Category: 98006-90-7

KomReddy, Venugopal; Rillema, D. Paul; Nguyen, Huy; Kadel, Lava published the article 《Synthesis and Characterization of 2-(2-Pyridinyl)pyrazine and 2,2′-Bipyrazine Derivatives》. Keywords: pyridinyl pyrazine bipyrazine preparation; bromopyrazine pyridine tributylstannyl pyrazine bromopyridine Stille coupling.They researched the compound: 2-Bromo-5-methylpyrazine( cas:98006-90-7 ).Quality Control of 2-Bromo-5-methylpyrazine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:98006-90-7) here.

A convenient and high yield preparation of 2-(2-pyridinyl)pyrazine and derivatives of 2,2′-bipyrazine compounds from their derivatives of bromopyrazine using Stille coupling was reported. X-ray structures, elemental anal., 1H, 13C-NMR, and mass spectral data of the compounds were given.

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Tetrahydropyran – Wikipedia,
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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Bromo-5-methylpyrazine, is researched, Molecular C5H5BrN2, CAS is 98006-90-7, about Expedient Synthesis of α-Heteroaryl Piperidines Using a Pd-Catalyzed Suzuki Cross-Coupling-Reduction Sequence.Application In Synthesis of 2-Bromo-5-methylpyrazine.

A method for the modular synthesis of α-heteroaryl piperidines is reported. The two-step procedure consists of an initial Pd-catalyzed Suzuki cross-coupling of the heteroaryl bromide with a boronate ester derived from N-Boc-piperidone, followed by subsequent tetrahydropyridine reduction Using this method, α-heteroaryl piperidine products featuring a broad range of pharmaceutically relevant azine and diazine substitutions have been prepared

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Tetrahydropyran – Wikipedia,
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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Bromo-5-methylpyrazine(SMILESS: CC1=CN=C(Br)C=N1,cas:98006-90-7) is researched.Formula: C15H11NO. The article 《Palladium Catalyzed C-O Coupling of Amino Alcohols for the Synthesis of Aryl Ethers》 in relation to this compound, is published in Advanced Synthesis & Catalysis. Let’s take a look at the latest research on this compound (cas:98006-90-7).

Amine containing aryl ethers are common pharmacophore motifs that continue to emerge from drug discovery efforts. As amino alcs. are readily available building blocks, practical methodologies for incorporating them into more complex structures are highly desirable. We report our efforts to explore the application of Pd-catalyzed C-O coupling methods to the arylation of 1,2- and 1,3-amino alcs. [e.g., 1-bromo-4-(trifluoromethyl)benzene + amino alc. I → II (82%, 68% isolated)]. We established general and reliable conditions, under which we explored the scope and limitations of the transformation. The insights gained have been valuable in employing this methodol. within a fast-moving drug discovery environment, which we anticipate will be of general interest to the synthesis and catalysis communities.

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Reference:
Tetrahydropyran – Wikipedia,
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Related Products of 98006-90-7. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Bromo-5-methylpyrazine, is researched, Molecular C5H5BrN2, CAS is 98006-90-7, about Determination of the Alkylpyrazine Composition of Coffee Using Stable Isotope Dilution-Gas Chromatography-Mass Spectrometry (SIDA-GC-MS). Author is Pickard, Stephanie; Becker, Irina; Merz, Karl-Heinz; Richling, Elke.

A stable isotope dilution anal. based on gas chromatog.-mass spectrometry anal. (SIDA-GC-MS) was developed for the quant. anal. of 12 alkylpyrazines found in com. available coffee samples. These compounds contribute to coffee flavor. The accuracy of this method was tested by analyzing model mixtures of alkylpyrazines. Comparisons of alkylpyrazine-concentrations suggested that water as extraction solvent was superior to dichloromethane. The distribution patterns of alkylpyrazines in different roasted coffees were quite similar. The most abundant alkylpyrazine in each coffee sample was 2-methylpyrazine, followed by 2,6-dimethylpyrazine, 2,5-dimethylpyrazine, 2-ethylpyrazine, 2-ethyl-6-methylpyrazine, 2-ethyl-5-methylpyrazine, and 2,3,5-trimethylpyrazine, resp. Among the alkylpyrazines tested, 2,3-dimethylpyrazine, 2-ethyl-3-methylpyrazine, 2-ethyl-3,6-dimethylpyrazine, and 2-ethyl-3,5-dimethylpyrazine revealed the lowest concentrations in roasted coffee. By the use of isotope dilution anal., the total concentrations of alkylpyrazines in com. available ground coffee ranged between 82.1 and 211.6 mg/kg, resp. Decaffeinated coffee samples were found to contain lower amounts of alkylpyrazines than regular coffee samples by a factor of 0.3-0.7, which might be a result of the decaffeination procedure.

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Cesko-Slovenska Farmacie called Antituberculotics. XXXII. Functional derivatives of 5-methyl-2-pyrazinecarboxylic acid, Author is Vontor, T.; Palat, K.; Oswald, J.; Odlerova, Z., which mentions a compound: 98006-90-7, SMILESS is CC1=CN=C(Br)C=N1, Molecular C5H5BrN2, Synthetic Route of C5H5BrN2.

2,5-Dimethylpiperazine I (R = Me) was oxidized to the oxide followed by acetylation with Ac2O and hydrolysis to give I (R = CH2OH), which was oxidized to I (R = CHO, CO2H). I (R = CO2H) was esterified followed by ammonolysis to give I (R = CONH2)(II). II was also prepared in 3 steps from I (R = OH) via I (R = cyano). II had antitubercular activity against Mycobacterium tuberculosis corresponding to the effect of pyrazinamide.

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Tetrahydropyran – Wikipedia,
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Category: tetrahydropyran. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Bromo-5-methylpyrazine, is researched, Molecular C5H5BrN2, CAS is 98006-90-7, about Palladium Catalyzed C-O Coupling of Amino Alcohols for the Synthesis of Aryl Ethers. Author is Mikus, Malte S.; Sanchez, Carina; Fridrich, Cary; Larrow, Jay F..

Amine containing aryl ethers are common pharmacophore motifs that continue to emerge from drug discovery efforts. As amino alcs. are readily available building blocks, practical methodologies for incorporating them into more complex structures are highly desirable. We report our efforts to explore the application of Pd-catalyzed C-O coupling methods to the arylation of 1,2- and 1,3-amino alcs. [e.g., 1-bromo-4-(trifluoromethyl)benzene + amino alc. I → II (82%, 68% isolated)]. We established general and reliable conditions, under which we explored the scope and limitations of the transformation. The insights gained have been valuable in employing this methodol. within a fast-moving drug discovery environment, which we anticipate will be of general interest to the synthesis and catalysis communities.

In some applications, this compound(98006-90-7)Category: tetrahydropyran is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

HPLC of Formula: 98006-90-7. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 2-Bromo-5-methylpyrazine, is researched, Molecular C5H5BrN2, CAS is 98006-90-7, about Palladium Catalyzed C-O Coupling of Amino Alcohols for the Synthesis of Aryl Ethers. Author is Mikus, Malte S.; Sanchez, Carina; Fridrich, Cary; Larrow, Jay F..

Amine containing aryl ethers are common pharmacophore motifs that continue to emerge from drug discovery efforts. As amino alcs. are readily available building blocks, practical methodologies for incorporating them into more complex structures are highly desirable. We report our efforts to explore the application of Pd-catalyzed C-O coupling methods to the arylation of 1,2- and 1,3-amino alcs. [e.g., 1-bromo-4-(trifluoromethyl)benzene + amino alc. I → II (82%, 68% isolated)]. We established general and reliable conditions, under which we explored the scope and limitations of the transformation. The insights gained have been valuable in employing this methodol. within a fast-moving drug discovery environment, which we anticipate will be of general interest to the synthesis and catalysis communities.

