Tag: M.W=200-250

Duhme, Anne Kathrin published the artcileLigand-deficient complexes of cadmium. Synthesis and spectroscopic characterization of molecular pentafluorophenyl cadmium thiolates and the structure of the cubane complex [{Cd(C₆F₅)(SBu^t)}₄], HPLC of Formula: 22693-41-0, the publication is Zeitschrift fuer Naturforschung, B: Chemical Sciences (1994), 49(1), 119-27, database is CAplus.

In toluene, bis(pentafluorophenyl)cadmium(II) and thiols RSH (R = Bu^t, 2,4,6-Prⁱ₃C₆H₂, 2,4,6-Bu^t₃C₆H₂) react to give soluble pentafluorophenyl cadmium thiolates [{Cd(C₆F₅)(SR)}_n]. The compounds [{Cd(C₆F₅)(SBu^t)}₄] (1).0.5 C₆H₅CH₃, [{Cd(C₆F₅)(SC₆H₂Prⁱ₃-2,4,6)}_n] (2).ca. 0.25 n C₆H₅CH₃, and [{Cd(C₆F₅)(SC₆H₂Bu^t₃-2,4,6)}_n] (3).ca. 0.25 n C₆H₅CH₃ were prepared in 65, 59 and 78% yields, resp. The structure of 1.0.5 C₆H₅CH₃ was determined by x-ray crystallog. 1 Is a cubane-type complex with a {Cd₄(¦Ì₃-SBu^t)₄}⁴⁺ core. Each Cd atom is coordinated by three bridging thiolato ligands and one terminal C₆F₅ group (Cd-S 2.62 ?, Cd-C 2.15 ? (mean values)). The central C atoms of the Bu^tS^– ligands of 1 show a remarkable low-field shift of their ¹³C NMR resonance (12.3 ppm relative to the value of the free thiol). A characteristic spectral feature of {Cd(C₆F₅)}⁺ complexes is the large value of the coupling constant ²J(¹⁹F,¹³C) of the ipso-C atom (1, 2: 68 Hz; 3: 67 Hz). The complexes [Cd(C₆F₅)(SR) + H]⁺, [Cd(SR)₂+H]⁺, and [Cd₂(SR)₃]⁺ were identified in the CI mass spectra (iso-butane) of 2 and 3.

Zeitschrift fuer Naturforschung, B: Chemical Sciences published new progress about 22693-41-0. 22693-41-0 belongs to catalysis-chemistry, auxiliary class Other Functionalization Reagent, name is 2,4,6-Triisopropylbenzenethiol, and the molecular formula is C15H24S, HPLC of Formula: 22693-41-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Randall, William C. published the artcileQuantitative structure-activity relationships involving the inhibition of glycolic acid oxidase by derivatives of glycolic and glyoxylic acids, Related Products of catalysis-chemistry, the publication is Journal of Medicinal Chemistry (1979), 22(6), 608-13, database is CAplus and MEDLINE.

Seventy substituted glycolic, oxyacetic, and glyoxylic acids [RCH(OH)CO₂H, RCOCO₂H, and ROCH₂CO₂H where R = alkyl, substituted alkyl, Ph, aryl, or substituted aryl] including 6 new glycolic and glyoxylic acids were investigated as inhibitors of glycolate oxidase [9028-71-1], an enzyme involved in the metabolic production of oxalate. Such inhibitors are important in the treatment of genetic hyperoxalurias, diseases in which the overproduction of oxalate leads to systemic deposits of CaC₂O₄. Regression anal. and quant. structure-activity relations were used. The best overall correlation with inhibition was with the Hansch parameter ¦Ð.

Journal of Medicinal Chemistry published new progress about 1798-04-5. 1798-04-5 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 2-(4-(tert-Butyl)phenoxy)acetic acid, and the molecular formula is C12H16O3, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Millwalla, Razia H. H. published the artcileProperties of N-fatty amine salts and their aqueous solutions, Safety of Dodecylamineacetate, the publication is Journal of the Indian Chemical Society (1988), 65(4), 263-5, database is CAplus.

H(CH₂)_nNH₂ (I; n = 11-18) were prepared and converted to H(CH₂)_nNH₃⁺ AcO^– (II; same n) and H(CH₂)_nNH₃⁺ EtCO₂^– (III; same n). The m.ps. of I–III (n = even) and I–III (n = odd) alternate, as do those of fatty acids; in a plot of m.p. vs. number of C atoms, the points for I–III (n = even) lie on a higher curve than those for I–III (n = odd). The Krafft points and critical micelle concentrations of II and III were determined The nature of the alkyl chain (even or odd number of C atoms) also appears to affect micellization behavior.

