Category: 143-15-7

Lerch, Swantje published the artcileThe Mizoroki-Heck Reaction in Tunable Aryl Alkyl Ionic Liquids, HPLC of Formula: 143-15-7, the publication is European Journal of Organic Chemistry (2022), 2022(6), e202200008, database is CAplus.

Authors report the use of imidazolium based tunable aryl alkyl ionic liquids (TAAILs) as solvents in the Mizoroki-Heck reaction. Different com. available palladium sources, inorganic bases, TAAILs and reaction conditions were tested for the synthesis of trans-stilbene using bromobenzene and styrene. A variety of different stilbene derivatives were synthesized with exclusive formation of the (E)-isomers and isolated yields up to 97%. Author’s were able to optimize the reaction conditions using only 0.25 mol% of Pd(OAc)₂ as the catalyst and a reaction time of 4 h. No addnl. ligands or additives are used in the reaction. The catalytic system using TAAILs achieved higher yields than com. available imidazolium and phosphonium ionic liquids, demonstrating the potential of tailored ionic liquids as a reaction medium for the Mizoroki-Heck reaction.

European Journal of Organic 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 C12H25Br, HPLC of Formula: 143-15-7.

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

El-Tabei, A. S. published the artcileNewly imine-azo dicationic amphiphilic for corrosion and sulfate-reducing bacteria inhibition in petroleum processes: Laboratory and theoretical studies, Formula: C12H25Br, the publication is Applied Surface Science (2022), 151531, database is CAplus.

Oil and gas process faces a large dilemma during the acidizing job. So, dicationic surfactant namely; 1-dodecyl-3-((E)-(4-(((E)-(1-dodecylpyridin-1-ium-4-yl) methylene)amino)-2-hydroxyphenyl) diazenyl)pyridin-1-iumdibromide (SDCAC) was synthesized. Spectroscopic and CHN elemental anal. studies confirmed the SDCAC structure. SDCAC has Surface active properties. The anticorrosion performance of SDCAC for carbon steel (CS) in 1.0 M HCl has been validated gravimetrically and electrochem. accompanied with surface anal. studies. SDCAC enhances the resistance of CS corrosion by 98%. Tafel data classify SDCAC as a hybrid anticorrosive substance. Adsorption of SDCAC is more fitted to the Langmuir adsorption isotherm model. Theor. indexes of SDCAC affirm its tendency toward adsorption. The activity of SDCAC against sulfate reducing bacteria (SRB) has been examined and promising outcomes have been achieved. According to the findings of this investigation, the SDCAC can reduce SRB growth from 10⁷ to10² cell/mL.

Applied Surface Science 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, Formula: C12H25Br.

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

Yu, Changjiang published the artcileSynthesis and Spectral Properties of Aggregation-Induced Emission-Active Push-Pull Chromophores Based On Isoindole Scaffolds, Computed Properties of 143-15-7, the publication is Organic Letters (2022), 24(25), 4557-4562, database is CAplus and MEDLINE.

A new class of tailor-made push-pull isoindole fluorophores has been synthesized through the combination of Suzuki coupling and Knoevenagel reactions. The efficient synthetic strategy rendered the isoindole scaffold as the π-bridge and the isolation spacer and provided dyes bearing various types of electron donors and electron acceptors for manipulating their energy gaps and tuning their absorptions and emissions. Most of the N-alkylated isoindole dyes showed aggregation-induced emission behaviors suitable for bioimaging and nice solid-state emission with maxima up to 851 nm.

Organic Letters 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 C8H16O2, Computed Properties of 143-15-7.

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

Azizov, Ilgar published the artcileStudying droplet retention in porous media by novel microfluidic methods, Synthetic Route of 143-15-7, the publication is Chemical Engineering Science (2022), 248(Part_A), 117152, database is CAplus.

Transport of oil drops through porous media is an important topic in the oil and gas industry. Oil drops that are present in produced water contribute to injectivity decline during re-injection due to retention in pores. In the literature, the retention phenomenon is typically studied by means of core/packed bed flooding, which struggles to provide a simple and inexpensive way to visualize retention events at the pore scale. This paper demonstrates a microfluidic method for studying the transport of dilute oil-in-water emulsions through porous media. The method allows identification of every single retention event at the capillary level and quant. anal. of the spatial distribution of the retained drops over pore volumes injected. Experiments were carried out for monodisperse and tailored polydisperse emulsions. Moreover, several drop sizes, flow rates, and dispersed phase concentrations were tested. The results showed that the drop size has a dramatic effect on the pore clogging. Drops that are larger than pore throats underwent complete retention, while drops that are smaller than pore throats showed little to no retention in the monodisperse emulsion experiments Addnl., the experiments with polydisperse emulsions showed that the larger drops are facilitators for the retention of the smaller drops, and the latter are unlikely to experience significant retention independently of the former. The flow rates affected flow re-entry mechanisms of the larger drops, while for the smaller drops it affected only the number of retention events. It was identified that dispersed phase concentration has a significant effect in experiments with limited pore volumes injected. At low concentration, the obtained statistical sample was not sufficiently large to unravel the trends. The developed method presents a solid foundation for further experiments and developments in microfluidic studies of the emulsion transport.

Chemical Engineering Science 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, Synthetic Route of 143-15-7.

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

El-Tabei, A. S. published the artcileNewly synthesized quaternary ammonium bis-cationic surfactant utilized for mitigation of carbon steel acidic corrosion; theoretical and experimental investigations, Application In Synthesis of 143-15-7, the publication is Journal of Molecular Structure (2022), 133063, database is CAplus.

New quaternary ammonium bis-cationic surfactant namely; 4,4′-(((1Z,5Z)-pentane-1,5-diylidene)bis(azaneylylidene))bis(1-dodecyl-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-1-ium bromide) (QABCS) was synthesized and characterized via various spectral techniques. Surface tension measurements were performed for the investigation of surface-active parameters. QABCS’s effectiveness as a corrosion inhibitor for carbon steel (CS) in 1.0 M HCl was evaluated using a variety of techniques. Inhibition potency progresses via rising QABCS dose while decreases with the temperature increasing. QABCS boosts the impedance of CS corrosion via 94.67% at 1 × 10^-3 M. In addition, QABCS adsorption is consistent with Langmuir dsorption isotherm model. QABCS regards a mixed-type inhibitor. The explanation of d.-functional theory (DFT) and Monte Carlo (MC) findings shows that the QABCS compound has a high adsorption potential on CS surface due to active centers in the QABCS’ mol. structure. According to the scanning electron microscope (SEM) and at. force microscope (AFM) findings, QABCS creates a shielding layer over carbon steel substrate. Theor. discussions, as well as SEM and AFM findings, are compatible with laboratory corrosion assessment studies.

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 C12H25Br, Application In Synthesis of 143-15-7.

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

Belthle, Thomke published the artcileNanostructuring the Interior of Stimuli-Responsive Microgels by N-Vinylimidazoles Quaternized with Hydrophobic Alkyl Chains, COA of Formula: C12H25Br, the publication is Macromolecules (Washington, DC, United States) (2022), 55(3), 844-861, database is CAplus.

The functionality of stimuli-responsive microgels can be tailor-made by manipulating their internal nanostructure induced by the chem. composition and morphol. of the polymer network. Microgels with phase-separated domains on a nanoscopic length scale were synthesized by copolymerization of N-vinylcaprolactam (VCL) and amphiphilic-to-hydrophobic 1-vinyl-3-alkylimidazolium (VIM⁺C_nH_2n+1) bromides (Br^–) of different alkyl chain lengths (n = 12, 14, 16) as comonomers. These quaternized imidazoles provide dual functionality for immobilization of payload by electrostatic and hydrophobic interactions. The morphologies and properties of synthesized poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels with 10 mol % comonomer were investigated systematically by ¹H and ¹³C high-resolution NMR spectroscopy and relaxometry. Chem. side-selective information about the monomers’ volume-phase transition temperatures, width of transition, and change in transition entropy was reported and correlated to the alkyl chain length of the VIM⁺C_nH_2n+1Br^– comonomer. ¹³C NMR spectroscopy reveals the existence of trans and gauche conformers of alkyl chains, which depends on the alkyl chain length and temperature Morphologies and dynamic contrasts of alkyl chain domains and VCL moieties of poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels were investigated by ¹H transverse magnetization relaxation (T₂-relaxation). Finally, the microgels were successfully applied in the uptake of the hydrophobic dye Nile red, proving their ability to solubilize hydrophobic substances. In addition, the poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels were utilized in electrostatic interactions, as well as simultaneous addition of hydrophobic and neg. charged payload as a proof of concept for dual functionality. This investigation will allow for a better understanding of the internal nanophase structure of complex poly(N-vinylcaprolactam) (PVCL)-based microgels comprising pH-independent pos. charges, as well as hydrophobic compartments, which have potential application as dual-functional delivery systems.

Macromolecules (Washington, DC, United States) 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

Tsagdi, A. published the artcileBlend membranes based on N1-alkyl-substituted imidazolium functionalized polymers and aromatic polyethers: influence of N1-alkyl substituent on properties and alkaline stability, Category: bromides-buliding-blocks, the publication is Polymer Bulletin (Heidelberg, Germany) (2022), 79(3), 1647-1668, database is CAplus.

N1-alkyl (octyl and dodecyl)-substituted imidazolium-based PVBC homopolymers have been synthesized via N-quaternization reaction of N1-alkyl imidazole and PVBC precursor homopolymer bearing reactive benzyl chloride moieties. Due to their poor film forming properties and water solubility, these homopolymers were blended with aromatic polyethers bearing main chain pyridine units at different compositions in order to study the effect of alkyl chain length on morphol., water uptake, swelling ability and chem. stability of the prepared membranes. The B2 blend membrane with the highest N1-dodecyl-substituted imidazolium PVBC content (65 wt%) exhibited the highest water uptake (54%) despite its lower IEC value compared to the corresponding one containing N1-octyl-substituted imidazolium PVBC, low swelling ratio and a phase separated morphol. Evaluation of the chem. stability in 3.6 M KOH solution at 80°C for 7 days revealed the degradation of imidazolium via ring opening, as evidenced by ATR-FT-IR spectroscopy. Therefore, new blends having as second constituent, the N1-alkyl-substituted imidazolium functionalized poly(PVBC-co-AA₂₀) copolymers containing acrylic acid units were fabricated targeting to the improvement of chem. stability via ionic cross linking. The prepared D1 and D2 blend membranes containing 60 and 65 wt% dodecyl-imidazolium functionalized poly(PVBC-co-AA₂₀) copolymer content, resp., were flexible, exhibited moderate IECs (1.47-1.60 meq/g) and sufficient water uptakes (up to 30%). D2 blend membrane showed excellent chem. stability after testing in 3.6 M KOH solution at 80°C for 30 days, as confirmed by ATR-FT-IR spectroscopy and TGA anal. The excellent chem. stability can probably be attributed to the steric hindrance effect of N1 dodecyl substituent which effectively protects the C2 position of imidazolium from hydroxide attack as well as to the formation of a dense, ionic crosslinked structure that hinders hydroxide penetration.

Polymer Bulletin (Heidelberg, Germany) 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 C6H12O2, Category: bromides-buliding-blocks.

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

Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 143-15-7, Name is 1-Bromododecane. In a document, author is Rezaeivala, Majid, introducing its new discovery. SDS of cas: 143-15-7.

Synthesis, characterization, and cytotoxic activity studies of new N4O complexes derived from 2-({3-[2-morpholinoethylamino]-N3-([pyridine-2-yl]methyl) propylimino} methyl)phenol

A new unsymmetrical five-coordinate Schiff base ligand (HL) with an N4O donor set (2) has been prepared by condensation of N1-(2-morpholinoethyl)-N1-([pyridine-2-yl]methyl)propane-1,3-diamine with 2-hydroxy-benzaldehyde. Metal complexes [ML](n+) (M = Zn2+, Cd2+, Mn2+, Cu2+, Ni2+, Ag+, Fe3+, and Co2+ (3-10) were synthesized by the reaction of the ligand and metal salts in ethanol. The resulting products were characterized by elemental analyses, infrared, H-1 and C-13 nuclear magnetic resonance spectra (in the case of Cd and Zn complexes), UV-Vis, electrospray ionization-mass spectrometric, and conductivity measurements. The structure of the complexes [ZnL](ClO4) (3), [CdL](ClO4) (4), and [CuL](ClO4) (7) has been determined by single-crystal X-ray diffraction analysis. The metal complexes were determined to have a distorted trigonal bipyramidal (Zn and Cd) or a distorted square pyramidal (Cu) geometry. The cytotoxic potential of each compound (1-10) against MCF-7 and MDA-MB-231 (breast cancer cells), PC-3 (prostate cancer cells), and WI-38 human normal lung fibroblast cells was evaluated using the MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assay. Compounds 1, 2, and 10 did not display any activity toward any cell line tested. None of the compounds except compound 8 was cytotoxic toward PC-3. Compounds 4 and 8 showed the highest cytotoxic activity against the MCF-7 and MDA-MB-231 cell lines. Because compounds 3, 6, and 9 have similar half-maximal inhibitory concentration values against cancer cells and normal cells, these compounds displayed poor selectivity between cancer and normal cells. More importantly, it was observed that compound 5 acts differently toward different types of cell lines. For example, it displays lower cytotoxicity against the WI-38 normal cell line than it does against the MDA-MB-231 cell line.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 143-15-7 help many people in the next few years. SDS of cas: 143-15-7.

Chemistry is an experimental science, HPLC of Formula: C12H25Br, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 143-15-7, Name is 1-Bromododecane, molecular formula is C12H25Br, belongs to bromides-buliding-blocks compound. In a document, author is Pal, Amalendu.

Mixed micellization behaviour of tri-substituted surface active ionic liquid and cationic surfactant in aqueous medium and salt solution: Experimental and theoretical study

The aim of the present study is to investigate the mixed micellization behaviour of trisubstituted surface active ionic liquid (SAIL) 1-tetradecyl-2,3-dimethylimidazolium bromide [C(14)bmim][Br] and cationic surfactant cetyltrimethylammonium bromide ((TAB) in aqueous solution and in the presence of inorganic salt, sodium bromide (NaBr) using the conductivity, steady-state fluorescence and H-1 NMR measurements. The degree of counter-ion dissociation (g), critical micelle concentration (cmc), various thermodynamic parameters of micellization (Delta G(m)(0), Delta H-m(0) and Delta S-m(0)) have been evaluated from conductivity measurements. All these parameters show that strong synergistic interactions have been observed in the studied mixed systems in the aqueous medium and the presence of salt promotes the electrostatic interactions that result in lowering of cmc values. The aggregation number (N-agg) of mixed micelle has been ascertained from steady-state fluorescence quenching indicate that the contribution of CTAB was always more than that of SAIL. The results have been analysed on the basis of Rubingh, Clint and Motomura theory. Various mixed micellar parameters such as ideal cmc (cmc*), activity coefficients (f(1) and f(2)), micellar mole fraction of CTAB in mixed and ideal state (X(1)(m)and X-1(ideal)), interaction parameter (beta(m)) and excess Gibbs free energy of micellization (Delta G(ex)) have been calculated at temperatures of (298.15, 308.15 and 318.15) K. Mixed micellar parameters (cmc*, X-1(m), and Delta G(ex)) reveal non-ideal behaviour of the mixed system and magnitude of interaction parameter (beta(m)) becomes more negative in the presence of salt. H-1 NMR shed light on the electrostatic interactions between CTAB and SAIL in mixed state. (C) 2019 Elsevier B.V. All rights reserved.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 143-15-7. HPLC of Formula: C12H25Br.

Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Category: bromides-buliding-blocks, 143-15-7, Name is 1-Bromododecane, molecular formula is C12H25Br, belongs to bromides-buliding-blocks compound. In a document, author is Gossard, Alban, introduce the new discover.

High Internal Phase Emulsions Stabilized by a Zeolite-Surfactant Combination in a Composition-Dependent Manner

As a step toward synthesizing zeolite-based porous materials, this study demonstrates for the first time the feasibility of stabilizing oil-in-water (O/W) high internal phase emulsions (HIPEs) using a cationic surfactant (tetradecyltrimethylammonium bromide, TTAB) and home-made submicronic Linde type A zeolite particles. The zeolite particles are hydrophilic and therefore do not attach to dodecane-water interfaces, but surface tension measurements and electrochemical data show that their surface can be activated by the electrostatic and subsequent hydrophobic adsorption of TTAB. Comparing the adsorption isotherm of TTAB and zeta potential of the particles with the droplet sizes and rheological properties of the emulsion shows that the stabilization mechanism depends on the TTAB/zeolite weight ratio. At low TTAB/zeolite weight ratios (<= 0.2 wt %), gel-like O/W Pickering HIPEs form, but at intermediate TTAB concentrations, the zeolite particles become more hydrophobic, leading to phase inversion and the stabilization of W/O emulsions. At high TTAB/zeolite weight ratios (>1.25 wt %), a second phase inversion occurs and creamy O/W HIPEs form through a different stabilization mechanism. In this case indeed, the zeolite particles are fully covered by a bilayer of TTAB and remain dispersed in the aqueous phase with no adsorption to the dodecane-water interface. The emulsion is stabilized by electrostatic repulsion between the highly positively charged zeolite particles and the cationic surfactant adsorbed at the dodecane-water interface.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 143-15-7. Category: bromides-buliding-blocks.