21772-34-9Relevant academic research and scientific papers
Dinuclear RuIIcomplexes with quinonoid bridges: Tuning the electrochemical and spectroscopic properties of redox-switchable NIR dyes through judicious bridge design
Beerhues, Julia,Chandra, Shubhadeep,Klenk, Sinja,Sarkar, Biprajit,Schweinfurth, David,Weisser, Fritz
, p. 8354 - 8366 (2020/07/10)
Bridging quinonoid ligands are important platforms for generating metal-based switchable optoelectronic and magnetic materials. A possible sound way of influencing the properties of the aforementioned materials is to modify the direct metal-ligand interfa
Synthesis, biological evaluation, and molecular docking studies of 2,5-substituted-1,4-benzoquinone as novel urease inhibitors
You, Zhong-Lu,Xian, Dong-Mei,Zhang, Mei,Cheng, Xiao-Shan,Li, Xiao-Fang
experimental part, p. 4889 - 4894 (2012/09/21)
A series of 2,5-substituted-1,4-benzoquinone (1-6) were prepared and structurally characterized by elemental analysis, IR spectra, 1H and 13C NMR spectra, and single crystal X-ray determination. The urease inhibitory activities of the compounds against H. pylori urease were studied. Among the compounds, 2,5-bis(2-morpholin-4-ylethylamino)-[1,4]benzoquinone (2) shows the most effective activity with IC50 value of 27.30 ± 2.17 μM. Docking simulation was performed to insert compound 2 into the crystal structure of H. pylori urease at the active site to determine the probable binding mode. As a result, compound 2 may be used as a potential urease inhibitor.
THYMOQUINONE ANALOGS FOR THE TREATMENT OF PANCREATIC CANCER
-
Page/Page column 5; 9, (2011/10/31)
Analogs of thymoquinone, an active compound extracted from Nigellasativa (black seed oil) are 2,5-bis (alkyl/aryl amino) 1, 4-benzoquinones, are more potent than the naturally-occurring compound (e.g, have a lower IC50) in terms of inhibition o
Straightforward synthesis of substituted p-Quinones: Isolation of a key intermediate and use as a bridging ligand in a diruthenium complex
Das, Hari Sankar,Weisser, Fritz,Schweinfurth, David,Su, Cheng-Yong,Bogani, Lapo,Fiedler, Jan,Sarkar, Biprajit
supporting information; experimental part, p. 2977 - 2981 (2010/06/21)
(Figure Presented) Keep it simple: A new transamination method is reported for the synthesis of diamino-substituted p-quinones (see scheme). Asymmetrically substituted p-quinones are shown to be key intermediates in this reaction. The redox properties of these ligands are discussed and their utility in coordination and redox chemistry is shown with a representative example.
Synthesis and biological evaluation of 2,5-bis(alkylamino)-1,4- benzoquinones
Barbosa, Luiz Claudio Almeida,Pereira, Ulisses Alves,Maltha, Celia Regina Alvares,Teixeira, Robson Ricardo,Valente, Vania Maria Moreira,Ferreira, Jose Roberto Oliveira,Costa-Lotufo, Leticia Veras,Moraes, Manoel Odorico,Pessoa, Claudia
experimental part, p. 5629 - 5643 (2010/12/24)
A series of twelve 2,5-bis(alkylamino)-1,4-benzoquinones were prepared in yields ranging from 9-58% via the reaction between p-benzoquinone and various amines. The structures of the synthesized compounds were confirmed by IR, 1H- and 13/s
Structure-activity studies on therapeutic potential of thymoquinone analogs in pancreatic cancer
Banerjee, Sanjeev,Azmi, Asfar S.,Padhye, Subhash,Singh, Marjit W.,Baruah, Jubaraj B.,Philip, Philip A.,Sarkar, Fazlul H.,Mohammad, Ramzi M.
scheme or table, p. 1146 - 1158 (2011/03/21)
Purpose: Pancreatic cancer (PC) is one of the deadliest of all tumors. Previously, we were the first to show that Thymoquinone (TQ) derived from black seed (Nigella sativa) oil has anti-tumor activity against PC. However, the concentration of TQ required
Synthesis of 2,5-Diaminoquinones by one-pot copper-catalyzed aerobic oxidation of hydroquinones and addition reaction of amines
Kim, Sungjin,Kim, Daehwan,Park, Jaiwook
experimental part, p. 2573 - 2578 (2009/12/29)
The aerobic oxidation of various hydroquinones was achieved by using copper nanoparticles entrapped in aluminum oxyhydroxide [Cu/ AlO(OH)] at room temperature. Furthermore, 2,5diamino-1,4-benzoquinones were synthesized directly from hydroquinone and amines by a one-pot procedure consisting of the copper-catalyzed aerobic oxidation of hydroquinones and the double addition of amines to the resulting quinones.
