Day: February 6, 2023

Tassone, Joseph P. et al. published their research in ACS Catalysis in 2017 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Compounds possessing quinoxaline derivatives were bestowed with a variety of significant biological properties such as antiviral, antimalarial, anticancer, DNA intercalation, DNA duplex stabilization, and many others. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Reference of 5448-43-1

Nickel-Catalyzed N-Arylation of Cyclopropylamine and Related Ammonium Salts with (Hetero)aryl (Pseudo)halides at Room Temperature was written by Tassone, Joseph P.;MacQueen, Preston M.;Lavoie, Christopher M.;Ferguson, Michael J.;McDonald, Robert;Stradiotto, Mark. And the article was included in ACS Catalysis in 2017.Reference of 5448-43-1 This article mentions the following:

Whereas the metal-catalyzed C(sp2)-N cross-coupling of cyclopropylamine with aryl electrophiles represents an attractive route to pharmaceutically relevant N-arylcyclopropylamines, few catalysts that are capable of effecting such transformations have been identified. Herein, the nickel-catalyzed C(sp2)-N cross-coupling of cyclopropylamine and related nucleophiles, including ammonium salts, with (hetero)aryl (pseudo)halides is reported for the first time, with the demonstrated scope of reactivity exceeding that displayed by all previously reported catalysts (Pd, Cu, or other). Our preliminary efforts to effect the N-arylation of cyclopropylamine with (hetero)aryl chlorides at room temperature by use of (L)NiCl(o-tolyl) pre-catalysts (L = PAd-DalPhos, C1; L = JosiPhos CyPF-Cy, C2) were unsuccessful, despite the established efficacy of C1 and C2 in transformations of other primary alkylamines. However, systematic modification of the ancillary ligand (L) structure enabled success in such transformations, with new and crystallog. characterized (L)NiCl(o-tolyl) pre-catalysts incorporating o-phenylene-bridged bisphosphines featuring either phosphatrioxaadamantane and PCy2 (L = L3, CyPAd-DalPhos; C3), P(o-tolyl)2 and P(t-Bu)2 (L = L4; C4), or PCy2 and P(t-Bu)2 (L = L5; C5) donor pairings proving to be particularly effective. In employing the air-stable pre-catalyst C3 in cross-couplings of cyclopropylamine, substituted electrophiles encompassing an unprecedentedly broad range of heteroaryl (pyridine, isoquinoline, quinoline, quinoxaline, pyrimidine, purine, benzothiophene, and benzothiazole) and (pseudo)halide (chloride, bromide, mesylate, tosylate, triflate, sulfamate, and carbamate) structures were employed successfully, in the majority of cases under mild conditions (3 mol% Ni, 25°). Preliminary studies also confirmed the ability of C3 to effect the N-arylation of cyclopropanemethylamine hydrochloride and cyclobutylamine hydrochloride under similar conditions. A notable exception in this chem. was observed specifically in the case of electron-rich aryl chlorides, where the use of C4 in place of C3 proved more effective. In keeping with this observation, catalyst inhibition by 4-chloroanisole was observed in the otherwise efficient cross-coupling of cyclopropylamine and 3-chloropyridine when using C3. Competition studies involving C3 revealed a (pseudo)halide reactivity preference (Cl > Br, OTs). In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Reference of 5448-43-1).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Compounds possessing quinoxaline derivatives were bestowed with a variety of significant biological properties such as antiviral, antimalarial, anticancer, DNA intercalation, DNA duplex stabilization, and many others. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Reference of 5448-43-1

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Chen, Zhixiang et al. published their research in Organic Letters in 2019 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) 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.Quality Control of 6-Chloroquinoxaline

Cu/N,N’-Dibenzyloxalamide-Catalyzed N-Arylation of Heteroanilines was written by Chen, Zhixiang;Ma, Dawei. And the article was included in Organic Letters in 2019.Quality Control of 6-Chloroquinoxaline This article mentions the following:

N,N’-Dibenzyloxalamide (DBO) was identified as a powerful ligand for promoting Cu-catalyzed coupling of heteroanilines with (hetero)aryl halides. For (hetero)aryl chlorides, the coupling reaction occurred at 130 °C with 5 mol % CuBr and 10 mol % DBO. For (hetero)aryl bromides/iodides, coupling reaction took place at 80-100 °C with 1 mol % CuI and 2 mol % DBO. A variety of heteroanilines worked well to afford the arylation products in good to excellent yields. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Quality Control of 6-Chloroquinoxaline).

6-Chloroquinoxaline (cas: 5448-43-1) 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.Quality Control of 6-Chloroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Wang, Xiu-Zhi et al. published their research in Tetrahedron in 2019 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Name: 6-Chloroquinoxaline

Iron-catalyzed Minisci acylation of N-heteroarenes with α-keto acids was written by Wang, Xiu-Zhi;Zeng, Cheng-Chu. And the article was included in Tetrahedron in 2019.Name: 6-Chloroquinoxaline This article mentions the following:

An efficient and mild protocol was developed for the Minisci acylation reactions of nitrogen-containing heteroarenes with α-keto acids to afford acyl-pyrazine derivatives e.g., I. Distinct from the conventional Minisci acylation conditions, the chem. was performed using non-noble metal Fe(II), instead of expensive Ag(I) salt as catalyst. A wide range of substrates, including aliphatic or aromatic α-keto acids, as well as various N-heteroarenes, proved to be compatible with the protocol. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Name: 6-Chloroquinoxaline).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. Quinoxalines are used as dyes, pharmaceuticals, and antibiotics such as echinomycin, levomycin exhibiting antitumoral properties. Quinoxalines establish also the basis of anthelmintics and receptor antagonists.Name: 6-Chloroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Szanto, Gabor et al. published their research in Bioorganic & Medicinal Chemistry Letters in 2020 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline is isomeric with other naphthyridines including quinazoline, phthalazine and cinnoline. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Related Products of 5448-43-1

New V1a receptor antagonist. Part 1. Synthesis and SAR development of urea derivatives was written by Szanto, Gabor;Mako, Attila;Baska, Ferenc;Bozo, Eva;Domany-Kovacs, Katalin;Kurko, Dalma;Cselenyak, Attila;Mohacsi, Reka;Kordas, Krisztina Szondine;Bata, Imre. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2020.Related Products of 5448-43-1 This article mentions the following:

Solid preclin. evidence links vasopressin to social behavior in animals, so, extensive work has been initiated to find new vasopressin V1a receptor antagonists which can improve deteriorated social behavior in humans and can treat the core symptoms of autistic behavior, as well. Our aim was to identify new chem. entities with antagonizing effects on vasopressin V1a receptors. Starting from a moderately potent HTS hit (7), we identified a mol. (49)(I) having nanomolar binding strength and functional activity, which is in the same range as the potency of clin. tested V1a antagonists. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Related Products of 5448-43-1).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline is isomeric with other naphthyridines including quinazoline, phthalazine and cinnoline. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Related Products of 5448-43-1

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Luger, Peter et al. published their research in Helvetica Chimica Acta in 1977 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used in the treatment of bacterial, cancer, and HIV infections. Moreover, varenicline, a clinical drug is used for treating nicotine addiction, also contains quinoxaline moiety.Application of 5448-43-1

Macrocyclic aza compounds. IV. Synthesis and x-ray analysis of 2-(2-2H-benzotriazolyl)-N-(6-quinoxalinyl)aniline, the rearrangement product from 1,2-bis(2-aminophenylazo)benzene and glyoxal was written by Luger, Peter;Malkowski, Jerzy;Skrabal, Peter. And the article was included in Helvetica Chimica Acta in 1977.Application of 5448-43-1 This article mentions the following:

The title compound (I) was prepared in 3% yield by treating 6-chloroquinoxaline with 2-(2-aminophenyl)-2H-benzotriazole in the presence of Cu-K2CO3. X-ray anal. showed that I is identical with the condensation product of o-C6H4(N:NC6H4NH2-o)2 and glyoxal. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Application of 5448-43-1).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used in the treatment of bacterial, cancer, and HIV infections. Moreover, varenicline, a clinical drug is used for treating nicotine addiction, also contains quinoxaline moiety.Application of 5448-43-1

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Fernandes, P. S. et al. published their research in Journal of the Indian Chemical Society in 1986 | CAS: 49679-45-0

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including as well as for RNA synthesis inhibition, reactive dyes and pigments, azo dyes, flurox Cylin Dyes, Corrosion Inhibitors and Photovoltaic Polymers. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Application of 49679-45-0

Synthesis and biological activity of heterocyclic derivatives derived from ethyl-2-hydroxyquinoxaline-3-carboxylate was written by Fernandes, P. S.;Sonar, T. M.. And the article was included in Journal of the Indian Chemical Society in 1986.Application of 49679-45-0 This article mentions the following:

The heterocyclic derivatives of morpholinoquinoxaine I (R = Ph, 4-MeOC6H4, 4-ClC4H4; X = O, S) and II were prepared from Et 2-chloroquinoxaline-3-carboxylate in 4 steps, and were tested for their antibacterial activity. In the experiment, the researchers used many compounds, for example, Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0Application of 49679-45-0).

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including as well as for RNA synthesis inhibition, reactive dyes and pigments, azo dyes, flurox Cylin Dyes, Corrosion Inhibitors and Photovoltaic Polymers. The antitumoral properties of quinoxaline compounds have been of interest. Recently, quinoxaline and its analogs have been investigated as the catalyst’s ligands.Application of 49679-45-0

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Piras, Sandra et al. published their research in Farmaco in 2002 | CAS: 49679-45-0

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used in the treatment of bacterial, cancer, and HIV infections. Moreover, varenicline, a clinical drug is used for treating nicotine addiction, also contains quinoxaline moiety.Application In Synthesis of Ethyl 3-chloroquinoxaline-2-carboxylate

Quinoxaline chemistry. Part 14. 4-(2-Quinoxalylamino)-phenylacetates and 4-(2-quinoxalylamino)-phenylacetyl-l-glutamates as analogues-homologues of classical antifolate agents. Synthesis and evaluation of in vitro anticancer activity was written by Piras, Sandra;Loriga, Mario;Paglietti, Giuseppe. And the article was included in Farmaco in 2002.Application In Synthesis of Ethyl 3-chloroquinoxaline-2-carboxylate This article mentions the following:

Among a new series of 26 4-(3-substituted-2-quinoxalylamino)phenylacetates and 4-(3-substituted-2-quinoxalylamino)phenylacetyl-l-glutamates, eight were selected at NCI for evaluation of their in vitro anticancer activity. The results obtained in comparison with the corresponding nor-compounds series seem to indicate that this type of homologation is not helpful. In the experiment, the researchers used many compounds, for example, Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0Application In Synthesis of Ethyl 3-chloroquinoxaline-2-carboxylate).

Ethyl 3-chloroquinoxaline-2-carboxylate (cas: 49679-45-0) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. Quinoxalines are used in the treatment of bacterial, cancer, and HIV infections. Moreover, varenicline, a clinical drug is used for treating nicotine addiction, also contains quinoxaline moiety.Application In Synthesis of Ethyl 3-chloroquinoxaline-2-carboxylate

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Baraldi, Pier G. et al. published their research in Collection of Czechoslovak Chemical Communications in 1992 | CAS: 141234-08-4

Quinoxaline-5-carbaldehyde (cas: 141234-08-4) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Recommanded Product: Quinoxaline-5-carbaldehyde

Synthesis and calcium antagonist activity of dialkyl 1,4-dihydro-2,6-dimethyl-4-(nitrogenous heteroaryl)-3,5-pyridine dicarboxylates was written by Baraldi, Pier G.;Budriesi, Roberta;Cacciari, Barbara;Chiarini, Alberto;Garuti, Laura;Giovanninetti, Giuseppe;Leoni, Alberto;Roberti, Marinella. And the article was included in Collection of Czechoslovak Chemical Communications in 1992.Recommanded Product: Quinoxaline-5-carbaldehyde This article mentions the following:

A new series of 4-(nitrogenous heteroaryl)-1,4-dihydropyridine (I, R1 = e.g., indol-2-yl, quinolin-4-yl, quinoxalin-5-yl, R1 = Me or Et) antagonists were synthesized and screened for inotropic, chronotropic and calcium antagonist properties, in order to evaluate the effect on pharmacol. activity of replacement of the 4-aryl group of nifedipine-like drugs by heterocyclic moieties, such as quinoline, indole, carbazole and pyrazole. The most potent bradycardic compounds of the series elicited weak calcium antagonist activity and were stronger neg. inotropic. In the experiment, the researchers used many compounds, for example, Quinoxaline-5-carbaldehyde (cas: 141234-08-4Recommanded Product: Quinoxaline-5-carbaldehyde).

Quinoxaline-5-carbaldehyde (cas: 141234-08-4) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Recommanded Product: Quinoxaline-5-carbaldehyde

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Lyu, Xue-Li et al. published their research in Journal of Organic Chemistry in 2020 | CAS: 141234-08-4

Quinoxaline-5-carbaldehyde (cas: 141234-08-4) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Electric Literature of C9H6N2O

Rhodium(III)-Catalyzed Direct Coupling of Quinoline-8-Carbaldehydes with (Het)Arylboronic Acids for the Synthesis of 8-Aryloylquinolines was written by Lyu, Xue-Li;Huang, Shi-Sheng;Huang, Yuan-Qiong;Li, Yong-Qiang;Song, Hong-Jian;Liu, Yu-Xiu;Wang, Qing-Min. And the article was included in Journal of Organic Chemistry in 2020.Electric Literature of C9H6N2O This article mentions the following:

Herein, we describe a method for the synthesis of aryl-(het)aryl ketones by Rh(III)-catalyzed direct coupling between quinoline-8-carbaldehydes and (het)arylboronic acids. The method has a broad substrate scope, a high functional group tolerance, and uses com. available starting materials. Scale-up of the reaction and subsequent synthesis of tubulin polymerization inhibitor demonstrated its utilities. A plausible mechanism was proposed on the basis of the fact that a stable cycloacylrhodium intermediate complex could be used as catalyst, and the complex reacted stoichiometrically with (het)arylboronic acids. In the experiment, the researchers used many compounds, for example, Quinoxaline-5-carbaldehyde (cas: 141234-08-4Electric Literature of C9H6N2O).

Quinoxaline-5-carbaldehyde (cas: 141234-08-4) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Electric Literature of C9H6N2O

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

 

Larson, Helen et al. published their research in Journal of Organic Chemistry in 2019 | CAS: 5448-43-1

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. Modifying quinoxaline structure it is possible to obtain a wide variety of biomedical applications, namely antimicrobial activities and chronic and metabolic diseases treatment.Application of 5448-43-1

Ni-Catalyzed C-H Arylation of Oxazoles and Benzoxazoles Using Pharmaceutically Relevant Aryl Chlorides and Bromides was written by Larson, Helen;Schultz, Danielle;Kalyani, Dipannita. And the article was included in Journal of Organic Chemistry in 2019.Application of 5448-43-1 This article mentions the following:

This manuscript details the development of the nickel-catalyzed arylation of oxazoles and benzoxazoles with aryl halides. A series of aryl, heteroaryl, and druglike electrophiles relevant to pharmaceutical applications were surveyed. The desired arylated products were obtained in synthetically useful yields using electronically and structurally varied aryl halides. The use of microscale high-throughput experimentation was essential for both the rapid identification of optimal reaction parameters and the investigation of the aryl halide scope. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Application of 5448-43-1).

6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including antibacterial, antibiotic and antineoplastic, antifungal, anti-inflammatory and analgesic drugs. Modifying quinoxaline structure it is possible to obtain a wide variety of biomedical applications, namely antimicrobial activities and chronic and metabolic diseases treatment.Application of 5448-43-1

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider