a yellow crystalline water-soluble unsaturated ketone manufactured from aniline and used in the production of dyestuffs. Formula: C6H4O2
Also called: quinone. Systematic name: cyclohexadiene-1,4-quinone
Examples of 'benzoquinone' in a sentence
benzoquinone
Several of the reported systems rely on benzoquinone for re-oxidation of the active catalyst.
Casper Junker Engelin, Peter Fristrup 2011, 'Palladium Catalyzed Allylic C-H Alkylation: A Mechanistic Perspective', Moleculeshttp://www.mdpi.com/1420-3049/16/1/951/. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Moreover, the 1,4-benzoquinone subunit was contacted with an enediyne fragment.
Monika Kadela-Tomanek, Ewa Bębenek, Elwira Chrobak, Małgorzata Latocha, StanisławBoryczka 2017, 'Alkoxy and Enediyne Derivatives Containing 1,4-Benzoquinone Subunits—Synthesis andAntitumor Activity', Moleculeshttp://www.mdpi.com/1420-3049/22/3/447. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Notably, low concentrations of another oxidized compound, benzoquinone, triggered similar responses.
Bob T Rosier, Milena D Lazova 2016, 'Dose-Response Analysis of Chemotactic Signaling Response in Salmonella typhimuriumLT2 upon Exposure to Cysteine/Cystine Redox Pair.', PLoS ONEhttp://europepmc.org/articles/PMC4824473?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Tenebrionid beetles are especially prolific in this category, producing several varieties of substituted benzoquinone compounds.
Jianwei Li, Sabrina Lehmann, Bernhard Weißbecker, Irene Ojeda Naharros, Stefan Schütz,Gerrit Joop, Ernst A Wimmer 2013, 'Odoriferous Defensive stink gland transcriptome to identify novel genes necessaryfor quinone synthesis in the red flour beetle, Tribolium castaneum.', PLoS Geneticshttp://europepmc.org/articles/PMC3708791?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Subsequent chromatographic separation of this extract revealed that the active antimicrobial species present include stigmasterol and 2,6-dimethoxy-p-benzoquinone.
Jhansi R. Kalluri, Roberto Gonzalez-Rodriguez, Phil S. Hartman, Armando Loni, LeighT. Canham, Jeffery L. Coffer 2016, 'Single Plant Derived Nanotechnology for Synergistic Antibacterial Therapies', PLOS ONE10.1371/journal.pone.0163270. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The unsubstituted para-benzoquinone was the compound that exhibited the highest potency, while 2-methyl-p-benzoquinone was inactive.
Damião P. de Sousa, Franklin F. F. Nóbrega, Camila C. M. P. Santos, Rubens B. Benedito,Ygor W. Vieira, Marciana P. Uliana, Timothy J. Brocksom, Reinaldo N. de Almeida 2010, 'Anticonvulsant activity of thymoquinone and its structural analogues', Revista Brasileira de Farmacognosiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-695X2011000300012&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
One of the largest groups of natural compounds consists of products containing a 1,4-benzoquinonesubunit.
Monika Kadela-Tomanek, Ewa Bębenek, Elwira Chrobak, Małgorzata Latocha, StanisławBoryczka 2017, 'Alkoxy and Enediyne Derivatives Containing 1,4-Benzoquinone Subunits—Synthesis andAntitumor Activity', Moleculeshttp://www.mdpi.com/1420-3049/22/3/447. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
They showed high cytotoxic activity depending on the type of 1,4-benzoquinone subunit and the employed tumor cell lines.
Monika Kadela-Tomanek, Ewa Bębenek, Elwira Chrobak, Małgorzata Latocha, StanisławBoryczka 2017, 'Alkoxy and Enediyne Derivatives Containing 1,4-Benzoquinone Subunits—Synthesis andAntitumor Activity', Moleculeshttp://www.mdpi.com/1420-3049/22/3/447. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Oxidative coupling of 2-methoxy-1,4-benzoquinone and arenes in acetic acid gives methoxyaryl-substituted 1,4-benzoquinones.
Oliveira Rosilene A. de, Gusevskaya Elena V., Carazza Fernando 2002, 'Palladium/Heteropoly Acid Catalyzed Oxidative Coupling of 2-Methoxy-1,4-benzoquinonewith Arenes', Journal of the Brazilian Chemical Societyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100018. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)