Category: 34413-35-9

Bemis-Young, Gwen L.; Huang, Jeane; Bernhard, Richard A. published an article in 1993, the title of the article was Effect of pH on pyrazine formation in glucose-glycine model systems.Recommanded Product: 34413-35-9 And the article contains the following content:

Pyrazines produced from a D-glucose/glycine model browning system at eight pH values ranging from 1 to 12 were isolated by extraction and identified by combined gas chromatog./mass spectrometry. Thirty-two compounds were identified in this study including: 19 pyrazines, nine other nitrogen-containing (nonpyrazine) products, and four oxygenated products. As the pH increased, the number of pyrazines produced also increased. The greatest varieties of pyrazines were produced at pH 9.00 and 9.64, in which all 19 pyrazines detected in this study were formed at trace or greater quantities. The major pyrazines generated were 2,3,5-trimethylpyrazine, 2,5-dimethylpyrazine, 2-ethyl-3,5-dimethylpyrazine, 2,3-diethyl-5-methylpyrazine, 2,3,5,6-tetramethylpyrazine and 2,3-diethylpyrazine. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Recommanded Product: 34413-35-9

The Article related to ph pyrazine formation glucose glycine browning, Food and Feed Chemistry: Physical, Organic, and Inorganic Chemistry and Model Systems and other aspects.Recommanded Product: 34413-35-9

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On May 18, 2005, Adams, An; Borrelli, Rosa Cinzia; Fogliano, Vincenzo; De Kimpe, Norbert published an article.Product Details of 34413-35-9 The title of the article was Thermal Degradation Studies of Food Melanoidins. And the article contained the following:

Food melanoidins were isolated from bread crust, coffee, and tomato sauce and their composition was investigated by thermal degradation Among the generated volatiles, important food flavor compounds were detected: in particular furans, carbonyl compounds, 1,3-dioxolanes, pyrroles, pyrazines, pyridines, thiophenes, and phenols. The results indicated that the isolated melanoidin fractions mainly consisted of compounds formed from carbohydrates and their degradation products. Besides proteins, other food constituents were incorporated in the melanoidin structure as well, such as lipid oxidation products in tomato melanoidins and phenolic compounds in coffee melanoidins. A comparison of the thermal generation of volatiles between these food-derived melanoidins and model melanoidins prepared from a single carbonyl compound and an amino acid showed that the degradation pattern of food melanoidins is quite different from that obtained from a glucose-glycine model system. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Product Details of 34413-35-9

The Article related to thermal degradation food melanoidin, Food and Feed Chemistry: Physical, Organic, and Inorganic Chemistry and Model Systems and other aspects.Product Details of 34413-35-9

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Pittet, Alan O.; Muralidhara, R.; Walradt, J. P.; Kinlin, T. published an article in 1974, the title of the article was Synthesis and properties of alkylated five-and six-membered alicyclic pyrazines.Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline And the article contains the following content:

A series of mono-, di-, and trialkyl derivatives of 6,7-dihydro-5H-cyclopentapyrazine and 5,6,7,8-tetrahydroquinoxaline was prepared either by condensation of α,β-dicarbonyls with α,β-diamines and subsequent oxidative aromatization or by alkylation of the bicyclic pyrazines. The gas chromatog. retention indexes and ir, uv, NMR, and mass spectral data of these derivatives are presented, together with a summary of their natural occurrence to date. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline

The Article related to alkylcyclopentapyrazine, cyclopentapyrazine alkyl, pyrazine alkylcyclopenta, tetrahydroquinoxaline, quinoxaline tetrahydro, food odor pyrazine, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines and other aspects.Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On June 30, 2000, Wei, Shuping; Zhang, Hua; Xu, Xiaobin; Yang, Yayan published an article.Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline The title of the article was Natural-existed pyrazine derivatives and their application to flavors. And the article contained the following:

A series of natural-existed pyrazine derivatives were studied in relation to regularities between their aroma and structure, and also showed some application as flavorant. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline

The Article related to pyrazine derivative flavor application, Food and Feed Chemistry: Additives, Sweeteners, Flavorings, Condiments, and Confectionery and other aspects.Recommanded Product: 5,6,7,8-Tetrahydroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On April 1, 2022, Song, Shengjie; Shi, Xiangjun; Zhu, Yunsheng; Ren, Quanlei; Zhou, Peng; Zhou, Jiadi; Li, Jianjun published an article.Reference of 5,6,7,8-Tetrahydroquinoxaline The title of the article was Electrochemical Oxidative C-H Arylation of Quinoxalin(on)es with Arylhydrazine Hydrochlorides under Mild Conditions. And the article contained the following:

A practical and scalable protocol for electrochem. arylation of quinoxalin(on)es with arylhydrazine hydrochlorides under mild conditions was developed. This method exhibited high efficiency, easy scalability, and broad functional group tolerance. Various quinoxalin(on)es and arylhydrazines underwent this transformation smoothly in an undivided cell, providing the corresponding aryl-substituted quinoxalin(on)es in moderate to good yields. A radical mechanism was involved in this arylation reaction. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Reference of 5,6,7,8-Tetrahydroquinoxaline

The Article related to quinoxaline arylhydrazine hydrochloride electrochem oxidative arylation, arylquinoxaline preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Reference of 5,6,7,8-Tetrahydroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On March 20, 2008, Kumar, Ajeet; Kumar, Santosh; Saxena, Amit; De, Arnab; Mozumdar, Subho published an article.Formula: C8H10N2 The title of the article was Ni-nanoparticles: An efficient catalyst for the synthesis of quinoxalines. And the article contained the following:

Biol. active quinoxalines were efficiently synthesized in excellent yields and in less reaction time using inexpensive, monodispersed and easily recyclable Ni-nanoparticles. In order to elucidate the role of the Ni-nanoparticles, a control reaction was conducted using glyoxal and o-phenylenediamine in acetonitrile in the absence of Ni-nanoparticles. Quinoxaline was formed in around 10 h with a 30% yield. However, the same reaction carried out in acetonitrile using 10 mol.% of Ni-nanoparticles (14-18 nm) at 25° and stirred under N2 gave quinoxaline in quant. yield in 10 min. The separation of the product was facile and the catalyst could be separated and recycled by mild centrifugation. This method is very quick, avoids the use of expensive reagents, high temperatures (the reaction takes place at room temperature) and leads to excellent yield. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Formula: C8H10N2

The Article related to quinoxaline preparation glyoxal phenylenediamine nickel nanoparticle catalyst, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Formula: C8H10N2

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On March 15, 2022, Liu, Fu; Chen, Li-Ning; Chen, Ai-Min; Ye, Zhi-Peng; Wang, Zhi-Wei; Liu, Zhi-Lin; He, Xian-Chen; Li, Shu-Hui; Xia, Peng-Ju published an article.Computed Properties of 34413-35-9 The title of the article was Mechanochemical Synthesis of 2-Arylquinoxalines and 3-Arylquinoxalin-2(1H)-ones via Aryldiazonium Salts. And the article contained the following:

A green synthesis strategy of 2-arylquinoxalines I [Ar = Ph, 4-ClC6H4, 4-NCC6H4, etc.] and 3-arylquinoxalin-2(1H)-ones II [Ar = 4-MeC6H4, 4-FC6H4, 3-ClC6H4, etc.] via ball milling, which could avoid copious solvent waste, was accomplished in this work. Aryl radicals were produced from aryldiazonium salts by using a solvent-free or catalyst-free single electron transfer process induced by mech. force, afforded a series of 2-arylquinoxalines and 3-arylquinoxalin-2(1H)-ones with 28%-85 yield. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Computed Properties of 34413-35-9

The Article related to arylquinoxaline green preparation, arylquinoxalinone green preparation, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Computed Properties of 34413-35-9

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On March 23, 2017, Ucar, Sefa; Essiz, Selcuk; Dastan, Arif published an article.HPLC of Formula: 34413-35-9 The title of the article was Bromination of quinoxaline and derivatives: Effective synthesis of some new brominated quinoxalines. And the article contained the following:

The synthesis of brominated quinoxaline derivatives starting from several kinds of quinoxaline by different bromination strategies was studied. First the synthesis of some brominated quinoxalines was accomplished along with the development of an alternative and effective synthesis of some known compounds A new, clean, and effective synthetic method for selective reduction of quinoxaline to 1,2,3,4-tetrahydroquinoxaline was also developed. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).HPLC of Formula: 34413-35-9

The Article related to brominated quinoxaline preparation, quinoxaline bromination, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.HPLC of Formula: 34413-35-9

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On April 30, 1986, Houminer, Y.; Southwick, E. W.; Williams, D. L. published an article.Application In Synthesis of 5,6,7,8-Tetrahydroquinoxaline The title of the article was Preparation of monoacylpyrazines. And the article contained the following:

Homolytic acylation of pyrazine and alkylpyrazines by aldehydes, as a source of an acyl radical, gives mainly monoacylation products. The reactions proceed in reasonable yields and provide a new route to pyrazine ketones. Thus, stirring pyrazine with EtCHO in water in the presence of H2SO4, t-BuOOH, and FeSO4 gave 29% pyrazine I. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Application In Synthesis of 5,6,7,8-Tetrahydroquinoxaline

The Article related to acylpyrazine, pyrazine acylation aldehyde, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Application In Synthesis of 5,6,7,8-Tetrahydroquinoxaline

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

On October 14, 2010, Jiang, Huanfeng; Chen, Huoji; Wang, Azhong; Liu, Xiaohang published an article.Synthetic Route of 34413-35-9 The title of the article was Palladium-catalyzed acetoxylation of sp3 C-H bonds using molecular oxygen. And the article contained the following:

Mol. oxygen as oxidant to promote palladium-catalyzed acetoxylation of sp3 C-H bonds to afford α-oxygenated products is reported. The experimental process involved the reaction of 5,6,7,8-Tetrahydroquinoxaline(cas: 34413-35-9).Synthetic Route of 34413-35-9

The Article related to palladium catalyzed acetoxylation mol oxygen, Physical Organic Chemistry: Oxidation-Reduction, Including Dehydrogenation and Hydrogenolysis and other aspects.Synthetic Route of 34413-35-9

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider