Month: December 2022

Sawama, Yoshinari published the artcileH-D Exchange Deuteration of Arenes at Room Temperature, Formula: C13H10F2, the publication is Organic Process Research & Development (2019), 23(4), 648-653, database is CAplus.

Arenes underwent C-H deuteration reactions with D₂O in the presence of Pt/C, Ir/C, or combinations of both catalysts in isopropanol/D₂O under argon at ambient temperature to yield arenes deuterated at the arene C-H bonds.

Organic Process Research & Development published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, Formula: C13H10F2.

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

Inada, Akira published the artcileStudies on crude drugs effective on growth of Helicobacter pylori. Growth inhibitors in Kaempferiae Rhizoma, Related Products of catalysis-chemistry, the publication is International Congress Series (1998), 319-326, database is CAplus.

Et 4′-methoxycinnamate and 4′-methoxycinnamic acid were isolated from Kaempferiae Rhizoma (rhizomes of Kaempferia galanga) as growth inhibitors against Helicobacter pylori. The inhibitory effects of related compounds were also examined Structure-activity relationships are discussed.

International Congress Series 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, Related Products of catalysis-chemistry.

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

Shibuya, Isao published the artcileThe synthesis of heteroaromatic cations containing sulfur or selenium atoms, Computed Properties of 6972-05-0, the publication is Bulletin of the Chemical Society of Japan (1987), 60(7), 2686-8, database is CAplus.

Oxidative cyclocondensation of Me₂NCCl:X⁺CClNMe₂ Cl^– (I; X = N, CH) with NaSH or NaSeH gave 43-95% heteroaromatic cations II (X = N, CH; X¹ = S, Se). Cyclocondensation of I with RCX¹NH₂ (R = Me₂N, Ph, pyrrolidino; X¹ = S, Se) gave 44-73% 6-membered heteroaromatic cations III.

Bulletin of the Chemical Society of Japan published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C19H17N2NaO4S, Computed Properties of 6972-05-0.

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

Hoshi, Takashi published the artcileFirst C₂ Symmetrical Siloles: Synthetic, Structural, and Photophysical Studies of 7-Sila-7H-dibenzo[c,g]fluorenes, Category: catalysis-chemistry, the publication is Organometallics (2000), 19(22), 4483-4487, database is CAplus.

The syntheses of 7-sila-7H-dibenzo[c,g]fluorenes 1 were effected via dilithiation of 2,2′-dibromo-1,1′-binaphthyl (2) followed by cyclization of the resulting dianion with dihalosilanes: Me₂SiCl₂, Ph₂SiCl₂, and Ph₂SiF₂. The x-ray structural anal. of 7-sila-7,7-diphenyl-7H-dibenzo[c,g]fluorene (1b) provided the first geometrical parameters of the 7-sila-7H-dibenzo[c,g]fluorene derivative in which the silole skeleton was twisted in the C₂ sym. conformation due to the significant steric repulsion of the binaphthyl group fixed within the van der Waals radii. The photophys. study and semiempirical PM3 calculation suggested the presence of significant ¦Ò*-¦Ð* conjugation in the LUMO of the 7-sila-7H-dibenzo[c,g]fluorene 1 like a silole.

Organometallics 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, Category: catalysis-chemistry.

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

Moriguchi, Michihisa published the artcileThe copper chelator trientine has an antiangiogenic effect against hepatocellular carcinoma, possibly through inhibition of interleukin-8 production, Synthetic Route of 38260-01-4, the publication is International Journal of Cancer (2002), 102(5), 445-452, database is CAplus and MEDLINE.

Recent studies have revealed that copper is an important cofactor for several angiogenic agents. We examined the antiangiogenic effect against hepatocellular carcinoma (HCC) of the copper chelator trientine, especially focusing on the relationship between copper and interleukin-8 (IL-8), a potent angiogenic factor produced by hepatoma cells. HuH-7 hepatoma cells were transplanted into nude mice and the growth of xenograft tumors was compared to and without administration of trientine. Using the resected tumor, microvessel d., apoptotic potential and proliferative activity were analyzed histol. and IL-8 mRNA was semiquantified by RT-PCR. In addition, HuH-7 cells were cultured in control medium, medium supplemented with copper, medium supplemented with trientine and medium supplemented with both copper and trientine. Human IL-8 levels were measured in the supernatants by ELISA. Using the extracts from cultured cells, IL-8 mRNA was semiquantified by RT-PCR. Trientine suppressed the growth of xenograft tumors significantly. Histol., apoptotic potential was increased significantly and microvessel d., decreased. The production of IL-8 from the tumor was suppressed by trientine. In vitro, IL-8 production by HuH-7 cells in copper-containing medium was significantly greater than that in copper-free medium, and this effect was weakened when trientine was added. However, no significant change was apparent when trientine was added to the medium alone. In conclusion, the chelating effect of trientine prevented copper from functioning as a cofactor in angiogenesis, which resulted in reduced IL-8 production from HuH-7 cells.

International Journal of Cancer published new progress about 38260-01-4. 38260-01-4 belongs to catalysis-chemistry, auxiliary class Chelating Agents, name is N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride, and the molecular formula is C6H20Cl2N4, Synthetic Route of 38260-01-4.

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

Kamata, Ryo published the artcileAgonistic effects of diverse xenobiotics on the constitutive androstane receptor as detected in a recombinant yeast-cell assay, Application In Synthesis of 1798-04-5, the publication is Toxicology In Vitro (2018), 335-349, database is CAplus and MEDLINE.

The constitutive androstane receptor (CAR) is a nuclear receptor and transcription factor regulating proteins involved in xenobiotic metabolism Agonist activation of the CAR can trigger metabolic activation and toxification as well as detoxification and clearance; accordingly, xenobiotic substances acting as CAR ligands may pose a threat to human and animal health. The authors used yeast cells transduced with the human CAR and the response pathway to measure the CAR-agonistic activities of 549 synthetic or natural compounds: 216 of the tested compounds exhibited CAR-agonistic effects. Eighty-four percent of CAR-activating compounds were aromatic compounds, and >65% of these active compounds were aromatic hydrocarbons, bisphenols, monoalkyl phenols, phthalates, styrene dimers, di-Ph ethers, organochlorines, and organophosphates. The ten most potent compounds were 4-tert-octylphenol (4tOP; reference substance), 4-nonylphenol, diethylstilbestrol, benzyl Bu phthalate, 2-(4-hydroxyphenyl)-2,4,4-trimethylchroman, o,p’-DDT, methoxychlor, di-Pr phthalate, hexestrol, and octachlorostyrene. The activities of these nine non-reference compounds exceeded 10% of the 4tOP activity. Anal. of para-monoalkyl phenols suggests that branching of the alkyl group and chlorination at the ortho position raises potency. This study provides critical information for identifying the potential of CAR-mediated toxic hazards and for understanding the relevant mechanism.

Toxicology In Vitro 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, Application In Synthesis of 1798-04-5.

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

Kusaka, Eishi published the artcileRecovery of fine particles of rare earth minerals by liquid-liquid extraction method, Safety of Dodecylamineacetate, the publication is Sozai Busseigaku Zasshi (1992), 5(1), 63-73, database is CAplus.

Fine particles of monasite, xenotime, and zircon were recovered from beach sand by liquid-liquid extraction in an isooctane-water system in the presence of surfactants (Na oleate, Na dodecylbenzenesulfonate, Na dodecylsulfate, dodecylammonium acetate and dodecylammonium chloride). Zeta potential variations were measured as a function of pH for each of these minerals to determine its isoelec. point for selecting the optimum mineral recovery conditions.

Sozai Busseigaku Zasshi 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

Hu, Bo published the artcileRecovery of fine mineral particles by liquid-liquid extraction, Computed Properties of 2016-56-0, the publication is Shigen to Sozai (1993), 109(1), 17-22, database is CAplus.

The effect of organic phases on the recovery of fine quartz particles was studied using dodecylamine acetate (DAA) as a collector in a liquid-liquid extraction process at various pH values. Three kinds of organic solvents, i.e., BuOH, MeCOCH₂CHMe₂, and isooctane, were used as the oil phase. The interactions between the oil droplets and the quartz surface at different pH values and DAA concentrations were examined through related experiments on oil/water interfacial tension, contact angle, and interfacial free energy for contact. Good correlation was obtained between the quartz recovery and these variables. The recovery depended not only on the pH and the collector concentration, but also on the properties of the oil phase.

Shigen to Sozai 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

Hu, B. published the artcileThe effect of organic solvents on the recovery of fine mineral particles by liquid-liquid extraction, Product Details of C14H31NO2, the publication is Minerals Engineering (1993), 6(7), 731-42, database is CAplus.

The cooperative effect of organic solvents in recovering fine mineral particles by liquid-liquid extraction was studied. With dodecylamine acetate as a collector, iso-octane as the main oil phase, and n-butanol and Me iso-Bu ketone as sub-oil phases, the cooperative effect between polar neutral organic mols. and non-polar hydrocarbon oil droplets on the extraction of fine quartz from the aqueous phase into the oil phase was estimated The oil/water interfacial tensions and contact angles of oil droplets on a quartz surface in water were measured. The neutral organic mols. made extraction of the fine quartz particles more efficient, i.e., by increasing the recovery of quartz in the oil phase and decreasing the collector addition Co-adsorption of the neutral organic mols. with collector ions plays the most important role.

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 C14H31NO2, Product Details of C14H31NO2.

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

Hu, B. published the artcileA study on the separation of fine cassiterite and quartz by liquid-liquid extraction, Application In Synthesis of 2016-56-0, the publication is Publications of the Australasian Institute of Mining and Metallurgy (1993), 3/93(XVIII International Mineral Processing Congress), 727-33, database is CAplus.

Fine cassiterite and quartz were separated by liquid-liquid extraction using iso-octane as an oil phase, dodecylamine acetate (DAA) as a collector, and sodium chloride as a depressant. With regard to the distribution of fine cassiterite and quartz between oil and aqueous phases, the effect of DAA was investigated in terms of pH, DAA and NaCl concentrations, zeta potential, and adsorption d. A maximum recovery of cassiterite in the oil phase was obtained with pH around 6.0, DAA concentration of 1.0 ¡Á 10^-5 mol/L, and NaCl addition of 0.1 mol/L. In these conditions of liquid-liquid extraction, most of the fine quartz remained in the aqueous phase. Thus NaCl was an effective depressant for fine quartz under optimum conditions. A series of separation tests by liquid-liquid extraction was then conducted for the mixed samples (6.0% Sn) of cassiterite and quartz. By a single separating process, the recovery of cassiterite in the oil phase was about 92% with a grade of 27% Sn. The same results could also be obtained by using kerosine in place of iso-octane as the oil phase.

Publications of the Australasian Institute of Mining and 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, Application In Synthesis of 2016-56-0.

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