Category: 610-09-3

Nogami, Chika; Sawada, Hirokazu published the article 《Positional and geometrical anionic isomer separations by capillary electrophoresis-electrospray ionization-mass spectrometry》. Keywords: capillary electrophoresis MS positional geometrical anionic isomer separation; electrospray ionization mass spectrometry positional geometrical anionic isomer electrophoresis.They researched the compound: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ).Safety of cis-Cyclohexane-1,2-dicarboxylic acid. 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:610-09-3) here.

Capillary electrophoresis-electrospray ionization-mass spectrometry (CE-ESI-MS) was applied to the anal. of polar positional and geometrical anionic isomers. Since the studied positional and geometrical anionic isomers have different pKa values, they could be separated by CE-ESI-MS under simple anal. conditions using a bare fused-silica capillary and volatile ammonium acetate buffer after optimizing buffer pH. Ortho-, meta-, para-hydroxybenzoate positional isomers were completely separated on a fused-silica capillary with 20 mM ammonium acetate buffer at pH 10.0, and cis-, trans-cyclohexane dicarboxylate geometrical isomers could be also separated with 20 mM ammonium acetate buffer at pH 4.0. Several anal. parameters affecting ESI-MS sensitivity were also studied. Both running buffer pH and sheath liquid pH had significant effects on the selectivity and the sensitivity on CE-ESI-MS anal. while sheath flow rate and other parameters had little influence. Under optimized conditions, linearity, detection limit, and repeatability of the anal. of hydroxybenzoate isomers were examined, and good results were obtained. The method presented in this paper is a simple, robust, and cost-effective method for simultaneous anal. of positional and geometrical anionic isomers and of other small anionic compounds

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《The configuration of polymethylenedicarboxylic acids. I. The dissociation constants of the cyclohexanedicarboxylic acids》. Authors are Kuhn, Richard; Wassermann, Albert.The article about the compound:cis-Cyclohexane-1,2-dicarboxylic acidcas:610-09-3,SMILESS:O=C([C@H]1[C@@H](C(O)=O)CCCC1)O).Computed Properties of C8H12O4. Through the article, more information about this compound (cas:610-09-3) is conveyed.

The 1st and 2nd dissociation constants for the cyclohexanedicarboxylic acids in water and in 50% MeOH are given as follows (-log K, -log K2 and K1/K2, resp.): In H2O: o-cis, 4.34 (19°), 6.76 (19°), 267; o-trans, 4.18 (18°), 5.93 (19°), 56; m-cis, 4.10 (16°), 5.46 (16°), 23; m-trans, 4.31 (19°), 5.73 (19°), 26; p-cis, 4.44 (20°), 5.79 (19°), 22; p-trans, 4.18 (16°), 5.42 (19°), 17. In 50% MeOH: o-cis, 5.26 (18°), 8.20 (18°), 885; o-trans, 5.38 (18°), 7.31 (18°), 85; m-cis, 5.25 (17°), 6.83 (17°), 38; m-trans, 5.48 (19°), 7.40 (19°), 83; p-cis, 5.59 (19°), 7.15 (19°), 36; p-trans, 5.32 (18°), 6.81 18°), 30. The configurations of the various isomeric forms of the hexahydrophthalic acids are graphically presented.

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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: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ) is researched.Electric Literature of C8H12O4.Salakhov, M. S.; Israfilov, A. I.; Shamilov, T. O. published the article 《Stereochemistry of cyclic dicarboxylic acids studies by potentiometric titration. IV. Effect of the composition and dielectric constant of acetone-water solutions on the ionization constants of cis- and trans-1,2-dicarboxylic acids》 about this compound( cas:610-09-3 ) in Azerbaidzhanskii Khimicheskii Zhurnal. Keywords: cyclic acid ionization configuration. Let’s learn more about this compound (cas:610-09-3).

Ionization constants of cis and trans isomers of 1,2-cyclohexanedicarboxylic acid, 4-cyclohexene-1,2-dicarboxylic acid, 1-methyl-4-cyclohexene-1,2-dicarboxylic acid, 5-norbornene-2,3-dicarboxylic acid, and 1,2,3,4,9,9-hexachloro-1,4,4a,5,6,7,8,8a-octahydro-1,4-methanonaphthalene-2,3-dicarboxylic acid, cis-3-methyl-4-cyclohexene-1,2-dicarboxylic acid, and cis-4,5-dimethyl-4-cyclohexene-1,2-dicarboxylic acid were determined and correlated with configuration and solvent composition

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Recommanded Product: cis-Cyclohexane-1,2-dicarboxylic acid. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Construction of coordination frameworks based on 4-imidazolyl tecton 1,4-di(1H-imidazol-4-yl)benzene and varied carboxylic acids. Author is Chen, Shui-Sheng; Zhao, Yue; Fan, Jian; Okamura, Taka-aki; Bai, Zheng-Shuai; Chen, Zhi-Hao; Sun, Wei-Yin.

Nine new coordination polymers [Mn(L)(OX)] (1), [Zn(L)(MBDC)] (2), [Zn(L)(BPDA)] (3), [Co3(L)2(BTA)2]·2H2O (4), [Co2(L)2(BTCA)]·2H2O (5), [Ni(L)(e,a-cis-1,2-CHDC)]·2H2O (6), [Co(L)(e,a-cis-1,4-CHDC)] (7), [Co(L)(e,e-trans-1,4-CHDC)]·2H2O (8) and [Co(L)(e,e,e-cis-1,3,5-HCHTC)]·0.45H2O (9) were obtained by reactions of varied metal salts with 1,4-di(1H-imidazol-4-yl)benzene (L) in the presence of corresponding auxiliary ligands of oxalic acid (H2OX), 5-methyl-1,3-benzenedicarboxylic acid (H2MBDC), 4,4′-biphenyldicarboxylic acid (H2BPDA), benzene-1,3,5-triacetic acid (H3BTA), 1,2,4,5-benzenetetracarboxylic acid (H4BTCA), cis-1,2-cyclohexanedicarboxylic acid (cis-1,2-H2CHDC), cis-/trans-1,4-cyclohexanedicarboxylic acid (cis-/trans-1,4-H2CHDC) and cis-1,3,5-cyclohexane tricarboxylic acid (cis-1,3,5-H3CHTC), resp. Complex 1 has a one-dimensional (1D) chain structure and 2 has a two-dimensional (2D) network with 63-hcb topol. Complex 3 is a complicated uninodal 4-connected three-dimensional (3D) net with Point (Schlaefli) symbol (4.6.83·10)(4.63·82)(63·103)(64·82) while 4 is a (3,8)-connected tfz-d 3D net with Point (Schlaefli) symbol (43)2(46·618·84) based on the trinuclear Co(II) secondary building units (SBUs). Complex 5 is a 3-fold interpenetrating mog net with Point (Schlaefli) symbol of (4.64·8)2(42·62·82), while 6 is a 2D net with (4,4) topol. based on binuclear SBUs. In contrast to the 2D network of 7 with e,a-cis-1,4-CHDC2-, 8 with e,e-trans-1,4-CHDC2- is a 5-fold interpenetrating 66-dia 3D net. Complex 9 has a 1D ladder-like chain structure with a stable conformation from the e,e,e-cis-1,3,5-HCHTC2- ligand. Complexes 2 and 3 exhibit intense light blue emission in the solid state at room temperature and the results of magnetic measurements showed that there are antiferromagnetic interactions in 1.

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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 Studies on Cycloalkane-Based Bisamide Organogelators: A New Example of Stochastic Chiral Symmetry-Breaking Induced by Sonication, the main research direction is cycloalkane based bisamide organogelator stochastic chiral symmetry breaking sonication; chirality; cycloalkane bisamides; physical asymmetric-induction; self-assembly; symmetry breaking; ultrasound.Safety of cis-Cyclohexane-1,2-dicarboxylic acid.

Enantiomerically pure C16-alkyl amides derived from cis and trans cycloalkane-1,2-dicarboxylic acids, resp., have been synthesized and their behavior as organogelators has been investigated. These compounds include cis/trans diastereomeric cyclobutane and cyclohexane derivatives with the aim to explore the influence of the ring size as well as the relative configuration in their hierarchical self-assembly to form gels. High resolution 1H NMR spectroscopy studies allowed the determination of the dynamics of the gelation process in [D8]toluene and the sol-gel transition temperature The morphol. and size of the aggregates have been investigated and results have shown that, in the case of cyclobutane derivatives, the cis/trans stereochem. is not relevant for the gelation behavior and the properties of the soft-materials obtained, but it is remarkable for cyclohexane diamides, which are better organogelators. The four compounds produce chiral aggregates despite that two of them are meso achiral mols. We show herein that this fact is an example of stochastic symmetry breaking induced by sonication. The self-assembly of these mols. has been modelled providing information and support about the structure and the chirality of the aggregates.

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

SDS of cas: 610-09-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Fractal to monolayer growth of AgCl and Ag/AgCl nanoparticles on vanadium oxides (VOx) for visible-light photocatalysis. Author is Sharma, Mukesh; Das, Biraj; Sarmah, Jugal Charan; Hazarika, Anil; Deka, Biplab K.; Park, Young-Bin; Bania, Kusum K..

A facile and simple methodol. was adopted for the trapping of highly crystalline AgCl and Ag/AgCl nanoparticles (NPs) into the interlayer spacings of vanadium oxides (VOx). Self-organization of AgCl and Ag/AgCl-NPs on VOx was found to be governed by the nature of the dicarboxylic acids used during the synthesis of the nanocomposites. A “”fractals-like”” morphol. of the AgCl@VOx nanocomposite was achieved in the presence of cis-1,2 cyclohexanedicarboxylic acid. Heating of the AgCl@VOx nanocomposite above 68 °C resulted in the growth of polydispersed and ultrafine (3-4 nm) Ag/AgCl-NPs and its self-organization into monolayer formation on a partly crystalline VOx matrix. Change in the conformation of the dicarboxylic acid to the trans-isomer resulted in the formation of a ‘rod-like’ structure of Ag/AgCl-NPs on a highly crystalline VOx matrix. The band gaps of the nanocomposites were within the range of 1.8 to 2.9 eV. Because of such a low band gap, the synthesized nanocomposites were found to be highly active toward the photooxidation of methylene (MB) and methyl orange (MO) under sunlight.

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

Recommanded Product: cis-Cyclohexane-1,2-dicarboxylic acid. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Crown Ethers and Their Alkali Metal Ion Complexes as Assembler Groups in Uranyl-Organic Coordination Polymers with cis-1,3-, cis-1,2-, and trans-1,2-Cyclohexanedicarboxylates. Author is Thuery, Pierre; Atoini, Youssef; Harrowfield, Jack.

Alkali metal cations (Na+, K+) and crown ether mols. (12C4, 15C5, 18C6) were used as addnl. reactants during the hydrothermal synthesis of uranyl ion complexes with cis/trans-1,3-, cis-1,2- and trans-1,2-cyclohexanedicarboxylic acids (c/t-1,3-chdcH2, c-1,2-chdcH2, and t-1,2-chdcH2, resp., the latter as racemic or pure (1R,2R) enantiomer). Oxalate anions generated in situ are present in all the six complexes isolated and crystallog. characterized, [(UO2)2(c-1,3-chdc)2(C2O4)][UO2(H2O)5]·(12C4)·2H2O (1), [(UO2)4Na2(c-1,2-chdc)2(C2O4)3(15C5)2] (2), [(UO2)4K2(c-1,2-chdc)2(C2O4)3(18C6)1.5(H2O)1.5] (3), [(UO2)12K5(R-t-1,2-chdc)4(C2O4)10(18C6)5(OH)(H2O)3]·4H2O (4), [(UO2)12K5(rac-t-1,2-chdc)4(C2O4)10(18C6)5(OH)(H2O)3]·4H2O (5), and [(UO2)8K4(rac-t-1,2-chdc)4(C2O4)6(18C6)3(H2O)2] (6). In complex 1, the [UO2(H2O)5]2+ counterions link the ladderlike uranyl-containing one-dimensional polymers and the uncomplexed crown ether mols. through hydrogen bonds. In all the other complexes, two-dimensional uranyl/chdc/oxalate subunits are formed, with topologies depending on the stoichiometry, in which the 1,2-chdc2- ligands are bound to three uranium atoms, one of them chelated by the two carboxylate groups, and the oxalate ligands are bis-chelating. In complex 2, the Na(15C5)+ cations are bound to one layer through double Na-carboxylate or Na-oxo cis-bonding and they are thus mere decorating groups. In contrast, the quasi-planar K(18C6)+ groups in 3-6, partially affected by disorder, are generally trans-coordinated to two uranyl oxo groups pertaining to different layers, thus uniting the latter into a three-dimensional framework.

There is still a lot of research devoted to this compound(SMILES：O=C([C@H]1[C@@H](C(O)=O)CCCC1)O)Recommanded Product: cis-Cyclohexane-1,2-dicarboxylic acid, and with the development of science, more effects of this compound(610-09-3) can be discovered.

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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: 610-09-3, is researched, SMILESS is O=C([C@H]1[C@@H](C(O)=O)CCCC1)O, Molecular C8H12O4Journal, Article, Journal of Chromatography A called Preparative separation of isomeric and stereoisomeric dicarboxylic acids by pH-zone-refining counter-current chromatography, Author is Weisz, Adrian; Idina, Ana; Ben-Ari, Julius; Karni, Miriam; Mandelbaum, Asher; Ito, Yoichiro, the main research direction is dicarboxylic acid isomeric stereoisomer pH zone refining countercurrent chromatog.Product Details of 610-09-3.

This work involves the preparative separation of some isomeric dicarboxylic acids using pH-zone-refining countercurrent chromatog. (CCC), a relatively new preparative technique for the separation of ionizable compounds The paper concentrates especially on the separation of a synthetic mixture of closely related cis and trans pairs of 1-methyl- and 1,3-dimethyl-1,3-cyclohexanedicarboxylic acids. The elution sequence of the isomers is discussed in terms of their relative acidities (pKa values) in solution and gas phase, hydrophobicities, and steric configuration. Two possible explanations are suggested for the mechanism of separation They both involve the amount of retainer acid used, as it affects the separation and plays a role in the chemohydrodynamic equilibrium of the dicarboxylic acids in the column.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ) is researched.Product Details of 610-09-3.Huang, Fu-Ping; Lei, Jing-Bin; Yu, Qing; Bian, He-Dong; Yan, Shi-Ping published the article 《The structural diversity and luminescent properties of Zn(II) coordination assemblies with cyclohexane (or cyclohexene) dicarboxylate anions and two positional isomeric ligands》 about this compound( cas:610-09-3 ) in Polyhedron. Keywords: preparation zinc cyclohexene cyclohexane carboxylate bispyridyltriazole coordination polymer; crystal structure zinc cyclohexene cyclohexane carboxylate bispyridyltriazole coordination polymer; luminescence zinc cyclohexene cyclohexane carboxylate bispyridyltriazole coordination polymer. Let’s learn more about this compound (cas:610-09-3).

Four Zn(II) coordination polymers, {[Zn(chedc)(4,4′-Hbpt)]}n (1), {[Zn3(chadc)2(4,4′-Hbpt)2(4,4′-bpt)2]·3H2O}n (2), {[Zn2(chadc)2(3,3′-Hbpt)]}n (3) and {[Zn2(chedc)2(3,3′-Hbpt)]·H2O}n (4) (chadc = cis-1,2-cyclohexanedicarboxylate anion, chedc = cis-4-cyclohexene-1,2-dicarboxylate anion, 4,4′-Hbpt = 1H-3,5-bis(4-pyridyl)-1,2,4-triazole, 3,3′-Hbpt = 1H-3,5-bis(3-pyridyl)-1,2,4-triazole) were produced by the reaction of two positional isomeric dipyridyl bridging ligands and two dicarboxylate anions with Zn(II) salts under hydrothermal conditions. Structural anal. reveals that 1 exhibits a double-chain and 2 exhibits a 3-dimensional network with a (62.10)2(64.102) topol., while 3 and 4 show similar layer structures. The luminescent properties of these complexes were briefly studied.

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Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Hijji, Yousef; Benjamin, Ellis; Jasinski, Jerry P.; Butcher, Ray J. published the article 《Crystal structure of the thalidomide analog (3aR*,7aS*)-2-(2,6-dioxopiperidin-3-yl)hexahydro-1H-isoindole-1,3(2H)-dione》. Keywords: isoindole thalidomide analog crystal structure; crystal structure; pseudomerohedral twinning; thalidomide analogs.They researched the compound: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ).Recommanded Product: cis-Cyclohexane-1,2-dicarboxylic acid. 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:610-09-3) here.

The title compound, C13H16N2O4, crystallizes in the monoclinic centrosym. space group, P21/c, with four mols. in the asym. unit, thus there is no crystallog. imposed symmetry and it is a racemic mixture The structure consists of a six-membered unsaturated ring bound to a five-membered pyrrolidine-2,5-dione ring N-bound to a six-membered piperidine-2,6-dione ring and thus has the same basic skeleton as thalidomide, except for the six-membered unsaturated ring substituted for the aromatic ring. In the crystal, the mols. are linked into inversion dimers by R22(8) hydrogen bonding involving the N-H group. In addition, there are bifurcated C-H···O interactions involving one of the O atoms on the pyrrolidine-2,5-dione with graph-set notation R12(5). These interactions along with C-H···O interactions involving one of the O atoms on the piperidine-2,6-dione ring link the mols. into a complex three-dimensional array. There is pseudomerohedral twinning present which results from a 180° rotation about the [100] reciprocal lattice direction and with a twin law of 1 0 0 0 [inline formula omitted] 0 0 0 [inline formula omitted] [BASF 0.044 (1)].

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