Catalysis-chemistry

Chernyshev, E. A. published the artcileAddition of arylfluorosilanes to styrene, HPLC of Formula: 312-40-3, the publication is Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya (1965), 650-4, database is CAplus.

Addition of 16 g. 40% HF at -30 to -40¡ã to 60 g. PhSiHCl₂ gave 74% PhSiHF₂, b. 111-11.5¡ã, n²⁰_D 1.4442, d₂₀ 1.1194; similarly were prepared 55% Ph₂SiHF, b₂ 92-3¡ã, 1.5550, 1.1072, and 48% 1-C₁₀H₇SiHF₂, b₂₀ 124-6¡ã, 1.5600, 1.2136. PhSiHCl₂ added to PhCH:CH₂ in the presence of H₂PtCl₆ catalyst gave after 5 hrs. on a stream bath 43% PhCH₂CH₂SiPhF₂, b_2.5 134¡ã, 1.5650, 1.1688. PhCH:CH₂ and PhSiHF₂ similarly gave in 2 hrs. at 30-5¡ã 83% mixed PhC₂H₄SiPhF₂, b₂₀ 160-2¡ã, 1.5262, 1.1156; ir spectra indicated that the CHMe bridge predominated over the CH₂CH₂ bridge in this mixture by 3:1. PH₂SiHF and PhCH:CH₂ gave 80% 1:1 mixture of isomeric PhC₂H₄SiPh₂F, b_4.5 194.5-96¡ã, 1.5828, 1.1036. 1-C₁₀H₇SiHF₂ and PhCH:CH₂ gave 65% mixed isomers of 1-C₁₀H₇Si(C₂H₄Ph)F₂, b₂ 154-6¡ã, 1.5915, 1.1876. A 1:1 mixture of PhSiHF₂ and PhSiHCl₂ kept 1.5 hrs. then treated with PhCH:CH₂ and H₂PtCl₆ gave 83.8% PhC₂H₄SiPhF₂; other ArSiHF₂ behaved similarly. Passage of PhSiHF₂ and PhCl through a quartz tube at 580¡ã gave 22% Ph₂SiF₂, b₄ 98¡ã, 1.5372, 1.1554, and some PhSiF₃ and PhSiHF₂.

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, HPLC of Formula: 312-40-3.

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

Woods, Lucy A. published the artcileNative State Mass Spectrometry, Surface Plasmon Resonance, and X-ray Crystallography Correlate Strongly as a Fragment Screening Combination, Application of 2-(3-(Benzyloxy)phenyl)acetic acid, the publication is Journal of Medicinal Chemistry (2016), 59(5), 2192-2204, database is CAplus and MEDLINE.

Fragment-based drug discovery (FBDD) is contingent on the development of anal. methods to identify weak protein-fragment noncovalent interactions. Herein we have combined an underutilized fragment screening method, native state mass spectrometry, together with two proven and popular fragment screening methods, surface plasmon resonance and X-ray crystallog., in a fragment screening campaign against human carbonic anhydrase II (CA II). In an initial fragment screen against a 720-member fragment library (the “CSIRO Fragment Library”) seven CA II binding fragments, including a selection of nonclassical CA II binding chemotypes, were identified. A further 70 compounds that comprised the initial hit chemotypes were subsequently sourced from the full CSIRO compound collection and screened. The fragment results were extremely well correlated across the three methods. Our findings demonstrate that there is a tremendous opportunity to apply native state mass spectrometry as a complementary fragment screening method to accelerate drug discovery.

Journal of Medicinal Chemistry published new progress about 1860-58-8. 1860-58-8 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 2-(3-(Benzyloxy)phenyl)acetic acid, and the molecular formula is C6H13N3O2, Application of 2-(3-(Benzyloxy)phenyl)acetic acid.

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

Otsuki, Akira published the artcileSeparation of rare earth fluorescent powders by two-liquid flotation using organic solvents, Computed Properties of 2016-56-0, the publication is Japanese Journal of Applied Physics (2008), 47(6), 5093-5099, database is CAplus.

We describe a method for separation of ultra-fine particles prior to recycling. The authors suggest a 2-step process for separating a mixture of 3 different rare earth fluorescent powders (i.e., red, green, and blue). Each step of the process is a 2-liquid flotation, which involves 2 organic solvents (i.e., a non-polar and a polar solvent, in order to create 2 different phases) and a surfactant to manipulate the wettability of the powders. In the 1st step, the green powder migrates toward a non-polar phase such as n-heptane and remains at the interface of 2 solvents. The remaining 2 components precipitate in the polar phase. In the 2nd step, the blue powder migrates toward a non-polar phase and remains at the interface of 2 solvents, while the red powder precipitates in the polar phase. After testing various non-polar solvents, a selection was made, and the operational parameters (e.g., concentration of surfactant and solid) were varied in order to maximize the efficiency of the process. The grade and recovery of each separated fluorescent powder were both >90%.

Japanese Journal of Applied Physics 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, Computed Properties of 2016-56-0.

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

Slavchev, Ivaylo published the artcileAntimycobacterial activity generated by the amide coupling of (-)-fenchone derived aminoalcohol with cinnamic acids and analogues, Recommanded Product: (E)-3-(3-Nitrophenyl)acrylic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(21), 5030-5033, database is CAplus and MEDLINE.

Aminoethyl substituted 2-endo-fenchol prepared from (-)-fenchone was used as scaffold for the synthesis of series of 31 amide structures by N-acylation applying cinnamic acids and analogs. The evaluation of their in vitro activity against Mycobacterium tuberculosis H₃₇Rv showed for some of them promising activity-up to 0.2 ¦Ìg/mL, combined with relatively low cytotoxicity of the selected active compounds

Bioorganic & Medicinal Chemistry Letters published new progress about 1772-76-5. 1772-76-5 belongs to catalysis-chemistry, auxiliary class Benzenes, name is (E)-3-(3-Nitrophenyl)acrylic acid, and the molecular formula is C9H9ClN2, Recommanded Product: (E)-3-(3-Nitrophenyl)acrylic acid.

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

Sasso, Barbara published the artcileSynthesis of ¦Ø-End Group Functionalized Poly(methyl methacrylate)s via RAFT Polymerization, Product Details of C10H6F17N, the publication is Macromolecules (Washington, DC, United States) (2010), 43(18), 7453-7464, database is CAplus.

“Living” poly(Me methacrylate) (PMMA), prepared by the RAFT technique, reacted with maleic anhydride to give succinic anhydride-terminated PMMA (SA-PMMA) in very high yield. The ¦Ø-terminal anhydride residues react in high yields with primary alcs., primary amines and aromatic amines. As examples, SA-PMMA reacted with 1H,1H,2H,2H-perfluorodecylamine to give a polymer containing 5.78% of fluorine; with Disperse Orange 3 to give a dye-labeled PMMA; with 9-hydroxymethylanthracene to give a fluorescently labeled PMMA; with norephedrine to give a polymer with a biol. active end group; and with 4,4′-diaminophenymethane to give amine-ended PMMA. The latter reacted smoothly with fluorescein isocyanate to give a fluorescently labeled PMMA. In these examples the fraction of polymer chains functionalized were in the range 75-95%. Allowing for the fact the starting PMMAs were up to 96% “living”, these loadings correspond to functionalization yields, for the anhydride addition plus the reaction with the nucleophiles, of 81-99%.

Macromolecules (Washington, DC, United States) published new progress about 30670-30-5. 30670-30-5 belongs to catalysis-chemistry, auxiliary class Polyfluoroalkanes, name is 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-Heptadecafluorodecan-1-amine, and the molecular formula is C10H6F17N, Product Details of C10H6F17N.

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

Ruiz Cruz, J. published the artcilePollution of natural waters by synthetic detergents. XV. Relation between structure and biodegradation of cationic surfactants in river water, COA of Formula: C14H31NO2, the publication is Grasas y Aceites (Sevilla, Spain) (1979), 30(2), 67-74, database is CAplus.

The influence of chem. structure on the biodegradability of 9 cationic surfactants in river water was studied. The effects of the structure of the hydrophilic and other secondary groups and the number and length of alkyl chains and their nature were considered for typical cationic surfactants.

Grasas y Aceites (Sevilla, Spain) 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

Nguyen, Tong Hoang Oanh published the artcileStudy on characteristics of the cathodic adsorption stripping voltammetric effect in solution containing 4,4′-dinitrodiphenylamine and possibility of application in analysis, Name: Bis(4-nitrophenyl)amine, the publication is Tap Chi Phan Tich Hoa, Ly Va Sinh Hoc (2001), 6(3), 14-17, database is CAplus.

The authors report the researched results of properties of cathodic adsorption stripping voltammetric effect in ammoniacal buffer solution containing 4,4′-dinitrodiphenylamine by square wave voltammetry using hanging mercury drop electrode. With the high sensibility the method can be applied for determination of 4,4′-dinitrodiphenylamine in the other nitrocellulose materials.

Tap Chi Phan Tich Hoa, Ly Va Sinh Hoc published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Name: Bis(4-nitrophenyl)amine.

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

Nguyen, Tong Hoang Oanh published the artcileInfluence of nature and organic solvent on kinetics and depolarization mechanism of dephenylamine nitro derivatives, Recommanded Product: Bis(4-nitrophenyl)amine, the publication is Tap Chi Hoa Hoc (2003), 41(3), 18-24, database is CAplus.

In this paper we report the research results on influence of nature and ratios organic solvents in ammonium buffer on kinetics and mechanism of electrochem. depolarization of diphenylamine nitro derivatives like 2-nitrodiphenylamine, 4,4′-dinitrodiphenylamine and 2,4,4′-trinitrodiphenylamine aimed to clarify the nature of electrode process and find out the optimal condition for analyze them by square voltamperometry with hanging mercury drop electrode.

Tap Chi Hoa Hoc published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Recommanded Product: Bis(4-nitrophenyl)amine.

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

Nguyen, Tong Hoang Oanh published the artcileStudy on influence of 2-nitrodiphenylamine and some different diphenylamine nitro derivatives on polarographic catalytic current in solution containing Co²⁺-NO₂^–, Formula: C12H9N3O4, the publication is Tap Chi Phan Tich Hoa, Ly Va Sinh Hoc (2002), 7(2), 57-61, database is CAplus.

The effect of nitro-substituted diphenylamine derivatives including 2-nitrodiphenylamine (2-NDPA), 4,4′-dinitrodiphenylamine (4,4′-DNDPA), and 2,4,4′-trinitrodiphenylamine (2,4,4′-TNDPA) on polarog. catalytic current in solution containing Co²⁺-NO₂^– was studied by cathodic adsorption stripping voltammetric method. All the nitro-substituted diphenylamines showed catalytic activation effect in solution containing Co²⁺-NO₂^–. The capability of these diphenylamine derivatives to form intermediate complexes that have catalytic activity and electrochem. adsorption between ions Co²⁺-NO₂^– ions with organic ligands was dependent on the type of the diphenylamine compounds

Tap Chi Phan Tich Hoa, Ly Va Sinh Hoc published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Formula: C12H9N3O4.

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

Peterson, John R. published the artcileCerium(IV)-induced nitration of cinnamic acids. Novel remote electrophilic substitution, Quality Control of 16909-09-4, the publication is Canadian Journal of Chemistry (1988), 66(7), 1670-4, database is CAplus.

The treatment of (E)-3,4-(MeO)₂C₆H₃CH:CHCO₂H with (NH₄)Ce(NO₃)₆ in CF₃CO₂H afforded 79% (E)-4,5,2-(MeO)₂(O₂N)C₆H₂CH:CHNO₂ (I). The unusual ipso substitution of the CO₂H moiety by NO₂ illustrated a new reaction manifold of Ce(IV). Four cinnamic acids were similarly nitrated to give products analogous to I, though in only 3-39% yields. The bidentate nitrato structure of the metal salt is believed to account for the nitrating ability of this system.

Canadian Journal of Chemistry published new progress about 16909-09-4. 16909-09-4 belongs to catalysis-chemistry, auxiliary class Alkenyl,Carboxylic acid,Benzene,Ether, name is (E)-3-(2,4-Dimethoxyphenyl)acrylic acid, and the molecular formula is C11H12O4, Quality Control of 16909-09-4.

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