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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Kers, Inger; Macsari, Istvan; Csjernyik, Gabor; Nyloef, Martin; Skogholm, Karin; Sandberg, Lars; Minidis, Alexander; Bueters, Tjerk; Malmborg, Jonas; Eriksson, Anders B.; Lund, Per-Eric; Venyike, Elisabet; Luo, Lei; Nystroem, Jan-Erik; Besidski, Yevgeni published an article about the compound: 2-Bromo-5-methylpyrazine( cas:98006-90-7,SMILESS:CC1=CN=C(Br)C=N1 ).SDS of cas: 98006-90-7. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:98006-90-7) through the article.

The NaV1.7 ion channel is an attractive target for development of potential analgesic drugs based on strong genetic links between mutations in the gene coding for the channel protein and inheritable pain conditions. The (S)-N-chroman-3-ylcarboxamide series was used as a starting point for development of new channel blockers resulting in the phenethyl nicotinamide series I (X = CH, CF, N; R1 = 3-pyridyl, 2-methoxy-5-pyrimidinyl, 5-methoxy-2-pyrazinyl, etc.; R2 = H, Cl, F, Me, etc.; R3 = R4 = H, F; R3 = Me, R4 = H; R5 = F3CCH2CH2O, F3CCH2OCH2, etc.). The structure and activity relationship for this series was established and the metabolic issues of early analogs were addressed by appropriate substitutions. Compound I (X = CH; R1 = 5-methoxy-2-pyrazinyl; R2 = H; R3 = R4 = F; R5 = F3CCH2OCH2) displayed acceptable overall in vitro properties and in vivo rat PK profile.

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Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Bromo-5-methylpyrazine, is researched, Molecular C5H5BrN2, CAS is 98006-90-7, about Phenethyl nicotinamides, a novel class of NaV1.7 channel blockers: Structure and activity relationship.Formula: C5H5BrN2.

The NaV1.7 ion channel is an attractive target for development of potential analgesic drugs based on strong genetic links between mutations in the gene coding for the channel protein and inheritable pain conditions. The (S)-N-chroman-3-ylcarboxamide series was used as a starting point for development of new channel blockers resulting in the phenethyl nicotinamide series I (X = CH, CF, N; R1 = 3-pyridyl, 2-methoxy-5-pyrimidinyl, 5-methoxy-2-pyrazinyl, etc.; R2 = H, Cl, F, Me, etc.; R3 = R4 = H, F; R3 = Me, R4 = H; R5 = F3CCH2CH2O, F3CCH2OCH2, etc.). The structure and activity relationship for this series was established and the metabolic issues of early analogs were addressed by appropriate substitutions. Compound I (X = CH; R1 = 5-methoxy-2-pyrazinyl; R2 = H; R3 = R4 = F; R5 = F3CCH2OCH2) displayed acceptable overall in vitro properties and in vivo rat PK profile.

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Tetrahydropyran – Wikipedia,
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Hesp, Kevin D.; Fernando, Dilinie P.; Jiao, Wenhua; Londregan, Allyn T. published the article 《Expedient Synthesis of α-Heteroaryl Piperidines Using a Pd-Catalyzed Suzuki Cross-Coupling-Reduction Sequence》. Keywords: piperidine heteroaryl preparation; heteroaryl bromide Suzuki boronate ester reduction palladium catalyst.They researched the compound: 2-Bromo-5-methylpyrazine( cas:98006-90-7 ).Name: 2-Bromo-5-methylpyrazine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:98006-90-7) here.

A method for the modular synthesis of α-heteroaryl piperidines is reported. The two-step procedure consists of an initial Pd-catalyzed Suzuki cross-coupling of the heteroaryl bromide with a boronate ester derived from N-Boc-piperidone, followed by subsequent tetrahydropyridine reduction Using this method, α-heteroaryl piperidine products featuring a broad range of pharmaceutically relevant azine and diazine substitutions have been prepared

If you want to learn more about this compound(2-Bromo-5-methylpyrazine)Name: 2-Bromo-5-methylpyrazine, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(98006-90-7).

Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics