Tag: M.W:200-300

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, U.S. Gov’t, Non-P.H.S., Journal of the American Chemical Society called Dictating Nanoparticle Assembly via Systems-Level Control of Molecular Multivalency, Author is Santos, Peter J.; Cao, Zhen; Zhang, Jianyuan; Alexander-Katz, Alfredo; Macfarlane, Robert J., which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, COA of Formula: C11H23Br.

Nanoparticle assembly can be controlled by multivalent binding interactions between surface ligands, indicating that more precise control over these interactions is important to design complex nanoscale architectures. It has been well-established in natural materials that the arrangement of different mol. species in three dimensions can affect the ability of individual supramol. units to coordinate their binding, thereby regulating the strength and specificity of their collective mol. interactions. However, in artificial systems, limited examples exist that quant. demonstrate how changes in nanoscale geometry can be used to rationally modulate the thermodn. of individual mol. binding interactions. As a result, the use of nanoscale design features to regulate mol. bonding remains an underutilized design handle to control nanomaterials synthesis. Here we demonstrate a polymer-coated nanoparticle material where supramol. bonding and nanoscale structure are used in conjunction to dictate the thermodn. of their multivalent interactions, resulting in emergent bundling of supramol. binding groups that would not be expected on the basis of the mol. structures alone. Addnl., we show that these emergent phenomena can controllably alter the superlattice symmetry by using the mesoscale particle arrangement to alter the thermodn. of the supramol. bonding behavior. The ability to rationally program mol. multivalency via a systems-level approach therefore provides a major step forward in the assembly of complex artificial structures, with implications for future designs of both nanoparticle- and supramol.-based materials.

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Molecular Liquids called Coumarin substituted symmetric diaminopyridine molecules: Synthesis, mesomorphic characterizations and DFT studies, Author is Mohammad, AbdulKarim-Talaq; Al-Mohammed, Mohammad Hameed; Srinivasa, H. T.; Ameen, Wissam Ahmed, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, Recommanded Product: 693-67-4.

Synthesis and characterization of 2,6-diaminopyridine bearing sym. substituted coumarins I [R = n-pentyl, n-octyl, n-nonanyl, etc.] from a lateral side of the mols. was reported. All the mols. I were characterized by standard spectroscopic methods such as IR spectroscopy and NMR spectroscopy techniques. Mesomorphic properties were evaluated by the differential scanning calorimetry and the polarized optical microscope. The measurements showed that the lower members did not favor liquid crystal formation, while higher members were exhibiting liquid crystalline, namely nematic mesophase. The DFT computations manifest the nature of liquid crystal geometrical aspects.

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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Rhodium-catalyzed direct alkylation of benzylic amines using alkyl bromides, published in 2019-01-31, which mentions a compound: 693-67-4, mainly applied to benzylmethylamino pyridine alkyl bromide rhodium catalyzed alkylation; Catalysis; C–H activation; C–H functionalization; Directing group, Electric Literature of C11H23Br.

The development and substrate scope evaluation of a direct alkylation protocol of the C(sp3)-H bond of benzylic amines using alkyl bromides was reported. This pyridine-directed method was initiated by elimination of the alkyl bromide to a terminal olefin, which was then the true alkylating agent.

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Reference of 1-Bromoundecane. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Novel green synthetic approach for liquid crystalline materials using multi-component reactions. Author is Shanker, G.; Srinatha, M. K.; Sandhya Kumari, D.; Ranjitha, B. S.; Alaasar, M..

Synthesis of disk-shape liquid crystalline materials using multi-component reactions is reported. Two new series, the compounds I (R = n-CnH2n+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

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Related Products of 693-67-4. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Facilitated transport of copper(II) across polymer inclusion membrane with triazole derivatives as carrier. Author is Gajda, Bernadeta; Plackowski, Radoslaw; Skrzypczak, Andrzej; Bogacki, Mariusz B..

This study investigates copper(II) ion transport through a polymer inclusion membrane (PIM) containing 1-alkyl-1,2,4-triazole (n = 8, 9, 10, 11, 12, 14), o-nitrophenyl octyl ether as the plasticizer and cellulose triacetate as the polymer matrix. The feeding phase was a solution of 0.1 mol/dm3CuCl2 and an equimolar (0.1 mol/dm3) mixture of copper, nickel, and cobalt chlorides with varying concentrations of chloride anions (from 0.5 to 5.0 mol/dm3) established with NaCl. The receiving phase was demineralized water. The flow rate of the source and receiving phases through the membrane module was within the range from 0.5 cm3/min to 4.5 cm3/min. The tests were carried out at temperatures of 20, 30, 40 and 50°C. Transport of NaCl through the membrane was excluded for the duration of the test. It was noted that the flow rate through the membrane changes depending on the length of the carbon chain in the alkyl substituent from 16.1μmol/(m2s) to 1.59μmol/(m2s) in the following order: C8 > C9 > C10 > C11 > C12 > C14. The activation energy was 71.3 ± 3.0 kJ/mol, indicating ion transport through the PIM controlled with a chem. reaction. Results for transport in case of the concurrent separation of copper(II), nickel(II), and cobalt(II) indicate a possibility to sep. them in a selective manner.

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Application of 693-67-4. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Reactivity Ratios of MMA and N,N-Dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium Bromide in Thermal and UV Initiation Copolymerization. Author is Liu, Yixian; Xu, William Z.; Charpentier, Paul A..

Reactivity ratios for the copolymerization of Me methacrylate (MMA) and a quaternary ammonium compound (QAC) N,N-dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium bromide (dMEMUABr) were measured for the first time by using a thermal initiator azobisisobutyronitrile (AIBN) in deuterated DMSO (DMSO-d6) and deuterated chloroform (CDCl3) and a photo initiator 2-hydroxy-2-methylpropiophenone (HMP) under UV irradiation in CDCl3, resp. The consumption profiles for monomer in the thermal initiation copolymerization were monitored by in-situ 1H NMR while the data were analyzed by the Meyo-Lewis, Kelen-Tudos, and Meyer-Lowry methods, showing that the reactivity ratio of dMEMUABr is lower than that of MMA in DMSO-d6 but much higher in CDCl3. The significantly different reactivity ratios of dMEMUABr in DMSO-d6 from that in CDCl3 are attributed to micelle formation. These findings enable addnl. flexibility in the design and development of antimicrobial poly(MMA-co-dMEMUABr) coatings with desired copolymer chain sequence.

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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: 1-Bromoundecane( cas:693-67-4 ) is researched.Recommanded Product: 693-67-4.Buniya, Meaad K.; Mohammad, Abdulkarim-Talaq; Al-Majidi, Suaad Mohammed Husain published the article 《Antibacterial studies of some novel Schiff base compounds》 about this compound( cas:693-67-4 ) in Materials Today: Proceedings. Keywords: aminomethyl benzyliminomethyl phenyl alkoxybenzoate Schiff base preparation antibacterial. Let’s learn more about this compound (cas:693-67-4).

A new series of 4-(((4-(aminomethyl)benzyl)imino)methyl)Ph 4-(alkyloxy)benzoates I [R = n-hexyl, n-octyl, n-tetradecyl, etc.] were synthesized and characterized. The condensation reaction of 4-formylphenyl 4-(alkyloxy)benzoate with 1,4-bis(aminomethyl)benzene yielded the title Schiff base compounds I. Titled compounds I containing a terminal alkoxy chain range from n = 6-14 carbon atoms. FT-IR and multinuclear-NMR were used to determine the structures of target compounds I. Compounds I were subjected antimicrobial studies found to have significant activity against the selected bacterial under study.

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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.Kwamen, A. Carel N.; Jenniches, Judith; Oppel, Iris M.; Albrecht, Markus researched the compound: 1-Bromoundecane( cas:693-67-4 ).Computed Properties of C11H23Br.They published the article 《Solvent Dependence of the Monomer-Dimer Equilibrium of Ketone-Substituted Triscatecholate Titanium(IV) Complexes》 about this compound( cas:693-67-4 ) in Chemistry – A European Journal. Keywords: titanium triscatecholate preparation monomer dimer equilibrium solvent effect; helicates; intermolecular interactions; self assembly; solvent effect; thermodynamics. We’ll tell you more about this compound (cas:693-67-4).

Hierarchical helicates based on ketone-substituted titanium(IV)triscatecholates show different monomer-dimer behavior depending on different solvents. The dimerization constants of a whole series of differently alkyl-substituted complexes is analyzed to show that the solvent has a very strong influence on the dimerization. Hereby, effects like solvophobicity/philicity, sterics, electronics of the substituents and weak side-chain-side-chain interactions seem to act in concert.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 693-67-4, is researched, Molecular C11H23Br, about Room-Temperature, Deep-Red/NIR-Emissive, C3-Symmetric (n,π-conjugated) Columnar Liquid Crystals: C3h-Tris(keto-hydrazone)s, the main research direction is photoluminescent columnar discotic liquid crystal.Electric Literature of C11H23Br.

The first examples of deep-red/near-IR (NIR) photoluminescent, (n,π-conjugated) discotics, namely, C3h-tris(keto-hydrazone)s, which are the tautomers of tris(azo-enol)s, have been synthesized via a facile one-step triple azo-coupling and characterized. The n,π-resonance-assisted intramol. H-bonding, rendering planarity and shape persistence to the central core, facilitates their self-assembly into either a hexagonal columnar (Colh) phase (p6mm lattice) or a columnar rectangular (Colr) phase (p2mm lattice), over an extended thermal range including room temperature, fluorescing in the deep-red/NIR-I region. The low band gap with deep-red/NIR emission makes them ideal candidates for NIR-organic light-emitting diodes (OLEDs) and bioimaging.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 693-67-4, is researched, Molecular C11H23Br, about Inhibition of bacterial growth and galactosyltransferase activity of WbwC by α, ω-bis(3-alkyl-1H-imidazolium)alkane salts: Effect of varying carbon content, the main research direction is alkylimidazolium alkane salt preparation antitumor antibacterial galactosyltransferase inhibitor human; Bacterial cultures; Cell cultures; Glycosyltransferase inhibitors; Imidazolium salts.Computed Properties of C11H23Br.

A series of compounds was designed and synthesized having two imidazolium rings separated by a polymethylene spacer and having alkyl substituents on each of the imidazolium rings. The compounds were assayed for their effects on the activity of galactosyltransferase WbwC, and also on the growth of Gram-neg. and Gram-pos. bacteria, as well as human cells. The inhibition observed on enzyme activities and cell growth was dependent on the total number of carbons in the spacer and the alkyl substituents on the imidazolium rings. These readily synthesized, achiral compounds have potential as antimicrobial and antiseptic agents.

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Tetrahydroisoquinoline – Wikipedia,
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