Tag: M.W:100-200

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Hydroxy-3-phenylpropanenitrile(SMILESS: N#CCC(O)C1=CC=CC=C1,cas:17190-29-3) is researched.Safety of 4-(Piperazin-1-yl)phenol. The article 《Synthetic application of elemento-organic compounds of the 15th and 16th Groups. 92. Novel reaction of dibutyl(cyanomethyl)telluronium chloride with carbonyl compounds mediated by organolithium reagents: highly efficient synthesis of β-hydroxy nitriles》 in relation to this compound, is published in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999). Let’s take a look at the latest research on this compound (cas:17190-29-3).

Dibutyl(cyanomethyl)telluronium chloride, a precursor of stabilized telluronium ylides, after being treated with organolithium reagents reacted with carbonyl compounds to afford β-hydroxy nitriles instead of α,β-unsaturated nitriles in excellent yields. Thus, reaction of Bu2Te+CH2CNCl- with BuLi in THF-hexane followed by treatment with PhCHO and hydrolysis gave 95% PhC(OH)CH2CN.

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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: 3-Hydroxy-3-phenylpropanenitrile, is researched, Molecular C9H9NO, CAS is 17190-29-3, about Iridium-catalyzed efficient reduction of ketones in water with formic acid as a hydride donor at low catalyst loading.Application In Synthesis of 3-Hydroxy-3-phenylpropanenitrile.

A highly efficient and chemoselective transfer hydrogenation of ketones in water has been successfully achieved with our newly developed catalyst. Simple ketones, as well as α- or β-functionalized ketones, are readily reduced. Formic acid is used as a traceless hydride source. At very low catalyst loading (S/C = 10 000 in most cases; S/C = 50 000 or 100 000 in some cases), the iridium catalyst is impressively efficient at reducing ketones in good to excellent yields. The TOF value can be as high as up to 26 000 mol mol-1 h-1. A variety of functional groups are well tolerated, for example, heteroaryl, aryloxy, alkyloxy, halogen, cyano, nitro, ester, especially acidic methylene, phenol and carboxylic acid groups.

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Name: 4-Fluoro-1H-indole-3-carboxylic acid. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-Fluoro-1H-indole-3-carboxylic acid, is researched, Molecular C9H6FNO2, CAS is 23077-42-1, about Improved synthesis of some fluoroindoles. Author is Kalir, Asher; Balderman, D..

2,5-F2-C6-H3NO2 (109 g.) was treated with 155 g. NCCH2CO2Et and 31.6 g. Na in 1000 ml. EtOH for 2 hrs. to give 26% 4-fluoroanthro-xanonitrile, m. 70-1°. 2,4-(O2N)FC6H3Me (155 g.) was refluxed 14 hrs. with 196 g. N-bromosuccinimide in 600 ml. CCl4 and 2 g. benzoyl peroxide and treated directly with pyridine to give 198 g. I (X = 4-F), m. 201-2°, and 37 g. 2,4-(O2N)FC6H3-CHBr2, m. 63-4°. I (X = 5-F and 6-F), m. 189-90°, and 202-4°, resp., were similarly obtained in 64 and 71% yield. I (X = 4-F) was treated with 150 g. p-ONC6H4NMe2.HCl in 1 l. EtOH and 720 ml. 2.5N NaOH at <5° for 1 hr., and then treated with 1.5 l. 6N H2SO4 to give 86 g. 2-O2N X C6H3CHO (II) (where X = 4-F), m. 32-3°, via III (X = 4-F), m. 165-6°. The following compounds were similarly prepared (X, % yield II, m.p. II, % yield III, and m.p. III given): 5-F, 86, 94-5°, 92, 155-6°; 6-F, 95, 62-3°, 96, 151-2°. II (X = 6-F) was treated with MeNO2 to give 76% 2,4-F(O2N)C6H3CH:CHNO2, m. 84°, which was catalytically reduced to 34-63% 4-fluoroindole, m. 29-30°, accompanied by IV, m. 200° (decomposition). The method of K. and S. Szara (1963) was used to prepare V (R, % yield, and m.p. given): CHO, 73, 190-1°; CH:CMeNO2, 81, 191-2°; CH2CHMeNH2, 64, 103-5° (HCl salt m. 240-1°, picrate m. 222-3°). 6-Fluoro-3-(2-nitrovinyl)indole, m. 190-2°, and 6-fluorotryptamine m. 83-4°, were similarly prepared in 68 and 51% yield, resp. V (R = CHO) (3.5 g.) was treated with 6 g. KMnO4 in 120 ml. Me2CO at <40° to give 47% V (R = CO2H), m. 273° (decomposition). 5-Fluoro-3-indolecarboxylic acid, m. 234-6° (decomposition), and 6-fluoro-3-indolecarboxylic acid, m. 242-4° (decomposition), were similarly prepared in 54 and 48% yield, resp. V (R = CH2CHMeNH2) was less active than the 5-fluoro derivative, but more active than the 6-fluoro derivative in the activity cage test on mice. If you want to learn more about this compound(4-Fluoro-1H-indole-3-carboxylic acid)Name: 4-Fluoro-1H-indole-3-carboxylic acid, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(23077-42-1).

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Hydroxy-3-phenylpropanenitrile(SMILESS: N#CCC(O)C1=CC=CC=C1,cas:17190-29-3) is researched.COA of Formula: C5H7Br. The article 《Nucleophilic ring opening of cyclic sulfites – a convenient method for selective functionalization of 1,2-diols》 in relation to this compound, is published in Acta Chemica Scandinavica. Let’s take a look at the latest research on this compound (cas:17190-29-3).

Regioselective nucleophilic ring cleavage of cyclic sulfites I (e.g, R1 = Ph: R2 = H, Me, Ph) with Nu-M+ (e.g., NaN3, sodiodimethylmalonate, Et4N+CN-) afforded R1CHNuCH(OH)R2 in the case of e.g., NaN3, sodiodimethylmalonate, and R1CH(OH)CHNuR2 in the case of Et4N+CN-. Regioselectivity breaks down with Nu- = Cl-.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Pure quadrupole resonance determinations of molecular charge distributions. II. Substituted pyrimidines》. Authors are Hooper, H. O.; Bray, P. J..The article about the compound:2-Amino-4,6-dichloro-5-methylpyrimidinecas:7153-13-1,SMILESS:CC1=C(N=C(N)N=C1Cl)Cl).Name: 2-Amino-4,6-dichloro-5-methylpyrimidine. Through the article, more information about this compound (cas:7153-13-1) is conveyed.

cf. C.A. 52, 7796a. The amount of double-bond character of the C-Cl bond at the 2, 4, and 6 positions was estimated from the Cl pure quadrupole resonance frequencies for the following compounds: 4-amino-6-chloro-2-methylthiopyrimidine, 6-chloro-2,4-dimethoxypyrimidine, 2,4-diamino-6-chloropyrimidine, 4,6-dichloropyrimidine, 2,4-dichloro-6-methylpyrimidine, 2,4-dichloro-5-methylpyrimidine, 2,4-dichloropyrimidine, 2,4,6-trichloropyrimidine, 2,4,5,6-tetrachloropyrimidine, 2-amino-4-chloro-6-methylpyrimidine, 2-amino-4,6-dichloro-5-methylpyrimidine, and 2-amino-5-chloropyrimidine-4-carboxylic acid. If it is assumed that the N’s have a weak inductive effect on adjacent ring positions, the calculated values for the amount of double-bond character agree well with data obtained from experiments with Zeeman splitting techniques applied to pure quadrupole resonance spectra.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-Amino-4,6-dichloro-5-methylpyrimidine(SMILESS: CC1=C(N=C(N)N=C1Cl)Cl,cas:7153-13-1) is researched.Electric Literature of C17H18Cl2N2. The article 《Combining Quantum Mechanical Ligand Conformation Analysis and Protein Modeling to Elucidate GPCR-Ligand Binding Modes》 in relation to this compound, is published in ChemMedChem. Let’s take a look at the latest research on this compound (cas:7153-13-1).

2-Aminopyrimidine ligands with flexible and rigid side chains was synthesized to investigate the role of ligand conformation in H4R ligand binding. The ligand binding conformations and orientations in the H4R binding pocket was elucidated. The combined ligand- and protein-ligand modeling method can be used as a general approach to investigate the binding modes of flexible side chains of ligands with other protein targets.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 3-Hydroxy-3-phenylpropanenitrile( cas:17190-29-3 ) is researched.Category: pyrazoles-derivatives.Kalvoda, Jaroslav; Kaufmann, Heinz published the article 《Cleavage of carbon-carbon double bonds by a novel cycloaddition-cycloreversion sequence》 about this compound( cas:17190-29-3 ) in Journal of the Chemical Society, Chemical Communications. Keywords: cycloaddition dipolar ethoxycarbonylformonitrile alkene; decarboxylation isoxazolinecarboxylate; androstane methylene cycloaddition ethoxycarbonylformonitrile; styrene cycloaddition ethoxycarbonylformonitrile; stilbene cycloaddition ethoxycarbonylformonitrile. Let’s learn more about this compound (cas:17190-29-3).

Carbon-carbon double bonds are cleaved with simultaneous generation of a carbonyl compound and a nitrile by a sequence involving 1,3-dipolar cycloaddition of EtO2CCNO to the alkene, followed by hydrolysis of the 3-ethoxycarbonylisoxazoline, which is formed, to give the free acid, and subsequent thermal decarboxylation. Thus treatment of the 3-methylene steroid I (RR1 = CH2, R2 = Ac) with EtO2CCNO gave 39% spiroisoxazoline II (R = Et, R2 = Ac) which on saponification with KOH-MeOH-H2O at 20° gave the free acid II (R = R2 = H). Subsequent thermal decarboxylation of II (R = R2 = H) at 130° in DMF for 1 hr gave 90-2% hydroxynitrile I (R = OH, R1 = CH2CN, R2 = H). Styrene and stilbene underwent similar reactions.

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Application In Synthesis of 3-Hydroxy-3-phenylpropanenitrile. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 3-Hydroxy-3-phenylpropanenitrile, is researched, Molecular C9H9NO, CAS is 17190-29-3, about Highly regioselective conversion of epoxides to β-hydroxy nitriles with cyanide exchange resin. Author is Tamami, B.; Iranpoor, N.; Rezaei, R..

A simple and regioselective method is described for the efficient conversion of epoxides to β-hydroxy nitriles using Amberlite IRA-400-supported cyanide. The reactions occur in the absence of catalyst and furnish the corresponding β-hydroxy nitriles in high yields.

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Recommanded Product: 17190-29-3. 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: 3-Hydroxy-3-phenylpropanenitrile, is researched, Molecular C9H9NO, CAS is 17190-29-3, about Synthesis and reactivity of open-chain and cyclic 2-cyano zinc and copper organometallics. Author is Majid, Tahir N.; Yeh, Ming Chang P.; Knochel, Paul.

Various open-chain and cyclic β-cyano zinc and copper organometallics, e.g., PrCH(MLn) and I [MLn = ZnI, Cu(CN)ZnI for both, R = H, Me3C, n = 1,0], can be prepared by the reaction of the corresponding organic halides with zinc and subsequent transmetalation with CuCN·2LiCl. They react in fair to good yields with various organic electrophiles (enones, allylic bromides and benzoyl chloride) affording highly functionalized nitriles. High diastereoselectivities have been observed in coupling reactions with the cyclic 2-cyano organocopper derivatives The x-ray structure of cyanoethylzinc iodide is also reported.

There is still a lot of research devoted to this compound(SMILES：N#CCC(O)C1=CC=CC=C1)Recommanded Product: 17190-29-3, and with the development of science, more effects of this compound(17190-29-3) can be discovered.

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Name: 3-Hydroxy-3-phenylpropanenitrile. 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: 3-Hydroxy-3-phenylpropanenitrile, is researched, Molecular C9H9NO, CAS is 17190-29-3, about Additions of anionic nucleophiles to carbonyl compounds: cation and electrophile nature influence on ionic association vs. carbonyl complexation control. Author is Loupy, A.; Roux-Schmitt, M. C.; Seyden-Penne, J..

The mechanism of the addition of anionic nucleophiles to CO compounds was examined by studying the reaction in the presence and absence of cryptand complexing agents. The addition of LiCH2CN to PhCHO in THF (-80°) is controlled by CO complexation [reaction time (r.t.) for >90% yield with [2.1.1]-cryptand is 60 min and is 5 min without cryptand]; the addition of KCH2CN is controlled by ionic association [r.t. for >80% yield with [2.2.2]-cryptand is 30 min and is 150 min without cryptand]. In the reaction of 3-ClC6H4C-HCN Li+ with benzaldehydes, CO complexation prevails with 4-MeOC6H4CHO and ionic association dominates with PhCHO and 4-NCC6H4CHO.

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