Flexible application of in synthetic route 23002-78-0

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 23002-78-0, is researched, Molecular C6H7NOS, about The synthesis of 2-(heteroaryl)imidazo[1,2-a]pyridin-3-ols and related compounds, the main research direction is imidazopyridinol; imidazopyrimidine; imidazophthalazine; pyridinamine oxide cyclization bromoacetyl heterocycle.Application In Synthesis of 1-(2-Methylthiazol-4-yl)ethanone.

A reaction between pyridin-2-amine 1-oxides and bromoacetyl heteroaromatic compounds gave the title compounds,e.g., I. The reaction of some 2-aminodiazine 1-oxides with phenacyl bromides was also studied. The imidazo[1,2-a]pyrimidine and imidazo[2,1-a]phthalazine systems were prepared but reaction of pyrazin-2-amine 1-oxide did not give the desired cyclization.

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Can You Really Do Chemisty Experiments About 7661-33-8

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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: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Efficient ligand-free copper-catalyzed N-arylation of amides with aryl halides in water.Formula: C10H10ClNO.

A convenient and efficient protocol has been developed for the cross-coupling of amides and aryl iodides using a ligand-free copper(I) oxide catalyst in water. A variety of amide derivatives afforded the corresponding N-arylated products in moderate to good yields (up to 88%).

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Discovery of 77903-28-7

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COA of Formula: C7H10N2O. 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: 5-Methoxy-4-methylpyridin-3-amine, is researched, Molecular C7H10N2O, CAS is 77903-28-7, about A New Series of Orally Bioavailable Chemokine Receptor 9 (CCR9) Antagonists; Possible Agents for the Treatment of Inflammatory Bowel Disease. Author is Kalindjian, S. Barret; Kadnur, Sanjay V.; Hewson, Christopher A.; Venkateshappa, Chandregowda; Juluri, Suresh; Kristam, Rajendra; Kulkarni, Bheemashankar; Mohammed, Zainuddin; Saxena, Rohit; Viswanadhan, Vellarkad N.; Aiyar, Jayashree; McVey, Donna.

Chemokine receptor 9 (CCR9), a cell surface chemokine receptor which belongs to the G protein-coupled receptor, 7-trans-membrane superfamily, is expressed on lymphocytes in the circulation and is the key chemokine receptor that enables these cells to target the intestine. It has been proposed that CCR9 antagonism represents a means to prevent the aberrant immune response of inflammatory bowel disease in a localized and disease specific manner and one which is accessible to small mol. approaches. One possible reason why clin. studies with vercirnon, a prototype CCR9 antagonist, were not successful may be due to a relatively poor pharmacokinetic (PK) profile for the mol. We wish to describe work aimed at producing new, orally active CCR9 antagonists based on the 1,3-dioxoisoindoline skeleton. This study led to a number of compounds that were potent in the nanomolar range and which, on optimization, resulted in several possible preclin. development candidates with excellent PK properties.

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New learning discoveries about 7661-33-8

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Computed Properties of C10H10ClNO. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Ozonation of tertiary aromatic amines. II. Reactions of N,N-dialkylanilines with diethyl azodicarboxylate and with ozone.

Thermolysis of the adduct I from N-phenylpyrrolidine and EtO2CN:NCO2Et gave the isomeric dimers II, which were also formed by ozonation of N-phenylpyrrolidine. The ozonation of 11 other N,N-dialkylanilines and 22-pyrrolylpyridines was also studied.

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Awesome Chemistry Experiments For 438630-64-9

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 438630-64-9, is researched, SMILESS is ClS(=O)(=O)C1=CNN=C1, Molecular C3H3ClN2O2SJournal, Organic Chemistry Frontiers called A robust and facile method for desulfonation to amines, Author is Li, Chen; Huang, Yilei; Cao, Sheng; Luo, Yunhao; Zhang, Ying; Yang, Guang, the main research direction is amine preparation; aromatic aliphatic sulfonamide desulfonation.Product Details of 438630-64-9.

In this study, a robust and facile method for desulfonation to achieve secondary amines is demonstrated. Diphenylphosphine (Ph2PH) was shown to significantly expedite the cleavage of sulfonamides under basic conditions. Aromatic and aliphatic sulfonamides were cleanly converted, with a rapid reaction time, into the required amines with good to excellent chem. yields. Moreover, the functional groups tested were generally well tolerated.

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The origin of a common compound about 23002-78-0

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-(2-Methylthiazol-4-yl)ethanone(SMILESS: CC(C1=CSC(C)=N1)=O,cas:23002-78-0) is researched.Product Details of 438630-64-9. The article 《Selenium heterocycles. XXXVII. Synthesis of 4-(thiazol-4-yl)-1,2,3-selenadiazoles and 4-(selenazol-4-yl)-1,2,3-selenadiazoles》 in relation to this compound, is published in Journal of Heterocyclic Chemistry. Let’s take a look at the latest research on this compound (cas:23002-78-0).

Starting from readily available 2-substituted-4-formylthiazoles and selenazoles, a series of selenazolylselenadiazoles I (R = e.g. Ph, 4-MeOC6H4, 4-BrC6H4; X = Se) and thiazolylselenadiazoles I (X = S) were prepared Pyrolysis of compound I (X = S) afforded thiazolylacetylenes II. Addition of KOH pellets to an alc. solution of I (X = S) gave diselenafulvenes III. Decomposition of compound I (X = S) with base followed by the addition of CS2 gave thiazolylthioxothiaselenoles IV.

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The influence of catalyst in reaction 1195-58-0

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Dihydropyridines. V. Formation of the isomeric 1,2- and 1,4-dihydro derivatives in the reaction of methylmagnesinm iodide with 3,5-dicyanopyridine and 3,5-dicyano-2-methylpyridine》. Authors are Kuthan, J.; Janeckova, E.; Havel, M..The article about the compound:Pyridine-3,5-dicarbonitrilecas:1195-58-0,SMILESS:N#CC1=CC(C#N)=CN=C1).Quality Control of Pyridine-3,5-dicarbonitrile. Through the article, more information about this compound (cas:1195-58-0) is conveyed.

cf. CA 58, 5626a. MeMgI adds to 3,5-dicyanopyridine (I) to give 3,5-dicyano-2-methyl-1,2-dihydropyridine (II) and 3,5-dicyano-4-methyl-1,4-dihydropyridine (III). Similarly, 3,5-dicyano-2-methylpyridine (IV) forms 3,5-dicyano-2,6-dimethyl-1,2-dihydropyridine (V) and 3,5-dicyano-2,4-dimethyl-1,4-dihydropyridine (VI), resp. Nicotinoyl chloride-HCl (from 500 g. nicotinoic acid and 1400 ml. SOCl2) refluxed 35 hrs. with 500 ml. Br, the mixture evaporated on a steam bath, the residue dissolved in 1 l. absolute EtOH, and the solution heated 30 min. on a steam bath gave 81% HBr salt of Et 5-bromonicotinate, m. 147-7.5° (EtOH), from which 80% Et 5-bromonicotinate (VII), b0.5 86-92°, m. 42°, was obtained by treatment with Na2CO3. VII (50 g.) stirred with 30 g. CuCN in 50 ml. HCONMe2 2 hrs. at 160-75°, the mixt evaporated in vacuo, and the residue shaken with 500 ml. concentrated NH4OH and extracted successively with 800 ml. C6H6 and 200 ml. Et2O gave after evaporation 45% Et 5-cyanonicotinate (VIII), b16 143-5°, m. 89-90° (petr. ether). VIII (50 g.) in 1 l. absolute EtOH saturated with NH3 kept 7 days at room temperature gave 72% 5-cyanonicotinamide (IX), m. 220-1° (H2O, EtOH). A mixture of 14 g. IX and 40 ml. anhydrous C5H5N treated over 15 min. with 9 ml. POCl3, stirred 8 hrs., decomposed with ice, alkalized with NH4OH, and extracted with CHCl3 gave 64% I, m. 113-13.5° (dilute EtOH), sublimed 80-90°/10 mm. K salt of 2-hydroxy-3,5-dicyano-6-methylpyridine (6.07 g.) and 7 g. PCl5 treated with 10 ml. POCl3, and the mixture refluxed 30 min., evaporated in vacuo, decomposed with ice, and extracted with C6H6 gave 35% 3,5-dicyano-2-chloro-6-methylpyridine, m. 143-3.5°, which gave IV, m. 76-7°, on catalytic hydrogenation. Reaction of 1.04 g. I in 70 ml. Et2O with MeMgI (from 0.8 g. Mg, 2 ml. MeI, and 30 ml. Et2O) followed by chromatography on Al2O3 (activity II) gave 512 mg. yellow II, m. 114-15° (C6H6, dilute EtOH), and 240 mg. yellowish III, m. 180.5-81° (dilute EtOH). Similarly, 670 mg. IV with MeMgI (from 0.72 g. Mg, 1.9 ml. MeI, and 25 ml. Et2O) afforded 405 mg. yellow V, m. 152-3° (dilute MeOH), and 138 mg. yellowish VI, m. 129.5-30.5°. Dehydrogenation of II, III, V, and VI by heating with equal amounts 30% Pd-C 20 min. at 200-5° gave IV, 3,5-dicyano-4-methylpyridine, m. 84.5-85°, 3,5-dicyano-2,6-dimethylpyridine, m. 118-18.5°, and 3,5-dicyano-2,4-dimethylpyridine, m. 115-15.5°, resp. Ultraviolet and infrared data for II, III, V, and VI, and of some of the intermediates, are given.

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Application of 1195-58-0

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So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Shook, Brian C.; Chakravarty, Devraj; Barbay, J. Kent; Wang, Aihua; Leonard, Kristi; Alford, Vernon; Powell, Mark T.; Rassnick, Stefanie; Scannevin, Robert H.; Carroll, Karen; Wallace, Nathaniel; Crooke, Jeffrey; Ault, Mark; Lampron, Lisa; Westover, Lori; Rhodes, Kenneth; Jackson, Paul F. researched the compound: Pyridine-3,5-dicarbonitrile( cas:1195-58-0 ).Recommanded Product: 1195-58-0.They published the article 《Substituted thieno[2,3-d]pyrimidines as adenosine A2A receptor antagonists》 about this compound( cas:1195-58-0 ) in Bioorganic & Medicinal Chemistry Letters. Keywords: thienopyrimidine preparation adenosine A2A antagonist. We’ll tell you more about this compound (cas:1195-58-0).

A novel series of benzyl substituted thieno[2,3-d]pyrimidines, e.g. I, were identified as potent A2A receptor antagonists. Several five- and six-membered heterocyclic replacements for the optimized methylfuran were explored. Select compounds effectively reverse catalepsy in mice when dosed orally.

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The effect of the change of synthetic route on the product 7661-33-8

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Tan, Bryan Yong-Hao; Teo, Yong-Chua published the article 《Mild and Efficient Cobalt-Catalyzed Cross-Coupling of Aliphatic Amides and Aryl Iodides in Water》. Keywords: aryl iodide aliphatic amide cross coupling cobalt catalyst water; arylamide flutamide preparation.They researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Related Products of 7661-33-8. 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:7661-33-8) here.

A convenient protocol for the C-N cross-coupling of aliphatic amides and iodobenzene is demonstrated using a simple and inexpensive Co(C2O4)·2H2O/N,N’-dimethylethylenediamine (DMEDA) catalytic system in water. Good yields of N-arylated products I [R1 = Pr, i-Pr, Bu, etc; R2 = Ph, 2-F-C6H4, 4-Me-C6H4, etc.] were isolated (up to 85%) and the protocol has been successfully applied to the synthesis of the anticancer drug, flutamide.

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Chemical Properties and Facts of 1195-58-0

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Name: Pyridine-3,5-dicarbonitrile. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about Sodium cyanoborohydride.

Properties and applications of sodium cyanoborohydride as a selective, mild reducing reagent for reductive aminations of aldehydes and ketones, reductions of imines, iminium ions, oximes and oxime derivatives, hydrazones, enamines, reductive deoxygenation of carbonyls via sulfonyl hydrazones, reductions of aldehydes and ketones, polarized alkenes, alkyl halides, epoxides, acetals and allylic ester groups were reviewed.

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