Journal of the Indian Chemical Society published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Safety of Dodecylamineacetate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Selvaraj, Pravinraj published the artcileElectro-optical effects of organic N-benzyl-2-methyl-4-nitroaniline dispersion in nematic liquid crystals, Computed Properties of 201157-13-3, the publication is Scientific Reports (2020), 10(1), 14273, database is CAplus and MEDLINE.

The dispersion of organic N-benzyl-2-methyl-4-nitroaniline (BNA) in nematic liquid crystals (LCs) is studied. BNA doping decreases the threshold voltage of cell because of the reduced splay elastic constant and increased dielec. anisotropy of the LC mixture When operated in the high voltage difference condition, the BNA-doped LC cell has a fall time that is five times faster than that of the pure one because of the decrements in the threshold voltage of the cell and rotational viscosity of the LC mixture The addnl. restoring force induced by the BNA’s spontaneous polarization elec. field (SPEF) also assists to decrease the fall time of the LC cell. The decreased viscosity can be deduced from the decrements in phase transition temperature and associated order parameter of the LC mixture D. functional theory calculation demonstrates that the BNA dopant strengthens the absorbance for blue light, enhances the mol. interaction energy and dipole moment, decreases the mol. energy gap, and thus increases the permittivity of the LC mixture The calculation also shows that the increased dipole moment, polarizability, and polarizability anisotropy increase the dielec. anisotropy of the LC mixture, which agrees with the exptl. results well. BNA doping has a promising application to the fields of LC devices and displays.

Scientific Reports published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C9H5FO2, Computed Properties of 201157-13-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Selvaraj, Pravinraj published the artcileA comparative study on electro-optic effects of organic n-benzyl-2-methyl-4-nitroaniline and morpholinium 2-chloro-4-nitrobenzoate doped in nematic liquid crystals e7, Safety of N-Benzyl-2-methyl-4-nitroaniline, the publication is Polymers (Basel, Switzerland) (2020), 12(12), 2977, database is CAplus and MEDLINE.

Improvements in electro-optical responses of LC devices by doping organic N-benzyl-2- methyl-4-nitroaniline (BNA) and Morpholinium 2-chloro-4-nitrobenzoate (M2C4N) in nematic liquid crystals (LCs) have been reported in this study. BNA and M2C4N-doped LC cells have the fall time that is fivefold and threefold faster than the pristine LC cell, resp. The superior performance in fall time of BNA-doped LC cell is attributed to the significant decrements in the rotational viscosity and threshold voltage by 44% and 25%, resp., and a strong addnl. restoring force resulted from the spontaneous polarization elec. field of BNA. On the other hand, the dielec. anisotropy (¦¤¦Å) of LC mixture is increased by 16% and 6%, resp., with M2C4N and BNA dopants. M2C4N dopant induces a large dielec. anisotropy, because the phenylamine/hydroxyl in M2C4N induces a strong intermol. interaction with LCs. Furthermore, BNA dopant causes a strong absorbance near the wavelength of 400 nm that filters the blue light. The results indicate that M2C4N doping can be used to develop a high ¦¤¦Å of LC mixture, and BNA doping is appropriate to fabricate a fast response and blue-light filtering LC device. D. Functional Theory calculation also confirms that BNA and M2C4N increase the dipole moment, polarization anisotropy, and hence ¦¤¦Å of LC mixture

Polymers (Basel, Switzerland) published new progress about 201157-13-3. 201157-13-3 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is N-Benzyl-2-methyl-4-nitroaniline, and the molecular formula is C23H28N2O4, Safety of N-Benzyl-2-methyl-4-nitroaniline.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Chockalingam, Evvie published the artcileStudies on biodegradation of organic flotation collectors using Bacillus polymyxa, Recommanded Product: Dodecylamineacetate, the publication is Hydrometallurgy (2003), 71(1-2), 249-256, database is CAplus.

Biodegradation of organic flotation collectors, namely sodium isopropylxanthate, dodecylammonium acetate and sodium oleate in solution, was studied by using Bacillus polymyxa. The biodegradation has been assessed under different conditions, namely during growth, in the presence of the cells, metabolite or an active culture. Xanthate biodegradation was better in the presence of an active culture or metabolite, while the biodegradation of dodecylammonium acetate was more efficient during bacterial growth. The efficacy of biodegradation of sodium oleate was the highest by using an active culture. The growth of the organism can be successfully achieved in the presence of the organic collectors. The surface chem. changes brought about by the interaction between the minerals, namely galena, quartz or calcite and collector, metabolite or cells served as indicators of the biodegradation process. The biol. stripping of the adsorbed collector reagents from mineral surfaces was also confirmed by FTIR spectroscopy.

