Category: 55687-34-8

Dhameliya, Tejas M. et al. published their research in Journal of Organic Chemistry in 2017 | CAS: 55687-34-8

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Quinoxalines are important class of heterocyclic compounds, associated with wider pharmacological applications. Modifying quinoxaline structure it is possible to obtain a wide variety of biomedical applications, namely antimicrobial activities and chronic and metabolic diseases treatment.Product Details of 55687-34-8

Rationalization of Benzazole-2-carboxylate versus Benzazine-3-one/Benzazine-2,3-dione Selectivity Switch during Cyclocondensation of 2-Aminothiophenols/Phenols/Anilines with 1,2-Biselectrophiles in Aqueous Medium was written by Dhameliya, Tejas M.;Chourasiya, Sumit S.;Mishra, Eshan;Jadhavar, Pradeep S.;Bharatam, Prasad V.;Chakraborti, Asit K.. And the article was included in Journal of Organic Chemistry in 2017.Product Details of 55687-34-8 This article mentions the following:

The cyclocondensation reaction of 2-aminothiophenols with 1,2-biselectrophiles such as Et glyoxalate and di-Et oxalate in aqueous medium leads to the formation of benzothiazole-2-carboxylates via the 5-endo-trig process contrary to Baldwin’s rule. The reaction of 2-aminophenols/anilines produced the corresponding benzazine-3-ones or benzazine-2,3-diones via the 6-exo-trig process in compliance with Baldwin’s rule. The mechanistic insights of these cyclocondensation reactions using the hard-soft acid-base principle, quantum chem. calculations (d. functional theory), and orbital interaction studies rationalize the selectivity switch of benzothiazole-2-carboxylates vs. benzazine-3-ones/benzazine-2,3-diones. The presence of water facilitates these cyclocondensation reactions by lowering of the energy barrier. In the experiment, the researchers used many compounds, for example, 6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8Product Details of 55687-34-8).

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Quinoxalines are important class of heterocyclic compounds, associated with wider pharmacological applications. Modifying quinoxaline structure it is possible to obtain a wide variety of biomedical applications, namely antimicrobial activities and chronic and metabolic diseases treatment.Product Details of 55687-34-8

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Zhang, Lixi et al. published their research in Molecular Catalysis in 2022 | CAS: 55687-34-8

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxaline-1,4-di-N-oxide derivatives have shown to improve the biological results and are endowed with anti-viral, anti-cancer, anti-bacterial, and anti-protozoal activities with application in many other therapeutic areas.Category: quinoxaline

Visible-light-induced decarboxylative alkylation of quinoxalin-2(1H)-ones with phenyliodine(III) dicarboxylates by cerium photocatalysis was written by Zhang, Lixi;He, Jingwen;Zhang, Pengfei;Zheng, Kai;Shen, Chao. And the article was included in Molecular Catalysis in 2022.Category: quinoxaline This article mentions the following:

3-Alkylquinoxalin-2(1H)-ones I [R1 = H, 6-Me, 7-Cl, etc.; R2 = Me, Et, Pr, propargyl, allyl, Bn; R3 = Me, Et, cyclopropyl, etc.] were prepered via visible-light-induced decarboxylative alkylation of quinoxalin-2(1H)-ones with phenyliodine(III) dicarboxylate using inexpensive CeCl3 as photocatalyst. Novel protocol had advantages of mild conditions, high yields and good substrate scope. Control experiments indicated that radical mechanism was responsible for the present transformation. In the experiment, the researchers used many compounds, for example, 6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8Category: quinoxaline).

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxaline-1,4-di-N-oxide derivatives have shown to improve the biological results and are endowed with anti-viral, anti-cancer, anti-bacterial, and anti-protozoal activities with application in many other therapeutic areas.Category: quinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Zhao, Bin et al. published their research in Tetrahedron Letters in 2019 | CAS: 55687-34-8

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Quinoxalines have received a significant amount of attention due to their potential use in fighting various pathophysiological conditions like epilepsy, Parkinson’s, and Alzheimer’s diseases. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Application In Synthesis of 6-Bromoquinoxalin-2(1H)-one

Visible-light-driven cyanoalkylation of quinoxalinones using cyclobutanone oxime esters as the radical precursors was written by Zhao, Bin;Kong, Xianqiang;Xu, Bo. And the article was included in Tetrahedron Letters in 2019.Application In Synthesis of 6-Bromoquinoxalin-2(1H)-one This article mentions the following:

We have developed a versatile visible-light-driven cyanoalkylation of quinoxalinones under mild conditions. First, the cyanoalkyl radicals are generated from readily available cyclobutanone oxime esters under blue light irradiation Then the generated radicals react with heterocycles such as quinoxalinones to give the final cyanoalkylation products. The protocol tolerates a wide range of functional groups. Our cyanoalkylation protocol does not need cyanide-based reagents and also does not need external oxidants. In the experiment, the researchers used many compounds, for example, 6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8Application In Synthesis of 6-Bromoquinoxalin-2(1H)-one).

