline units was formed.
Sven Ammermann, Constantin Daniliuc, Peter G. Jones, Wolf-Walther du Mont, Hans-Hermann Johannes   +4 more
doaj   +1 more source

Edible Qualities and Flavor Omics of Peanut‐Soybean Dajiang

Food Science &Nutrition, Volume 14, Issue 3, March 2026.
Dajiang is a fermented beans‐based condiment that is widely popular in Northeast China. In this study, peanut‐soybean Dajiang was successfully prepared by adding peanut to the Dajiang production process and optimizing the fermentation conditions. It was found that the addition of peanuts significantly enhanced the umami, saltiness and compound taste of
Yu Miao, Xu Liwei, Sun Yu, Xie Mengxi, Zhang Liangchen, Yang Hui   +5 more
wiley   +1 more source

Biotrophic Interactions Between a Mycoparasitic Ampelomyces Fungus and Podosphaera xanthii on Fungicide‐Treated Melon Leaves

Plant Pathology, Volume 75, Issue 2, March/April 2026.
The digital micrographs show images of the infection progress by the mycoparasitic Ampelomyces strain in a melon powdery mildew fungus Podosphaera xanthii that was treated with kresoxim‐methyl and sprayed with Ampelomyces spores under the high‐humidity conditions of a growth chamber.
Yuito Sato, Haruna Ikoma, Márk Z. Németh, Risa Tsumura, Diána Seress, Levente Kiss, Teruo Nonomura   +6 more
wiley   +1 more source

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

SYNTHESIS OF QUINOXALINES

, 2023
Quinoxalines are a group of antibiotics widely used in medicine to fight bacterial infections.These antibiotics have a broad spectrum of action and belong to the class of 4 quinolones. Theirmechanism of action is based on inhibiting the activity of bacterial enzymes responsible for DNAsynthesis, which leads to their death. Due to this, quinoxalines are
openaire   +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

Ethyl 2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetate

IUCrData, 2018
In the title compound, C12H14N2O3, the conformation of the ester substituent is partially determined by an intramolecular N—H...O hydrogen bond. The crystal packing consists of layers parallel to (\overline{1}12) held together by N—H...O and C—H...O ...
Nadeem Abad, Jihad Sebhaoui, Youness El Bakri, Youssef Ramli, El Mokhtar Essassi, Joel T. Mague   +5 more
doaj   +1 more source

2-Phenylthieno[2,3-b]quinoxaline

Acta Crystallographica Section E Structure Reports Online, 2012
The title compound, C(16)H(10)N(2)S, is almost planar (r.m.s. deviation for all non-H atoms = 0.080 Å). The dihedral angle between the three fused-ring system and the phenyl ring is 9.26 (3)°. The S atom and the opposite C atom of the thio-phene ring are mutually disordered with an occupancy ratio of 0.7706 (19):0.2294 (19).
Youssef Ramli, H. Zouihri, M. Azize, Ahmed Moussaif, El Mokhtar Essassi   +4 more
openaire   +3 more sources

Chemistry and pharmacological diversity of quinoxaline motifs as anticancer agents

Acta Pharmaceutica, 2019
Surpassing heart diseases, cancer is taking the lead as the deadliest disease because of its fast rate of spreading in all parts of the world. Tireless commitment to searching for novel therapeutic medicines is a worthwhile adventure in synthetic ...
Ajani Olayinka O., Nlebemuo Martins T., Adekoya Joseph A., Ogunniran Kehinde O., Siyanbola Tolutope O., Ajanaku Christiana O.   +5 more
doaj   +1 more source

Ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br): a green and neutral reaction media for the efficient, catalyst-free synthesis of quinoxaline derivatives [PDF]

Journal of the Serbian Chemical Society, 2010
Quinoxaline derivatives were produced in excellent yields and short reaction times via the condensation of 1,2-diamines with 1,2-diketones in the neutral ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br) under catalyst-free and microwave ...
MAASOOMEH KHEDRI, MAASOOMEH ABDOLALIPOOR-SARETOLI, ZAHRA PARSAEE, FATEMEH KHEDRI, AHMAD REZA MOOSAVI-ZARE, ABOLFATH PARHAMI, ALIREZA HASANINEJAD, ABDOLKARIM ZARE, MEHRNOOSH ROSHANKAR, HANAFIEH DEISI   +9 more
doaj