Tag: M.W=200-250

Usui, Shinnosuke published the artcileSeparation of quartz and hematite by reverse flotation using dodecylamine. I. Effect of particle size on reverse flotation of quartz from hematite using dodecylamine in acidic media, SDS of cas: 2016-56-0, the publication is Nippon Kogyo Kaishi (1983), 99(1148), 915-20, database is CAplus.

Separation by reverse flotation of a mixture of powd. quartz and hematite was carried out in the presence of docecylamine?acetate??[2016-56-0] in acidic solution of pH 5, where quartz is neg. and hematite is pos. charged. The separation was complete except when hematite particle size was 10¦Ì, owing to coagulation of quartz and hematite or slime coating of hematite on quartz. A critical particle size of hematite likely to cause the slime coating was 0.3¦Ì.

Nippon Kogyo Kaishi 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 C14H10O4, SDS of cas: 2016-56-0.

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

Usui, Shinnosuke published the artcileSeparation of quartz and hematite by reverse flotation using dodecylamine. II. Effect of particle size on reverse flotation of quartz from hematite using dodecylamine in alkaline media, SDS of cas: 2016-56-0, the publication is Nippon Kogyo Kaishi (1983), 99(1149), 995-8, database is CAplus.

Reverse flotation of a mixture of powd. quartz and hematite was carried out in the presence of dodecylamine?acetate??[2016-56-0] in alk. solution of pH 10, where both quartz and hematite are neg. charged. The separation was complete (except when hematite particle size was <10¦Ì) owing to concurrent flotation of hematite or ineffective flotation of quartz caused by preferential adsorption of dodecylamine acetate on hematite.

Nippon Kogyo Kaishi 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 C48H47FeP, SDS of cas: 2016-56-0.

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

Kamada, Kei published the artcileGrowth of N-benzyl-2-methyl-4-nitroaniline (BNA) single crystal fibers by micro-pulling down method, Computed Properties of 201157-13-3, the publication is Journal of Crystal Growth (2016), 162-165, database is CAplus.

N-benzyl-2-methyl-4-nitroaniline (BNA) fiber single crystals were grown by the micro-pulling down (¦Ì-PD) method. Crucible material and its shape were selected based on wetting of the crucible material by liquid BNA. As a result, BNA fiber single crystal with about 1-2 mm diameter was successfully grown. Powder XRD anal. and X-ray rocking curve measurements were performed. Widely-tunable THz-wave generation from 4 THz to 14 THz was demonstrated using the BNA fiber crystal grown by ¦Ì-PD method.

Journal of Crystal Growth 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 C14H14N2O2, Computed Properties of 201157-13-3.

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

Wang, Li published the artcileAdsorption mechanism of mixed anionic/cationic collectors in Muscovite – Quartz flotation system, Application of Dodecylamineacetate, the publication is Minerals Engineering (2014), 44-50, database is CAplus.

The flotation separation of muscovite from quartz was investigated using mixed sodium oleate/dodecylamine acetate (NaOL/DDA) collectors. The experiments were conducted on single minerals and on a mixture of minerals, and their collecting performances were studied by means of Fourier transform IR (FTIR) spectroscopy, zeta potential technique and XPS. Neither muscovite nor quartz is floated with NaOL alone, while using DDA alone, they can be separated only at strong acid conditions (pH < 3). Mixed NaOL/DDA collectors exhibits excellent performance in the flotation separation of muscovite from quartz at pH 10. The ratio of the mixed collectors is found to be an important criterion in the flotation tests. The best separation result (muscovite recovery of 80% and quartz recovery of 10%) could be achieved with NaOL/DDA molar ratios of 3/1 and 2/1 at pH 10. The co-adsorption of NaOL and DDA is found on muscovite surface by strong electrostatic interaction, H bonding and chem. adsorption. This study may provide guidance for the flotation mechanism and application of mixed anionic/cationic collectors.

Minerals Engineering 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 C8H16O2, Application of Dodecylamineacetate.

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

Wang, Zhaohong published the artcileOrganic electro-optic thin films by simultaneous vacuum deposition and laser-assisted poling, Product Details of C14H14N2O2, the publication is Optics Letters (2011), 36(15), 2853-2855, database is CAplus and MEDLINE.

Organic materials with a high second-order optical nonlinearity have an important application for the next generation of computing, telecommunications, and other industries. Because of a high electro-optic coefficient and low dielec. constant, N-benzyl-2-methyl-4-nitroaniline (BNA) single crystals have been grown and their optical properties have been extensively studied. In this Letter, a poled BNA thin film material was prepared through simultaneous vacuum evaporation and laser-assisted elec. poling. The linear electro-optic coefficients of BNA were measured by a Young’s two-slit interference electro-optic measurement method. The dependence of the resulting electro-optic properties on optical power was explored. Enhancement induced by laser illumination was demonstrated. The BNA thin film can exhibit an r₃₃ value comparable to that of BNA single crystals.

Optics Letters 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 C10H16O2, Product Details of C14H14N2O2.

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

Chu, Wenyi published the artcileSynthesis and herbicidal activity of N-(4,6-dimethoxy-2-pyrimidinyl)-2-(aryloxy)acetamide, HPLC of Formula: 1798-04-5, the publication is Huaxue Shijie (2005), 46(12), 741-744, database is CAplus.

Seven (phenoxy)acetamide derivatives were prepared on the basis of (oxy)acetamide herbicides. They were synthesized by the reaction of 2-amino-4,6-dimethoxypyrimidine with (aryloxy)acetic acids prepared from phenol derivatives Their chem. structures and purity were confirmed by IR, ¹H NMR spectra, elemental anal., and HPLC. The result of the biol. tests showed that two of them had strong herbicidal activity. The compounds thus prepared were evaluated against Setaria viridis (green bristlegrass), Digitaria sanguinalis (large crabgrass), Echinochloa crus-galli (barnyard grass), Zinnia elegans, Abutilon theophrasti (Indian mallow).

Huaxue Shijie 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, HPLC of Formula: 1798-04-5.

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

Ohki, Yasuhiro published the artcileSynthesis of the P-Cluster Inorganic Core of Nitrogenases, Synthetic Route of 22693-41-0, the publication is Journal of the American Chemical Society (2003), 125(14), 4052-4053, database is CAplus and MEDLINE.

The [8Fe-7S] core of the P-clusters in nitrogenases is unique among the known [Fe-S] clusters which are essential to electron-transfer processes in nature. The [8Fe-7S] cluster was thought unstable and to exist only in protein environments. This unusual [8Fe-7S] structure can be self-assembled from the reaction of Fe(II) bis-amide, tetramethylthiourea, 2,4,6-triisopropylbenzenethiol, and elemental sulfur in a specific mole ratio. The structure of the complex isolated therefrom, [{N(TMS)₂}{SC(NMe₂)₂}Fe₄S₃]₂(¦Ì₆-S){¦Ì-N(TMS)}₂¡¤C₇H₈, closely resembles that of the reduced form (P^N) of the P-clusters, while the 6Fe(II)2Fe(III) oxidation state was manifested by the Mossbauer study.

Journal of the American Chemical Society 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, Synthetic Route of 22693-41-0.

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

Saidalimu, Ibrayim published the artcileSuccessive C-C bond cleavage, fluorination, trifluoromethylthio- and pentafluorophenylthiolation under metal-free conditions to provide compounds with dual fluoro-functionalization, Recommanded Product: Trimethyl(perfluorophenyl)silane, the publication is Chemical Science (2016), 7(3), 2106-2110, database is CAplus and MEDLINE.

The selective C-C bond cleavage and simultaneous formation of two C-F bonds and one C-S bond in ¦Â-keto esters with nucleophilic fluorination reagents such as DAST under metal-free/catalyst-free conditions was disclosed. Double fluorination at two remote carbons with addnl. dialkylamino-sulfenylation provided unique fluorinated compounds in good to high yields. This method was applied for the successive C-C bond cleavage/fluorination/trifluoromethylthiolation of ¦Â-keto esters using trifluoromethyl-DAST (CF₃-DAST) providing different type of fluorinated and trifluoromethylthiolated compounds via a shunt pathway. Doubly fluoro-functionalized compounds obtained in these reactions were unique and difficult to synthesize by other methods.

Chemical Science published new progress about 1206-46-8. 1206-46-8 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Trimethyl(perfluorophenyl)silane, and the molecular formula is C9H9F5Si, Recommanded Product: Trimethyl(perfluorophenyl)silane.

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

Saidalimu, Ibrayim published the artcileConstruction of Fluorinated Benzoxathiin Skeleton by Successive Perfluorophenylthiolation/Cyclization of Activated ¦Á-Methylene Ketones by Perfluorophenyl Diethylaminosulfur Difluoride, Computed Properties of 1206-46-8, the publication is Organic Letters (2017), 19(5), 1012-1015, database is CAplus and MEDLINE.

Pharmaceutically attractive fluorinated benzoxathiin (thiaflavan) skeleton I (wherein EWG is CO₂R¹, COR¹, SO₂Ph and R is aromatic, alkyl or heteroaryl) was directly constructed by the reaction of activated ¦Á-methylene ketones 1 such as ¦Â-keto esters, 1,3-diketone, and ¦Â-keto sulfones with a perfluorophenyl analog of diethylaminosulfur trifluoride, C₆F₅-DAST, in high yields via successive perfluorophenylthiolation/cyclization reaction.

Organic Letters published new progress about 1206-46-8. 1206-46-8 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Trimethyl(perfluorophenyl)silane, and the molecular formula is C9H9F5Si, Computed Properties of 1206-46-8.

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

Exner, Otto published the artcileSubstituent effects in infrared spectroscopy. I. The O-H stretching frequencies in monomeric benzoic acids, Formula: C14H12O3, the publication is Collection of Czechoslovak Chemical Communications (1971), 36(2), 534-43, database is CAplus.

The O-H stretching frequencies of 60 meta- and para-substituted benzoic acids were measured in dilute CCl4 solution The IR values were correlated by the Hammett equation with normal ¦Ò constants and slope ¦Ñ = -11.7 cm-1 on the one hand, and by the equation vp-v0 = 1.14 (vm-v0) on the other hand, where the frequency v0 refers to the unsubstituted compound The validity of the latter for substituents without an ¦Á lone electron pair was confirmed even in IR spectroscopy. Somewhat lesser accuracy of the Hammett correlation is probably due to a different solvent than used in determining the ¦Ò constants; deviations of a systematic character were not observed

Collection of Czechoslovak Chemical Communications published new progress about 31719-76-3. 31719-76-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 4-(Phenoxymethyl)benzoic acid, and the molecular formula is C14H12O3, Formula: C14H12O3.

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