6-Bromoquinoxalin-2(1H)-one (cas: 55687-34-8) belongs to quinoxaline derivatives. Quinoxalines have received a significant amount of attention due to their potential use in fighting various pathophysiological conditions like epilepsy, Parkinson’s, and Alzheimer’s diseases. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Application In Synthesis of 6-Bromoquinoxalin-2(1H)-one

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

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The persulfate-meditated oxidative C-N bond coupling of the C-H bond of quinoxalinones and the N-H bond of NH-sulfoximines is reported. The reaction proceeds smoothly under transition metal-free conditions and provides good to excellent yields of sulfoximidoyl-functionalized quinoxalinone products under mild conditions. The optimized conditions were found to be suitable for a range of sulfoximine and quinoxalinone substrates. This reaction offers a new and convenient strategy to directly install the sulfoximine moiety into the C3 position of quinoxalinone.

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Quinoxaline – Wikipedia,
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This invention relates to cyclic combination therapies and regimens utilizing substituted indoline derivative compounds which are antagonists of the progesterone receptor having the general structure: wherein:A is O, S, or NR4;B is a bond between A and C=Q, or the moiety CR5R6; R4, R5, R6 are independently selected from H or optionally substituted C1 to C6 alkyl, C2 to C6 alkenyl, C2 to C6 alkynyl, C3 to C8 cycloalkyl, substituted C3 to C8 cycloalkyl, aryl, or heterocyclic groups, or cyclic alkyl constructed by fusing R4 and R5 to from a 5 to 7 membered ring; R1 is selected from H, OH, NH2, C1 to C6 alkyl, substituted C1 to C6 alkyl, C3 to C6 alkenyl, substituted C1 to C6 alkenyl, alkynyl, substituted alkynyl, ?COH, or optionally substituted ?CO(C1 to C3 alkyl), ?CO(aryl), ?CO(C1 to C3 alkoxy), or ?CO(C1 to C3 aminoalkyl) groups; R2 is selected from H, halogen, CN, NO2, or optionally substituted C1 to C6 alkyl C1 to C6 alkoxy, or C1 to C6 aminoalkyl groups; R3 is selected from a trisubstituted benzene ring; or a 5- or 6-membered heteroaromnatic ring containing 1 or 2 substituents; or a pharmaceutically acceptable salt thereof, in combination with a progestational agent, an estrogen, or both or for the treatment and/or prevention of secondary amenorrhea, dysfunctional bleeding, uterine leiomyomata, endometriosis; polycystic ovary syndrome, carcinomas and adenocarcinomas of the endometrium, ovary, breast, colon, prostate. These combinations may also be used to in methods of contraception, to stimulate food intake or for minimization of side effects or cyclic menstrual bleeding.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1797 | ChemSpider

 

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Herein the first example of electrochemically enabled, NiCl2-catalyzed reductive decarboxylative coupling of N-hydroxyphthalimide (NHP) esters with quinoxalinones is reported. A range of primary, secondary, tertiary aliphatic carboxylic acids and amino acid-derived esters were tolerated well. This decarboxylative coupling allows access to structurally diverse 3-alkylated quinoxalinones in up to 91% yields.

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Quinoxaline – Wikipedia,
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Described herein are compounds and pharmaceutical compositions containing such compounds, which inhibit the activity of 5-lipoxygenase (5-LO). Also described herein are methods of using such 5-LO inhibitors, alone and in combination with other compounds, for treating respiratory, cardiovascular, and other leukotriene-dependent or leukotriene mediated conditions, diseases, or disorders.

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The method comprises the following steps of :(1) 3 – reacting the reactants in a quartz, tube at room temperature at room temperature in 0.5 the following steps, 1: #1.5 STR3 N – ;(2), and (5 – 9 washing) three times with 20 – 36 ethyl, acetate/petroleum ether ;(3), 10 – 30, 20 – 30, 10 – 20 ;(4),(5), =1:5 – 10. (by machine translation)

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1800 | ChemSpider

 

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The instant invention describes compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.

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Quinoxaline – Wikipedia,
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Facile one pot synthesis of 6-substituted 2(1H)-quinoxalinones and these reaction mechanisms are described.The intramolecular cyclization reaction of 4′-substituted 2′-nitroacetoacetanilides in aqueous basic medium and the reduction of 6-substituted 2(1H)-quinoxalinone-4-oxide wit sodium borohydride or sodium hydrogensulfite were studied in detail

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Quinoxaline – Wikipedia,
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