Tag: M.W=200-250

Shander, Aryeh published the artcileDrug-induced anemia and other red cell disorders: a guide in the Ag of polypharmacy, Application of N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride, the publication is Current Clinical Pharmacology (2011), 6(4), 295-303, database is CAplus and MEDLINE.

A review. Several medications have been linked to red blood cell (RBC) disorders. The frequency of these side effects varies, depending on the condition, but they can be associated with significant morbidity and mortality. The problem is likely to exacerbate in aging populations with frequent comorbidities, proportional to the growing number of medications used. Notable drug-related RBC disorders include hemolytic anemia, megaloblastic anemia, sideroblastic anemia, polycythemia, methemoglobinemia, anemia of irritation/inflammation, and anemia caused by suppression of RBC production The list of medications that are associated with these disorders is long and includes many commonly-used drugs. This could pose a challenge in timely diagnosis and management of these disorders. Prior knowledge of the potential for drug-related RBC disorders and monitoring the patients who are being treated with medications known to cause RBC disorders are critical to ensure timely and effective response, should such adverse reactions occur.

Current Clinical Pharmacology 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 C8H12BNO2, Application of N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride.

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

Thangaraj, Baskaran published the artcileDiaminosilane-functionalized on silicate-stabilised hydrotalcite (MA-HTSi-DA): As potential catalyst for nitro-aldol condensation, Name: 1,2-Dimethoxy-4-(2-nitrovinyl)benzene, the publication is Journal of Molecular Catalysis A: Chemical (2015), 11-18, database is CAplus.

Diaminosilane was introduced into silicate-anion-intercalated hydrotalcite (HT-Si) using a post-synthesis method. The resulting functionalized materials possess surface basicity. The textural properties of the functionalized materials were systematically investigated through powder XRD, FTIR and MAS-NMR studies. The diamine-functionalized materials showed very good catalytic activity for the nitro-aldol condensation of benzaldehyde and nitromethane under solvent-free conditions. The materials showed comparable catalytic activity upon recycling.

Journal of Molecular Catalysis A: Chemical 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 C30H24BrCuN2P, Name: 1,2-Dimethoxy-4-(2-nitrovinyl)benzene.

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

Korn, D. published the artcileElectro-optic organic crystal silicon high-speed modulator, Category: catalysis-chemistry, the publication is IEEE Photonics Journal (2014), 6(2), 2700109/1-2700109/10, database is CAplus.

Silicon waveguides can be functionalized with an organic ¦Ö(2)-nonlinear cladding. This complements silicon photonics with the electro-optic (EO) effect originating from the cladding and enables functionalities such as pure phase modulation, parametric amplification, or THz-wave generation. Claddings based on a polymer matrix containing chromophores have been introduced, and their strong ¦Ö(2) nonlinearity has already been used to demonstrate ultralow power consuming modulators. However, these silicon-organic hybrid (SOH) devices inherit not only the advantageous properties; these polymer claddings require an alignment procedure called poling and must be operated well below their glass transition temperature This excludes some applications. In contrast, claddings made from organic crystals come with a different set of properties. In particular, there is no need for poling. This new class of claddings also promises stronger resilience to high temperatures, better long-term stability, and photo-chem. stability. We report on the deposition of an organic crystal cladding of N-benzyl-2-methyl-4-nitroaniline (BNA) on silicon-on-insulator (SOI) waveguides, which have a CMOS-like metal stack on top. Adhering to such an architecture, which preserves the principal advantage of using CMOS-based silicon photonic fabrication processes, permits the first demonstration of high-speed modulation at 12.5 Gbit/s in this material class, which proves the availability of the EO effect from BNA on SOI also for other applications.

IEEE Photonics Journal 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, Category: catalysis-chemistry.

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

Schmid, Kyle M. published the artcileA Self-Immolative Spacer That Enables Tunable Controlled Release of Phenols under Neutral Conditions, Product Details of C14H12O3, the publication is Journal of Organic Chemistry (2012), 77(9), 4363-4374, database is CAplus and MEDLINE.

A current challenge in the area of responsive materials is the design of reagents and polymers that provide controlled release of phenols in environments that are less polar than water. In these contexts, a mol. strategy that enables release of nearly any phenol with predictable and tunable rates and without complication from background hydrolysis would substantially increase the precision with which materials can be designed to respond to a particular signal. This Article addresses this problem at the fundamental level by describing the design, synthesis, and phys.-organic characterization of two small mol. self-immolative spacers that are capable of releasing phenols in organic and mixed organic-aqueous solutions The rate of release from these small mol. model systems is predictable and tunable, such that nearly any type of phenol, regardless of pK_a value, can be released in neutral solutions without complications from nonspecific background release due to hydrolysis. Furthermore, the release properties of the spacers can be predicted from bond length and conformation data (obtained from crystal structures). On the basis of these results, it should now be possible to incorporate these design elements into materials to enable precise response properties in environments that are not 100% aqueous

Journal of Organic Chemistry 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, Product Details of C14H12O3.

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

Masuya, Takahiro published the artcileDiscovery of novel oestrogen receptor ¦Á agonists and antagonists by screening a revisited privileged structure moiety for nuclear receptors, Product Details of C13H10F2, the publication is Scientific Reports (2019), 9(1), 1-11, database is CAplus and MEDLINE.

Bisphenol A (BPA) is used as an industrial raw material for polycarbonate plastics and epoxy resins; however, various concerns have been reported regarding its status as an endocrine-disrupting chem. BPA interacts not only with estrogen receptors (ERs) but constitutive androstane receptor, pregnane X receptor, and estrogen-related receptor ¦Ã (ERR¦Ã); therefore, the bisphenol structure represents a privileged structure for the nuclear-receptor superfamily. Here, we screen 127 BPA-related compounds by competitive-binding assay using [3H]oestradiol and find that 20 compounds bind to ERa with high affinity. We confirm most of these as ERa agonists; however, four compounds, including bisphenol M and bisphenol P act as novel antagonists. These structures harbor three benzene rings in tandem with terminal hydroxy groups at para-positions, with this tandem tri-ring bisphenol structure representing a novel privileged structure for an ERa antagonist. Addnl., we perform an ab initio calculation and develop a new clipping method for halogen bonding or non-covalent interaction using DV-Xa evaluation for biomols.

Scientific Reports 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, Product Details of C13H10F2.

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

Fujita, Toshio published the artcileA new substituent constant, ¦Ð, derived from partition coefficients, HPLC of Formula: 1798-04-5, the publication is Journal of the American Chemical Society (1964), 86(23), 5175-80, database is CAplus.

The partition coefficients between 1-octanol and water were determined for 203 mono- and disubstituted benzenes. From these values a substituent constant, ¦Ð, was calculated for 67 functional groups. The constant ¦Ð is defined as: ¦Ð = log Px – log P_H, where Px is the partition coefficient of a derivative and P_H is that of the parent compound ¦Ð was derived for many of the functions from 8 different systems: benzene, PhNO₂, PhNH₂, PhOH, benzyl alc., BzOH, phenylacetic acid, and phenoxyacetic acid. Although ¦Ð varies continuously for a given function depending on its electronic environment, the range over which it varies is not great. In certain of the systems, ¦Ð values are related by a simple linear expression.

Journal of the American Chemical Society 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

Soto, H. published the artcileSelective flotation of phosphates from dolomite using cationic collectors. I. Effect of collector and nonpolar hydrocarbons, Computed Properties of 2016-56-0, the publication is International Journal of Mineral Processing (1986), 16(1-2), 3-16, database is CAplus.

The flotation behavior of francolite and dolomite with a variety of cationic collectors was studied. Only primary amines were strong collectors of the phosphate mineral. Dolomite was also floatable with primary amines, but from a mixture of francolite and dolomite, the primary amines were uniquely selective towards the phosphate mineral. Adsorption studies carried out with individual minerals showed that the collector was strongly adsorbed on both dolomite and francolite. However, in a phosphate ore, primary amines were adsorbed mainly on the phosphate, indicating that a stronger interaction existed between the amine and francolite than between the amine and dolomite. The use of hydrocarbon oils was beneficial not only in reducing the collector requirements, but also in accelerating the flotation rates.

International Journal of Mineral Processing 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 C16H21N3O3S, Computed Properties of 2016-56-0.

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

Soto, H. published the artcileFlotation of apatite from calcareous ores with primary amines, COA of Formula: C14H31NO2, the publication is Minerals & Metallurgical Processing (1985), 2(3), 160-6, database is CAplus.

The role was studied of chem. reaction in the selective adsorption of primary amines on phosphate minerals. Kerosine decreases the collector requirement because the hydrocarbon is coadsorbed with the amine on the mineral surface. The heats of reaction of the aminium ions with phosphate, carbonate, and sulfate were measured. The primary amine ions react with the phosphate ions on the apatite surface because of the strong affinity of the 2 ions. If more amine than necessary to cover the apatite is added the amine is adsorbed by the carbonate and separation of apatite from carbonate mineral is more difficult.

Minerals & Metallurgical Processing 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 C4H6BrFO2, COA of Formula: C14H31NO2.

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

Claes, Pieter published the artcilePalladium(II)-Catalyzed Synthesis of 2H,3’H-Spiro[benzofuran-3,2′-naphthoquinones], Quality Control of 1798-04-5, the publication is Journal of Organic Chemistry (2013), 78(17), 8330-8339, database is CAplus and MEDLINE.

2H,3’H-Spiro[benzofuran-3,2′-naphthoquinones], constituting a new spiroheterocyclic skeleton, were synthesized starting from 2-aryloxymethyl-1,4-naphthoquinones by means of a palladium(II)-catalyzed reaction, which is a new spirocyclic transformation. Under optimal conditions, i.e. 10 mol % of palladium(II) acetate, 15 mol % of 3,5-dichloropyridine, and 5 mol % of trifluoroacetic acid in acetic acid at 110 ¡ãC, various 2H,3’H-spiro[benzofuran-3,2′-naphthoquinones] were synthesized in yields strongly dependent on the substitution pattern of the aryloxy group. Unsubstituted or ortho-substituted 2-aryloxymethyl-1,4-quinones were found to rearrange toward the corresponding 2-(4-hydroxyaryl)-1,4-quinones upon treatment with trifluoroacetic acid.

Journal of Organic 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, Quality Control of 1798-04-5.

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

Ueda, Naomi published the artcileImprovement of conservation for waterlogged woods using polyethylene glycol (PEG) (treatment with cationic surfactants), Recommanded Product: Dodecylamineacetate, the publication is Zairyo (1992), 41(461), 148-52, database is CAplus.

In the conventional polyethylene glycol (I) method for conservation of waterlogged wood, it is sometimes difficult for I to penetrate into the wood, depending on wood species or the degree of deterioration, and shrinkage (e.g., maximum 20 ? 30% in tangential direction) or warp of specimens occurs. In order to maintain its dimensions and mech. strength, Akagashi (Quercus?acuta?Thunb.) wood was treated with some cationic surfactants which were easily adsorbed on cellulose and thus lowered surface tension of water. With the surfactant treatment it was expected that possible shrinkage accompanied by water evaporation could be decreased. The wood samples were soaked in a dilute cationic surfactant solution, followed by immersion in I solution with gradual increase of its concentration The variations of dimension and weight were monitored periodically. The surfactant treatment allowed I to penetrate easily into waterlogged wood. Furthermore, it was noticed that the shrinkage and change in shape could be minimized, and the dimensions were maintained without any significant change. In addition, by using the present treatment, one can expect that the penetration time in PEG treatment will be shortened.

Zairyo 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 C18H25BN2O3, Recommanded Product: Dodecylamineacetate.

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