Hydrometallurgy published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Recommanded Product: Dodecylamineacetate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Chockalingam, Evvie published the artcileStudies on biodegradation of organic flotation collectors using Bacillus polymyxa, COA of Formula: C14H31NO2, the publication is Process Metallurgy (2001), 433-442, database is CAplus.

Biodegradation of organic flotation collectors namely sodium isopropylxanthate, dodecylammonium acetate, and sodium oleate in solution was studied using Bacillus polymyxa. The biodegradation was assessed under different conditions namely during growth, in the presence of the cells, metabolite or an active culture. Xanthate biodegradation was found to be better in the presence of an active culture or metabolite while the biodegradation of dodecylammonium acetate was more efficient during bacterial growth. The efficacy of biodegradation of sodium oleate was the highest using an active culture. The growth of the organism could be successfully achieved in the presence of the organic collectors. The surface chem. changes brought about by the interaction between the minerals namely galena, quartz, and calcite, collector, metabolite or cells served as indicators of the biodegradation process. The biol. stripping of the adsorbed collector reagents from mineral surfaces was also confirmed by FTIR spectroscopy.

Process Metallurgy published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, COA of Formula: C14H31NO2.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Tucker, Lucas J. published the artcileHolography via liquid crystalline photopolymerization: The effect of various additives, Computed Properties of 2909-77-5, the publication is Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (2006), 47(2), 523-524, database is CAplus.

Photopolymerization of nematic liquid crystalline diacrylate monomer mixtures with a cyanophenyl heptylbenzoate dielec. dopant, photoinitiators, and a trithiocarbonate, was shown to give rise to elec. stable gratings. The effects of several types of additives on grating formation were studied. The additives include an inhibitor, a co-initiator, and an anti-bleaching accelerator. The additive with the greatest impact on the mixture is a trithiocarbonate.

Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C16H14O6, Computed Properties of 2909-77-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kaplaneris, Nikolaos published the artcileEnantioselective Organocatalytic Synthesis of 2-Oxopiperazines from Aldehydes: Identification of the Elusive Epoxy Lactone Intermediate, Computed Properties of 140-28-3, the publication is Organic Letters (2016), 18(22), 5800-5803, database is CAplus and MEDLINE.

An organocatalytic linchpin catalysis approach was envisaged to convert simple aldehydes into enantioenriched 2-oxopiperazines. A four-step reaction sequence (chlorination, oxidation, substitution, and cyclization) was developed and led to different substitution patterns in high yields and selectivities. The reaction mechanism was studied, and the previously elusive epoxy lactone intermediate was identified by HRMS.

Organic Letters published new progress about 140-28-3. 140-28-3 belongs to catalysis-chemistry, auxiliary class Benzenes, name is N1,N2-Dibenzylethane-1,2-diamine, and the molecular formula is C16H20N2, Computed Properties of 140-28-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Senthilkumar, P. published the artcileSynthesis of 2-amino-3-phenylpropan-1-ol compounds from Baylis-Hillman derivatives, carbon nanotube, kinetic, lifetime and biological studies, Formula: C10H11NO4, the publication is Rasayan Journal of Chemistry (2018), 11(1), 175-180, database is CAplus.

A novel class of 2-amino-3-phenylpropane-1-ol compounds I [R¹ = Me, Cl; R² = Cl, MeO; R³ = Me, Et, i-Pr, F, Cl, MeO; R²R³ = OCH₂O] was synthesized by carbon nanotube method reaction for the first time. The iron acidic acid reduction reaction was also carried out on Baylis-Hillman adducts to synthesize an array of novel 2-amino-3-phenylpropane-1-ol compounds I from nitroolefin derivatives reaction with good yields. Amine compounds I were carried out for kinetic and biol. studies. Compound I [R¹ = Me, R² = R³ = H] showed highest antimicrobial activity against Escherichia coli, Klebsiella sp, Candida albicans, Salmonella typhi and Staphylococcus aureus whereas compound I [R¹ = R² = H, R³ = F] showed the lowest activity.

Rasayan Journal of Chemistry published new progress about 4230-93-7. 4230-93-7 belongs to catalysis-chemistry, auxiliary class Alkenyl,Nitro Compound,Benzene,Ether, name is 1,2-Dimethoxy-4-(2-nitrovinyl)benzene, and the molecular formula is C13H13N, Formula: C10H11NO4.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia