Category: 2834-05-1

Reference of 11-Bromoundecanoic acid. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Antioxidant and Biological Activities of Novel Structured Monoacylglycerol Derivatives with Phenolic Acids. Author is Gandhi, Bhukya; Juliya, Johny; Dileep, Veeragoni; Uma Rajeswari, Batchu; Misra, Sunil; Kaki, Shiva Shanker.

Novel structured monoacylglycerol (MAG)-based phenolic lipids are synthesized from11-bromoundecanoic acid, phenolic acids, and solketal. Selected phenolic acids namely 4-hydroxy benzoic, vanillic, syringic, cinnamic, p-coumaric, sinapic, 4-fluorocinnamic, 4-hydroxyphenyl acetic acid, 3-(4-hydroxyphenyl) propanoic and dihydrocaffeic acids are employed for the synthesis of ten novel MAG-based phenolic lipids. The synthesized phenolic lipids are characterized by FT-IR, NMR, and mass spectra anal. All the compounds are evaluated for antioxidant, antimicrobial, and cytotoxic activities. MAG derivative 8g of sinapic acid exhibits excellent antioxidant activity in both DPPH assay and inhibition of lipid oxidation assay. MAG derivative 8f bearing p-coumaric acid shows good antimicrobial activity against both Gram-pos. and Gram-neg. bacterial strains with a min. inhibitory concentration (MIC) value of 6.25 μM mL-1. All the synthesized compounds are found to exhibit cytotoxicity against B16, DU145, and CHO cell lines, while sinapic and p-coumaric acid derivatives exhibit better activities compared to other derivatives

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about n-Type Redox-active Benzoylpyridinium-substituted Supramolecular Gel for an Organogel-based Rechargeable Device.Reference of 11-Bromoundecanoic acid.

A supramol. benzoylpyridinium-substituted cyclohexanediamine gelator with n-type redox properties was synthesized. The gelator formed a robust supramol. network consisting of cyclohexanediamine units. In the organogel, the stable redox reactions of the benzoylpyridinium moieties led to a reversible charge/discharge at -1.05 V (vs.Fc/Fc+). A supramol.-based rechargeable device was fabricated using TEMPO- and benzoylpyridinium-substituted gelators as the cathode and anode, resp., giving rise to a flexible, transparent, and even self-healable battery.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

SDS of cas: 2834-05-1. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Cysteine Derivatized 99mTc-Labelled Fatty Acids as β-Oxidation Markers. Author is Tsotakos, Theodoros; Triantis, Charalambos; Kiritsis, Christos; Panagiotopoulou, Aggeliki; Psimadas, Dimitrios; Kyprianou, Patricia; Pelecanou, Maria; Papadopoulos, Minas; Pirmettis, Ioannis.

With the aim of developing 99mTc-labeled fatty acids intended for myocardial metabolism imaging we report herein the synthesis and characterization of two novel derivatives of undecanonoic and hexadecanonoic acid that have been functionalized at the ω-site by cysteine through the formation of a thioether bond (Cys-FA11 and Cys-FA16). Equimolar amounts of each ligand and the [NEt4]2[Re(CO)3Br3] precursor generated the resp. hexacoordinated neutral complexes in which the ligand coordinated to the metal through the SNO donor system of cysteine. The rhenium complexes were characterized by elemental anal., IR and NMR spectroscopies. The analogus technetium-99m complexes, 99mTc-Cys-FA11 and 99mTc-Cys-FA16 were prepared by incubation of the ligand with the precursor [99mTc(CO)3(H2O)3]+ (radiochem. yield ≥98%). Their structure was established by comparative HPLC techniques. In vivo studies in mice showed high initial heart uptake for both 99mTc complexes (7.4 ±plusmn; 0.53 and 7.07 &± 0.73 percentage of injected dose (%ID)/g at 1 min post) injection. Rapid clearance (0.60 ± 0.02%ID/g) was observed for 99mTc-Cys-FA11 while the clearance of the longer fatty acid 99mTc-Cys-FA16 was slower (2.31 ±0.09%ID/g at 15 min p.i.). Metabolite anal. study indicated that complexes were catabolized through the β-oxidation process.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 2834-05-1, is researched, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2Journal, Article, Photochemical & Photobiological Sciences called Fluorescence detection of pyrene-stained Bacillus subtilis LPM1 rhizobacteria from colonized patterns of tomato roots, Author is Hernandez, Monica; Ortiz-Castro, Randy; Flores-Olivas, Alberto; Moggio, Ivana; Arias, Eduardo; Valenzuela-Soto, Jose Humberto, the main research direction is fluorescence detection pyrene Bacillus tomato root.Application In Synthesis of 11-Bromoundecanoic acid.

A series of water soluble 8-alcoxypyrene-1,3,6-trisulfonic sodium salts bearing different alcoxy lateral chains and functional end groups was synthesized and the mol. structure was corroborated by NMR spectroscopy. The photophys. properties in water analyzed by UV-Vis and static and dynamic fluorescence revealed that all of the pigments emit in the blue region at a maximal wavelength of 436 nm and with fluorescence lifetimes in the range of ns. Among them, sodium 8-((10-carboxydecyl) oxy) pyrene-1,3,6-trisulfonate M1 exhibits a high fluorescence quantum yield (ϕ = 80%) and a good interaction with B. subtilis LPM1 rhizobacteria; this has been demonstrated through in vitro staining assays. Tomato plants (Solanum lycopersicon cv.Micro-Tom) increased the release of root exudates, mainly malic and fumaric acids, after 12 h of treatment with benzothiadiazole (BTH) as a foliar elicitor. However, the chemotaxis anal. demonstrated that malic acid is the most powerful chemoattractant of the rhizobacteria Bacillus subtilis LPM1: in agar plates, a major growth (60 mm) was found for a concentration of 100 mM, while in capillary tubes, the earliest response was at 30 min with 3.3 x 108 CFU mL-1. The confocal microscopic anal. carried out on the tomato roots of the pyrene stained B. subtilis LPM1 revealed that this bacterium mainly colonizes the epidermal zones, i.e. the junctions to primary roots, lateral roots and root hairs, meaning that these root hair sections are the highest colonisable sites involved in the biosynthesis of exudates. This fluorescent pyrene marker M1 represents a valuable tool to evaluate B. subtilis-plant interactions in an easy and quick test in both in vitro and in vivo tomato crops.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Mangaiyarkarasi, R.; Premlatha, S.; Khan, Rajkumar; Pratibha, R.; Umadevi, S. published an article about the compound: 11-Bromoundecanoic acid( cas:2834-05-1,SMILESS:O=C(O)CCCCCCCCCCBr ).Related Products of 2834-05-1. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:2834-05-1) through the article.

A new ionic liquid crystal (ILC) bearing a biphenyl core and a terminal imidazolium moiety was synthesized which exhibited two enantiotropic smectic A mesophases having a wide phase range. Interestingly one of these mesophases exhibited the features of a biaxial phase. A composite electrode containing the synthesized ILC and carbon paste (CP) was fabricated and employed for the successful electrochem. detection of a clin. important analgesic drug, paracetamol. The ILC-CP composite electrode displayed an enhanced current response due to a versatile combination of properties namely, good ionic conductivity, increased edge-site defects and excellent electrocatalytic activity. The composite electrode responded quickly upon addition of paracetamol and the peak current of anodic oxidation enhanced at lower over potential compared to the carbon paste electrode (CPE). Differential pulse voltammetric (DPV) experiments for the detection of paracetamol yielded acceptable linear range from 0 to 120μM with a good detection limit of 2.8μM. Interference test results showed anti-interfering ability in presence of a mixture of interferents. The electrode stability was evaluated from DPV current response and 92.6% current was retained after one month which revealed the excellent stability. The electrode was successfully applied for the direct determination of paracetamol in pharmaceutical formulations.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Recommanded Product: 2834-05-1. 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: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Sepiolite modified with phosphonium ionic liquids as anticorrosive pigment for epoxy coatings. Author is Henriques, Ruan R.; Soares, Bluma G..

The performance of sepiolite modified with different phosphonium-based ionic liquids (SepIL) as anti-corrosive pigment for epoxy resin (ER) coatings were discussed in this paper. The ionic liquids (IL) used to functionalize Sep clay mineral included trihexyl-(tetradecyl)phosphonium bistriflimide (IL1) and ethyl-tri(butyl)-phosphonium diethylphosphate (IL2) as com. IL and the synthesized 11-carboxyundecyl-(triphenyl)-phosphonium bromide (IL3). All SepIL samples were characterized by Fourier transform IR (FTIR) spectroscopy, thermogravimetric anal. (TGA), elemental anal. (CHN) and X-ray diffraction (XRD). The effect of the incorporation of Sep and SepIL on the rheol. properties of the ER-based dispersions and on anticorrosion properties of epoxy networks cured with isophorone diamine was investigated. The ER-based coatings loaded with Sep modified with different ionic liquids presented enhanced the anticorrosive properties with outstanding barrier properties against the diffusion of the electrolyte solution, as indicated by electrochem. impedance spectroscopy (EIS). The superior corrosion resistance of ER loaded with SepIL was also kept with scratched coating, due to the inhibition activity of the ionic liquid against corrosion process.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 2834-05-1, is researched, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2Journal, Industrial & Engineering Chemistry Research called Crystallinity and Water Vapor Permeability of n-Alkane, Alcohol, Aldehyde, and Fatty Acid Constituents of Natural Waxes, Author is Leyva-Gutierrez, Francisco M. A.; Wang, Tong, the main research direction is crystallinity water vapor permeability alkane alc aldehyde fatty acid.Synthetic Route of C11H21BrO2.

Natural waxes are valuable industrial products consisting of complex chem. mixtures To probe the structure-function role of select constituents, model n-alkanes, alcs., aldehydes, and fatty acids of C18-19, C22-23, and C26-27 carbon chain lengths were synthesized and analyzed via calorimetry and X-ray powder diffraction. Pure compounds and binary mixtures crystallized into monoclinic (M), triclinic (T), and orthorhombic (O) lattices or combinations thereof. The C26 aldehyde formed an O lattice and exhibited one solid-solid phase transition similar to n-alkanes. The water vapor permeability (WVP) of model systems cast as films was determined For pure compounds, WVP decreased in the following order: fatty acid > even n-alkane > odd n-alkane > alc. > aldehyde. Increasing carbon chain length, which translates to increasing unit cell volume, decreased WVP. Binary mixtures generally exhibited a more complex relationship with WVP. These findings may be applicable to the agricultural postharvest, pharmaceutical, and paperboard coating industries.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Recommanded Product: 11-Bromoundecanoic acid. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Conversion of curved assemblies into two dimensional sheets. Author is Deshmukh, Gunvant; Krishnamoorthy, Kothandam.

The design and preparation of organic two dimensional (O2D) sheets and their conversion to curved nanostructures is in its infancy. To convert a flat structure into a curved structure, the mol. must have multiple interaction possibilities and an in-built twist. The conjugated small mol. iso-Indigo (i-Indigo) comprises two Ph rings that are twisted (the dihedral angle is 15°) at the junction. The i-Indigo has been connected with moieties that impart hydrogen bonding and van der Waals interactions. Due to the presence of the π cloud in i-Indigo, π-π interactions are also present in the mol. While all three interactions are in operation, rings and toroids are formed. Upon addition of hydrogen bonding competing solvents, the rings and toroids unravel to form O2D sheets. Control mols. that don’t have hydrogen bonding moieties and π-π interactions form random assemblies. Please note that the rings, toroids and O2D sheets are formed in a single solvent by simple dissolution, unlike previous approaches that involve multiple steps and solvents.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 11-Bromoundecanoic acid, is researched, Molecular C11H21BrO2, CAS is 2834-05-1, about Castor Oil-Based Bioplastics via Polyesterification: Synthesis, Characterization, and Functionalization, the main research direction is castor oil based bioplastics polyesterification functionalization.COA of Formula: C11H21BrO2.

Synthesis and application of biobased polymers are at the forefront of polymer science. Herein, we report the synthesis, characterization, and functionalization of castor oil-based bioplastics. At first, polymer P1 was synthesized via polyesterification by using monomer 11-bromoundecanoic acid (1) to demonstrate the feasibility of this step-growth polymerization method. The success of this polycondensation technique relies on the high substitution efficiency between terminal groups, carboxylic acid, and carbon-bromide moieties under alk. conditions. Subsequently, copolymers P2-P5 with varied compositions were obtained by random copolymerization of monomers 1 and 6-bromohexanoic acid (2) in different feed ratios. Linear pos. correlation is disclosed between the crystallization (Tc) and melting (Tm) temperatures of P1-P5 and the molar fraction of 1 within these specimens. Differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) results illustrate good crystallinity of these bioplastics. Furthermore, the degradation of polymers P1-P5 is propelled by an external basic environment while hindered by their intrinsic hydrophobicity, indicating that alkalinity and composition are two essential factors to manipulate the degradation behaviors of biobased polyesters in the bulk state. Ultimately, polymerization of 1 in the presence of 1-pyrenebutyric acid (3), an end-capping agent, was carried out to yield α-pyrene functionalized polymer P7. This material is capable of serving as a practical fluorescent probe and multiwalled carbon nanotube (MWNT) dispersion stabilizer. Polyesterification reported herein represents a facile and cost-effective synthetic strategy and shows great prospects in sustainable polymer materials.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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: 2834-05-1, is researched, SMILESS is O=C(O)CCCCCCCCCCBr, Molecular C11H21BrO2Journal, New Journal of Chemistry called A cholesterol based imidazolium ionic liquid crystal: synthesis, characterisation and its dual application as an electrolyte and electrode material, Author is Mangaiyarkarasi, R.; Selvam, S.; Ganesh, V.; Umadevi, S., the main research direction is cholesterol imidazolium ionic liquid crystal preparation electrolyte electrode.Category: catalyst-ligand.

A new ionic liquid crystal (ILC) containing cholesterol and bearing a terminal imidazolium moiety was synthesized and its mesophase behavior was investigated by polarizing optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD) studies. The ILC displayed an intercalated lamellar mesophase having a wide phase range. Cyclic voltammetry studies of the synthesized ILC revealed electrochem. stability with a good electrochem. window. Further, the electrochem. performance of the ILC was evaluated as an electrolyte (0.5% in ethanol) for supercapacitor applications using a three electrode system consisting of a graphene oxide-manganese dioxide (100 μm) coated carbon fiber electrode, silver-silver chloride (Ag-AgCl) reference and platinum foil counter electrodes. Among three different ratios of graphene oxide-manganese dioxide (1 : 1, 1 : 0.5, and 0.5 : 1) investigated, the electrode containing 0.5 : 1 wt% graphene oxide-manganese dioxide over carbon fiber showed good capacitive behavior with a specific capacitance of 157.5 F g-1 at a constant c.d. of 0.5 A g-1 along with a good cyclic stability. In addition, the ILC was also studied as an electrode material in combination with carbon paste for investigating electron transfer reactions.

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Reference:
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI