Tag: M.W:100-200

Computed Properties of C6H10O3. 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: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Substituted tetrahydrofuroyl-1-phenylalanine derivatives as potent and specific VLA-4 antagonists. Author is Doherty, George A.; Yang, Ginger X.; Borges, Edite; Chang, Linda L.; MacCoss, Malcolm; Tong, Sharon; Kidambi, Usha; Egger, Linda A.; McCauley, Ermenegilda; Van Riper, Gail; Mumford, Richard A.; Schmidt, John A.; Hagmann, William K..

A series of substituted tetrahydrofuroyl-1-phenylalanine derivatives was prepared and evaluated as VLA-4 antagonists. Substitution of the α carbon of the THF with aryl groups increased the specificity for VLA-4 vs. α4β7 while amide substitution increased the potency of the series without increasing the specificity. Substitution of the β carbon of the THF with keto or amino groups slightly improved the specificity for VLA-4 vs. α4β7 but with a significant loss in binding affinity for VLA-4.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Neel temperature enhancement by increasing the in-plane magnetic correlation in layered inorganic-organic hybrid materials, the main research direction is manganese cyclohexane cyclhexene dicarboxylate hybrid material crystal structure magnetism.Formula: C8H12O4.

Three inorganic-organic hybrid compounds, [MnII4(trans-1,2-chdc)4(H2O)]·0.25H2O, [MnII2(cis-1,2-chdc)2] and [MnII3(μ3-OH)2(1,2-chedc)2], were hydrothermally synthesized by controlling the conformation of cyclohexane-1,2-dicarboxylate (chdc) and cyclohex-1-ene-1,2-dicarboxylate (chedc), and characterized by x-ray crystallog. and magnetic measurements. These compounds have different infinite inorganic Mn-O layers with an interesting effect of the in-plane magnetic correlation on the Neel temperature

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Recommanded Product: 610-09-3. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Coordination preference of 1,2-bis((1H-imidazole-1-yl)methyl)benzene and different carboxylate ligands with transition metal ions directed by weak interactions.

Three novel metal-organic complexes, formulated as [Cu2(2-HBA)2(bimb)4] (1), {[Cd(CEDA)(bimb)]·H2O}n (2), and {[Ag2(bimb)2]·(1,4-CDA)·13H2O} (3) (bimb = 1,2-bis((1H-imidazole-1-yl)methyl)benzene; 2-HBA = 2-hydroxybenzoic acid; CEDA = cyclohex-4-ene-1,2-dicarboxylic acid; 1,4-CDA = cyclohexane-1,4-dicarboxylic acid), were synthesized by self-assembly of mixed ligands with Cu(II), Cd(II), and Ag(I) under hydrothermal conditions and characterized by means of single-crystal X-ray diffraction, X-ray powder diffraction, IR spectra, thermogravimetric anal., fluorescence spectra and UV-vis absorption spectra. 1 Is shown as a 0D structure, which is formed by Cu2+, 2-HBA ligands and bimb ligands. 2 Displays a 1D ladder structure, which is built by Cd2+, CEDA ligands and bimb ligands, and it is assembled into 2D structure by hydrogen bonding. 3 Possesses a 0D [Ag(bimb)]2 dimer which is assembled into 3D structure by the Ag-O weak interaction and hydrogen bonding. Interestingly, a rare 13-core water cluster participates in forming the network of 3. The UV-vis spectrum and luminescence properties were also studied and discussed.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: cis-Cyclohexane-1,2-dicarboxylic acid(SMILESS: O=C([C@H]1[C@@H](C(O)=O)CCCC1)O,cas:610-09-3) is researched.Recommanded Product: 610-09-3. The article 《Synthesis and properties of some basic metals and manganese salts of cis-1,2-cyclohexane dicarboxylic acid》 in relation to this compound, is published in Asian Journal of Chemistry. Let’s take a look at the latest research on this compound (cas:610-09-3).

Sodium, potassium, ammonium and manganese salts of cis-1,2-cyclohexanedicarboxylic acid were synthesized. The structural characteristics of these salts were analyzed by thermog. and spectroscopic methods and examined on liver and wheat under the effect of their biol. activities. They can be used as a micro-fertilizer in the fields biol. and agriculture.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Quality Control of 2-Furoic hydrazide. 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: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Water-Soluble Dioxidovanadium(V) Complexes of Aroylhydrazones: DNA/BSA Interactions, Hydrophobicity, and Cell-Selective Anticancer Potential. Author is Sahu, Gurunath; Banerjee, Atanu; Samanta, Rajib; Mohanty, Monalisa; Lima, Sudhir; Tiekink, Edward R. T.; Dinda, Rupam.

Five new anionic aqueous dioxidovanadium(V) complexes, [{VO2L1,2}A(H2O)n]α (1-5), with the aroylhydrazone ligands pyridine-4-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)hydrazide (H2L1) and furan-2-carboxylic acid (3-ethoxy-2-hydroxybenzylidene)hydrazide (H2L2) incorporating different alkali metals (A = Na+, K+, Cs+) as countercation were synthesized and characterized by various physicochem. techniques. The solution-phase stabilities of 1-5 were determined by time-dependent NMR and UV-visible, and also the octanol/water partition coefficients were obtained by spectroscopic techniques. X-ray crystallog. of 2-4 confirmed the presence of vanadium(V) centers coordinated by two cis-oxido-O atoms and the O, N, and O atoms of a dianionic tridentate ligand. To evaluate the biol. behavior, all complexes were screened for their DNA/protein binding propensity through spectroscopic experiments Finally, a cytotoxicity study of 1-5 was performed against colon (HT-29), breast (MCF-7), and cervical (HeLa) cancer cell lines and a noncancerous NIH-3T3 cell line. The cytotoxicity was cell-selective, being more active against HT-29 than against other cells. In addition, the role of hydrophobicity in the cytotoxicity was explained in that an optimal hydrophobicity is essential for high cytotoxicity. Moreover, the results of wound-healing assays indicated antimigration in case of HT-29 cells. Remarkably, 1 with an IC50 value of 5.42 ± 0.15μM showed greater activity in comparison to cisplatin against the HT-29 cell line.

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

Electric Literature of C5H6N2O2. 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: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Facile synthesis of 1,3,4-oxadiazoles via iodine promoted oxidative annulation of methyl-azaheteroarenes and hydrazides.

An oxidative sp3 C-H bond of methyl-azaheteroarenes protocol RCH3 (R = quinolin-2-yl, benzo[f]quinolin-3-yl, pyridin-2-yl, etc.) was reported for the synthesis of 1,3,4-oxadiazoles I (R1 = 2H-1,3-benzodioxol-5-yl, furan-2-yl, prop-1-en-2-yl, etc.) via [4+1] annulation with hydrazides R1C(O)NHNH2. This protocol enables 1,3,4-oxadiazole and quinoline linked diheterocycles I via selective oxidation of sp3 C-H bond of methyl-azaheteroarenes in the presence of I2-DMSO. The reaction has a broad substrate scope and good functional group tolerance for methyl-azaheteroarenes and hydrazides.

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

Computed Properties of C6H10O3. 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: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Electrochemical fluorination of several esters derived from oxolane-2-yl-carboxylic acid, oxolane-2-yl-methanol and oxane-2-yl-methanol.

Electrochem. fluorination (ECF) of ester derivatives of (tetrahydro-2-furanyl)carboxylic acid (I), (tetrahydro-2-furanyl)methanol (II) and (2-oxanyl)methanol (III) were investigated. Perfluoro oxolane carbonyl fluoride was obtained from derivatives of I and II, and perfluoro(oxane-2-yl-carbonyl fluoride) was obtained from derivatives of III as the desired compounds, resp. From the ECF of acetates, perfluoro-spiro-ether derivatives having a dioxolane ring were also obtained as the cyclization product in low yield together with a perfluoro acid fluoride. The structure of these perfluoro-spiro-ether derivatives was confirmed by analyzing the chlorinated products, which were obtained by the reaction with AlCl3.

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about The effects of cis-trans configuration of cyclohexane multi-carboxylic acids on colloidal forces in dispersions: steric, hydrophobic and bridging, the main research direction is configuration effect cyclohexanecarboxylic acid zirconia colloidal force; yield stress pH zirconia cyclohexanecarboxylic acid configuration effect.COA of Formula: C8H12O4.

The effects of cis- and trans-1,2-, trans-1,4-cyclohexanedicarboxylic acid, 95% cis-1,3,5-cyclohexane tricarboxylic acid and cis-1,2,3,4,5,6-cyclohexanehexacarboxylic acid on the yield stress-pH behavior of concentrated ZrO2 dispersions are reported. Adsorbed cis-1,2,3,4,5,6-cyclohexanehexacarboxylic acid imparts predominantly steric interactions. It forms a steric barrier keeping the interacting particles apart. Adsorbed cis- and trans-1,2 increase the maximum yield stress and this was attributed to a hydrophobic force resulting from the part of the cyclohexane ring sticking out into the solution which is devoid of charged or hydrophilic group. Adsorbed trans-1,4 increases the maximum yield stress by ≥3-fold and its configuration favors strong bridging interaction with an adjacent particle. Predominantly, cis-1,3,5 also increases the maximum yield stress but only by 60% at the same additive concentration This was attributed to a smaller degree of bridging.

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

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: 37443-42-8, is researched, SMILESS is O=C(C1OCCC1)OC, Molecular C6H10O3Journal, Journal of the American Chemical Society called Structural effects on rates and equilibriums. XVI. Effect of adjacent unshared electron pairs on ease of carbanion formation, Author is Hine, Jack; Dalsin, Philip D., the main research direction is carbanion formation structure effect.Computed Properties of C6H10O3.

The kinetics of NaOMe catalyzed D exchange of Me cyclopentanecarboxylate, two of its oxa derivatives and their acyclic analogs were studied in MeOD solution At 35° methyl cyclopentanecarboxylate exchanged 13 times as fast as Me α-ethylbutyrate, Me tetrahydro-2-furancarboxylate exchanged four times as fast as Me α-methoxybutyrate, and Me 1,3-dioxolane-2-carboxylate exchanged half as fast as Me dimethoxyacetate. From these results it was concluded that rates of carbanion formation may be decreased by repulsions between the unshared electron pairs of the carbanionic C atom and those of O atoms attached directly to it. Such repulsions may be minimized by appropriate rotation around the C-O bond in acyclic compounds but not as easily in cyclic compounds This electron repulsion effect operates in addition to the electronegativity effect, by which rates of formation of sp2-hybridized carbanions are slowed by highly electroneg. atoms attached directly to the site of carbanion formation. This interpretation of the results is analogous to that required to explain to explain recent observations on rates of pyramidal inversions at N and P.

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

Application of 3326-71-4. 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-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Tin-Mediated One-pot Preparation of β-Trifluoromethyl-β-acylhydrazonyl Carbonyl Compounds. Author is Wang, Ke-Hu; Shi, Baobao; Wang, Yalin; Wang, Jianglong; Huang, Danfeng; Su, Yingpeng; Hu, Yulai.

A concise and efficient protocol for the preparation of β-trifluoromethyl-β-acylhydrazonyl carbonyl compounds was developed from multicomponent one-pot reactions of trifluoroacetaldehyde Me hemiacetal, acylhydrazines and 2-bromocarbonyl compounds in the presence of tin powder. The reactions can be carried out under mild reaction conditions to give the products in good to excellent yields.

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