Category: 143-15-7

Doig, Adrian I. published the artcileSynthesis, Catalytic GPx-like Activity, and SET Reactions of Conformationally Constrained 2,7-Dialkoxy-Substituted Naphthalene-1,8-peri-diselenides, Product Details of C12H25Br, the publication is ACS Omega (2022), 7(31), 27312-27323, database is CAplus and MEDLINE.

Several 2,7-dialkoxy-substituted naphthalene-1,8-peri-diselenides were prepared and tested for catalytic antioxidant activity in NMR-based assay employing the reduction of hydrogen peroxide with stoichiometric amounts of benzyl thiol. Acidic conditions enhanced their catalytic activity, whereas basic conditions suppressed it. The highest activity was observed with 2,7-bis(triethyleneglycol) derivative These compounds serve as mimetics of the antioxidant selenoenzyme glutathione peroxidase. Studies based on NMR peak-broadening effects and EPR spectroscopy indicated that a thiol-dependent SET reaction occurs under the conditions of assay, which can be reversed by the addition of triethylamine. In contrast, peak broadening induced by proton-catalyzed electron transfer during the treatment of naphthalene-1,8-peri-diselenides with trifluoroacetic acid can be suppressed by the addition of excess thiol. These observations provide new insights into the redox mechanisms of these processes.

ACS Omega published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Product Details of C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wu, Hanqing published the artcileNovel fluorescence liquid crystals with high circularly polarized luminescence based on cholesterol-decorated dicyanodistyrylbenzene, Formula: C12H25Br, the publication is Journal of Molecular Liquids (2022), 118663, database is CAplus.

The sym./asym. cholesterol- decorated dicyanodistyrylbenzene were prepared and the influence of sym./asym. structure on circularly polarized luminescence (CPL) properties was investigated for the first time. Both of them exhibited excellent fluorescence in solution and aggregated states. Their chiroptical properties were influenced greatly by the order degree of mol. stacking in different states. The sym. structure with two chiral units was favorable for better CPL emission than asym. structure with one chiral unit. The highest g_lum value was 1.5 x 10^-2 based on the effective chiral transfer and amplification of orderly liquid-crystalline mol. stacking of sym. cholesterol-decorated dicyanodistyrylbenzene in mesophase.

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C19H34ClN, Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sivakumar, Irla published the artcileRubicene, an Unusual Contorted Core for Discotic Liquid Crystals, Product Details of C12H25Br, the publication is Chemistry – An Asian Journal (2022), 17(8), e202200073, database is CAplus and MEDLINE.

Rubicene, an unusual contorted polycyclic aromatic hydrocarbon, was realized to function as a novel core fragment for discotic liquid crystals. The central π-conjugated motif was prepared from dialkoxyiodobenzene via Sonagashira coupling followed by pentannulation and Scholl cyclodehydrogenation. The synthesized rubicene derivatives were found to be thermally stable and exhibit enantiotropic columnar mesophases. The columnar arrangement of these derivatives has been validated using polarising optical microscopy, differential scanning calorimetry & small-angle X-ray scattering.

Chemistry – An Asian Journal published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C8H7ClO3, Product Details of C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Ukai, Shusaku published the artcileA Supramolecular Polymer Constituted of Antiaromatic Ni^II Norcorroles, Application In Synthesis of 143-15-7, the publication is Angewandte Chemie, International Edition (2022), 61(6), e202114230, database is CAplus and MEDLINE.

For the creation of next-generation organic electronic materials, the integration of π-systems has recently become a central theme. Such functional materials can be assembled by supramol. polymerization when aromatic π-systems are used as monomers, and the properties of the resulting supramol. polymer strongly depend on the electronic structure of the monomers. Here, the authors demonstrate the construction of a supramol. polymer consisting of an antiarom. π-system as the monomer. An amide-functionalized Ni^II norcorrole derivative formed a one-dimensional supramol. polymer through π-π stacking and hydrogen-bonding interactions, ensuring the persistency of the conducting pathway against thermal perturbation, which results in higher charge mobility along the tightly bound linear aggregates than that of the aromatic analog composed of Zn^II porphyrins.

Angewandte Chemie, International Edition published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C18H28B2O4, Application In Synthesis of 143-15-7.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Shanker, G. published the artcileNovel green synthetic approach for liquid crystalline materials using multi-component reactions, COA of Formula: C12H25Br, the publication is Journal of Molecular Liquids (2022), 118244, database is CAplus.

Synthesis of disk-shape liquid crystalline materials using multi-component reactions is reported. Two new series, the compounds I (R = n-C_nH_2n+1; n = 6, 7, 8, 10, 11, 12) and II, were synthesized by coupling either 2,3-dihydroxynaphthalene or 2,6-dihydroxynaphthalene with the corresponding 3,4,5-tris(alkoxy)anilines under solvent-free conditions. The mol. structures of the new materials were confirmed using ¹H NMR, ¹³C NMR and CHN elemental anal. The phase behavior was investigated using polarizing optical microscope and differential scanning calorimetry experiments All the materials exhibited room temperature discotic nematic phase during the cooling cycles as confirmed by X-ray diffraction studies. This synthetic approach provides multiple advantages such as high atom economy, short reaction time, mild reaction condition, simple workup, and do not require column chromatog. purification

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C6H8O6, COA of Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Wang, Zhixia published the artcileThe synthesis of quaternary N-alkyl tropinium cationic surfactants and study on their properties: effect of temperature, hydrophobic chain length and anions, SDS of cas: 143-15-7, the publication is Journal of Molecular Structure (2022), 133732, database is CAplus.

Quaternary N-alkyl tropinium cationic surfactants (TILS) were synthesized and characterized. The effect of temperature, hydrophobic chain length and anions on their properties were studied. By changing the structure of anion, the krafft point was significantly reduced (from 313.15 K to <273.15 K) and wide temperature window was obtained. The critical micelle concentration (CMC) value of TILS based on elec. conductivity method is decreased ∼4-5 times by increasing hydrophobicity of anions. At lower temperature and longer hydrophobic chain, TILS had lower CMC value and better surface activity. The thermodn. properties of micellization Gibbs free energy ΔG_mic, enthalpy ΔH_mic and entropy TΔS_mic of micelles were obtained by Mass action model. The micellization process of the TILS was spontaneous and more stable with the increase of anionic hydrophobicity. With the increase of hydrophobic side chain length, the driving force of surfactant micellization may be enthalpy driven at higher temperature and entropy driven at lower temperature The micro-environment of TILS solution with different concentrations was studied by UV spectrophotometry with curcumin as a probe and the change of micro-environment was used to determine the CMC of TILS. The CMC values were similar obtained by 2 methods.

Journal of Molecular Structure published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H20O6, SDS of cas: 143-15-7.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zin, Nor Farah Hani Md published the artcileCytotoxicity of asymmetric mononuclear silver(I)-N-heterocyclic carbene complexes against human cervical cancer: Synthesis, crystal structure, DFT calculations and effect of substituents, Synthetic Route of 143-15-7, the publication is Journal of Organometallic Chemistry (2022), 122439, database is CAplus.

A new series of asym. N,N’-disubstituted benzimidazolium derived N-heterocyclic carbene (NHC) ligands and their mononuclear silver(I)-NHC complexes are reported. The ligands were prepared from N-alkylation of 1-methylbenzimidazole with alkyl bromides (n = 10-18 in even parity), non-fluorinated or fluorinated benzyl bromides. In situ deprotonation of the ligands with silver oxide, followed by metathesis reaction with potassium hexafluorophosphate facilitated the formation of the mononuclear silver(I)-NHC complexes. Chem. structures of all the compounds were elucidated using Fourier transform IR, ¹H and ¹³C NMR (NMR) spectroscopy, and CHN elemental microanal. The coordination mode of the Ag(I)-NHC complexes was confirmed by single crystal XRD anal. Single crystal anal. of ortho-fluorinated benzyl-containing complex showed that each complex consisted of one Ag(I) ion coordinated with two NHC ligands in a linear geometry in the presence of one PF^–₆ anion in the lattice. Cytotoxic effects of the NHC ligands and their silver(I) complexes against human cervical cancer cells (HeLa) and normal human skin fibroblasts (Hs27) were investigated using the MTT assay. Cytotoxicity of these compounds was dependent on the N-substituents in the benzimidazolium moiety and the presence of silver ions. Benzylated ligands were non-active while their dialkylated analogs showed weak to excellent cytotoxic effects on HeLa cells. The incorporation of silver ions and elongation of alkyl chains significantly enhanced cytotoxicity. D. functional theory revealed that Ag-C bond strength was insensitive to the NHC ligand design, and about one-third of the overall complex binding enthalpy was contributed by the non-covalent interaction between the long alkyl chains. Long-chain ligands (n = 16-18) and all silver(I)-NHC complexes exhibited superior cytotoxicity against HeLa cells (IC₅₀ ranged between 1.18μM-9.38μM) as compared to that of the anticancer drug, Etoposide (IC₅₀ = 25.67μM).

Journal of Organometallic Chemistry published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C13H19Br2ClN2O, Synthetic Route of 143-15-7.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Okuda, Shogo published the artcileSupramolecular Helical Assemblies of Dirhodium(II) Paddlewheels with 1,4-Diazabicyclo[2.2.2]octane: A Remarkable Substituent Effect on the Helical Sense Preference and Amplification of the Helical Handedness Excess of Metallo-Supramolecular Helical Polymers, Product Details of C12H25Br, the publication is Journal of the American Chemical Society (2022), 144(6), 2775-2792, database is CAplus and MEDLINE.

Authors report unique coordination-driven supramol. helical assemblies of a series of dirhodium(II) tetracarboxylate paddlewheels bearing chiral Ph or Me substituted amide-bound m-terphenyl residues with triethylene glycol monomethyl ether (TEG) or n-dodecyl tails through a 1:1 complexation with 1,4-diazabicyclo[2.2.2]octane (DABCO). The chiral dirhodiums with DABCO in CHCl₃/n-hexane (1/1) form one-handed helical coordination polymers with a controlled propeller chirality at the m-terphenyl groups stabilized by intermol. hydrogen-bonding networks between the adjacent amide groups at the periphery mainly via a cooperative nucleation/elongation mechanism as supported by CD and vibrational CD along with variable-temperature (VT) absorption and CD anal. The VT visible-absorption titrations revealed the temperature-dependent changes in the degree of polymerizations The columnar supramol. helical structures were elucidated by x-ray diffraction and at. force microscopy. The helix-sense of the homopolymer carrying the bulky Ph and n-dodecyl substituents is opposite to those of other chiral homopolymers despite the same absolute configuration at the pendants. A remarkably strong “sergeants and soldiers” (S&S) effect was observed in most of the chiral/achiral copolymers, while the copolymers with the chiral bulky phenyl-substituted dirhodiums with n-dodecyl chains displayed an “abnormal” S&S effect accompanied by inversion of the helix-sense, which can be switched to a “normal” S&S effect by changing the solvent composition A nonracemic dirhodium complex of 20% enantiomeric excess bearing the less bulky chiral Me substituents with n-dodecyl chains assembled with DABCO to form an almost one-handed helix (the “majority rule” (MR) effect), whereas the three other nonracemic copolymers showed a weak MR effect.

Journal of the American Chemical Society published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Product Details of C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhang, Ying-peng published the artcileA chalcone organic gel for oil spill recovery and wastewater treatment, Formula: C12H25Br, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2022), 128166, database is CAplus.

Oil spillage and water pollution are serious environmental disasters, which have a serious impact on the economy and ecosystem. To protect the environment,we have synthesized a new type of chalcone derivative (G1) gel. G1 can form gels in many organic solvents, fuels and edible oils. The FT-IR, SEM and XRD studies show that there are π-π stacking, Van der Waals and intermol. H-bonding force in the G1 gel self-assembly process. 3D networks structure provides a strong basis for the adsorption of dyes and the adsorption efficiency could be as high as 97.2%. The G1 can selectively gel in organic water pollutants, with recyclability. Even in the presence of salt, acid and alkali, it can be successfully used to recover spilled oil from oil-water mixture

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C10H11N3O3S, Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Katariya, Kanubhai D. published the artcileCoumarin Schiff base-esters liquid crystals with symmetrical and unsymmetrical alkoxy chains: synthesis, mesomorphic properties and DFT approach, COA of Formula: C12H25Br, the publication is Journal of Molecular Liquids (2022), 119073, database is CAplus.

Herein, two series of coumarin Schiff base-esters liquid crystals I (R¹ = R² = Et, n-Pr, n-octadecyl, etc.) and I (R¹ = Et, n-Pr, n-octadecyl, etc.; R² = n-dodecyl) were prepared Both series were studied for their mesomorphic behavior using differential scanning calorimetry (DSC) for the phase transitions and polarized optical microscopy (POM) to identify the type of mesophase. On varying the alkyl chain length at the both end of mols. systematically in the series I (R¹ = R²), compounds of chain lengths 2-7 exhibited an enantiotropic nematic (N) phase whereas I (R¹ = R² = n-octyl) exhibited enantiotropic smectic C (SmC) phase in addition to enantiotropic nematic phase. Compounds of the sym. series I (R¹ = R² = n-decyl, n-dodecyl, n-tetradecyl, n-hexadecyl, n-octadecyl) showed enantiotropic SmC phase. In the unsym. series, enantiotropic nematic mesophase was observed for compounds I (R¹ = from Et to n-tetradecyl; R² = n-dodecyl), while enantiotropic SmC mesophase was observed for compounds I (R¹ = from n-hexyl to n-octadecyl; R² = n-dodecyl). The DFT theor. calculations was conducted for both series to understand the mesomorphic behavior of the investigated compounds Moreover, they were compared with similar reported compounds to explain the relationship between the structural parameters and the mesomorphic behavior.

Journal of Molecular Liquids published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, COA of Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary