Category: chlorides-buliding-blocks

Yan, Dingyuan published the artcileA selenium-catalysed para-amination of phenols, SDS of cas: 145349-62-8, the publication is Nature Communications (2018), 9(1), 1-9, database is CAplus and MEDLINE.

Se-catalyzed para-amination of phenols was reported while, in contrast, the reactions with sulfur donors were stoichiometric. A catalytic amount of phenylselenyl bromide smoothly converts N-aryloxyacetamides to N-acetyl p-aminophenols. When the para position was substituted (for example, with tyrosine), the dearomatization occurred and 4,4-disubstituted cyclodienone products were obtained. A combination of exptl. and computational studies was conducted and suggested the weaker Se-N bond plays a key role in the completion of the catalytic cycle. Our method extends the selenium-catalyzed processes to the functionalization of aromatic compounds Finally, the mild nature of the para-amination reaction was demonstrated by generating an AIEgen 2-(2′-hydroxyphenyl)benzothiazole (HBT) product in a fluorogenic fashion in a PBS buffer.

Nature Communications published new progress about 145349-62-8. 145349-62-8 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids, name is 2-Chloro-4-methylphenylboronic acid, and the molecular formula is C6H4ClNO2, SDS of cas: 145349-62-8.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Ma, Xufeng published the artcileMixed Alkyl/Aryl Diphos Ligands for Iron-Catalyzed Negishi and Kumada Cross Coupling Towards the Synthesis of Diarylmethane, SDS of cas: 939-99-1, the publication is ChemCatChem (2021), 13(24), 5134-5140, database is CAplus.

Mixed alkyl/aryl diphos ligands have been prepared and their application in iron-catalyzed cross coupling of benzylic chlorides with diaryl zinc (Negishi) or aryl Grignard reagents (Kumada) towards the synthesis of diarylmethane has been evaluated. The iron-diphos catalytic system exhibited the enhanced activity and selectivity in the two coupling reactions. The electron-rich mixed PPh₂/PCy₂ ligands outperformed their sym. PPh₂ congeners, and led to decreased homocoupling byproduct formation. It indicates that the electronic effect of the ligands plays an important role in the catalytic performance. The Fe catalyst bearing an electron-rich PCy₂ substituent and a sterically demanding tert-Bu on ethene backbone exhibited the best catalytic performance and good functional group tolerance in the two cross coupling reactions.

ChemCatChem published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C8H6ClF3, SDS of cas: 939-99-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Chen, Jinyi published the artcileDensity, viscosity, and saturated vapour pressure of 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene, HPLC of Formula: 350-30-1, the publication is Journal of Chemical Thermodynamics (2021), 106337, database is CAplus.

D. and viscosity data of pure 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene were obtained in temperature range from 318.15 K to 348.15 K at the local atm. pressure of 99.7 kPa. The value of corresponding saturated vapor pressure of two isomers were determined in the temperature range of 409 K to 517 K. The relationship between temperature and d. can be well correlated by the linear equation. The viscosity data was well described by the Litovitz, Ghatee, VFT, and Andrade equations, and the calculated value by the VFT equation is consistent with the measured data. Both the Antoine and Riedel equations can accurately describe the relationship between saturated vapor pressure and temperature of 3-chloro-4-fluoronitrobenzene and 3-chloro-2-fluoronitrobenzene, which can meet the requirements for chem. design. In addition, the thermal expansion coefficient was determined based on the d. data, and the molar vaporisation enthalpy of two isomers was evaluated using the Clausius-Clapeyron equation.

Journal of Chemical Thermodynamics published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, HPLC of Formula: 350-30-1.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Huang, Benhua published the artcileSynthesis of mesoporous zirconium-containing silicates and their application for catalytic asymmetric addition of diethylzinc to aldehydes, Product Details of C10H15ClO3S, the publication is Journal of Porous Materials (2017), 24(4), 867-879, database is CAplus.

A series of mesoporous zirconium-containing silicates were prepared in sol-gel, which were further functionalized by chiral sulfonyl chloride and proline for catalytic asym. addition of diethylzinc to aldehydes. These materials had good porosities, hexagonal symmetries and internal chiralities. Moreover, significant morphol. variations were observed when preparative conditions were changed. These materials also showed good to excellent enantioselectivities in catalysis, and there was chiral induction synergy between silicate matrix and attached ligand. Recycling of catalyst was tested, and promising results were obtained. This study would contribute to the design of mesoporous chiral catalysts.

Journal of Porous Materials published new progress about 21286-54-4. 21286-54-4 belongs to chlorides-buliding-blocks, auxiliary class Chiral,Chloride,Sulfonyl chlorides,Aliphatic cyclic hydrocarbon,Ketone, name is ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, and the molecular formula is C10H15ClO3S, Product Details of C10H15ClO3S.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Brovko, V. S. published the artcileHydrosilylation of unsaturated compounds in the presence of thiourea complexes of platinum(II) and palladium(II), Related Products of chlorides-buliding-blocks, the publication is Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation) (1987), 60(11), 2554-6, database is CAplus.

Treating 1-hexene or PhCCH with MeSiHCl₂ in the presence of the title catalysts, e.g., [Pt(NH₂CSNH₂)₄][BPh₄]₂ (I), cis-[Pt(PhNCSNHR)₂]Cl₂ (II, R = α-pyridyl), [Pd(PhNHCSNHPh)₄]²⁺ (bound on ion-exchange resin KRS-20P), gave BuCH₂CH₂SiCl₂Me or E-PhCH:CHSiCl₂Me, resp., with nearly 100% selectivity and 90-100% yields with I or II as catalysts.

Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation) published new progress about 14799-94-1. 14799-94-1 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(hexyl)(methyl)silane, and the molecular formula is C7H16Cl2Si, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Gerashchenko, I. I. published the artcileCompositions of highly dispersed silica with trypsin and a cationic surfactant obtained by a mechanosorption method, Name: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Pharmaceutical Chemistry Journal (Translation of Khimiko-Farmatsevticheskii Zhurnal) (2001), 35(2), 75-77, database is CAplus.

As part of the effort to develop a technol. for enzyme-containing drug compositions, the effect of cationic surfactants on the stability of trypsin comminuted jointly with a highly dispersed silica in a ball mill was examined The experiment used com. crystalline trypsin with a specific activity of not less than 10 TU/g, a highly dispersed silica in the form of Aerosil A-300 grade, and pharmacopeial preparations of ethonium and decamethoxine. Results indicate that the preliminary incubation of ethonium with trypsin results in a significant stabilization of the enzyme. Based on the results, the high enzymic activity retained in the products of mechanochem. processing of trypsin compositions with highly dispersed silica and cationic surfactant may be explained by the stabilizing action of the latter component. The technol. of obtaining mech. dispersed products with preset properties must include two sequential stages, namely, the initial mechanosorption immobilization of a cationic surfactant on the highly dispersed silica surface, followed by the mechanochem. processing of this modified carrier with the enzyme.

Pharmaceutical Chemistry Journal (Translation of Khimiko-Farmatsevticheskii Zhurnal) published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, Name: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Nosach, L. V. published the artcileAdsorption modification of finely divided silica with nonvolatile organic compounds in a gaseous dispersion medium, COA of Formula: C38H74Cl2N2O4, the publication is Fizika i Khimiya Tverdogo Tila (2006), 7(3), 540-543, database is CAplus.

An adsorption modification has been examined of high disperse silica with polymers an non-volatile organic compounds in a gaseous dispersion medium. This method has been shown to be more effective one than that of liquid phase impregnation. The solvation of modificator mols. has been found to be the main factor governing the process of modifying high disperse silica with polymers and bioactive compounds

Fizika i Khimiya Tverdogo Tila published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, COA of Formula: C38H74Cl2N2O4.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Kovalchuk, Valentine published the artcileNaturally drug-loaded chitin: isolation and applications, Category: chlorides-buliding-blocks, the publication is Marine Drugs (2019), 17(10), 574, database is CAplus and MEDLINE.

Naturally occurring three-dimensional (3D) biopolymer-based matrixes that can be used in different biomedical applications are sustainable alternatives to various artificial 3D materials. For this purpose, chitin-based structures from marine sponges are very promising substitutes. Marine sponges from the order Verongiida (class Demospongiae) are typical examples of demosponges with well-developed chitinous skeletons. In particular, species belonging to the family Ianthellidae possess chitinous, flat, fan-like fibrous skeletons with a unique, microporous 3D architecture that makes them particularly interesting for applications. In this work, we focus our attention on the demosponge Ianthella flabelliformis (Linnaeus, 1759) for simultaneous extraction of both naturally occurring (“ready-to-use”) chitin scaffolds, and biol. active bromotyrosines which are recognized as potential antibiotic, antitumor, and marine antifouling substances. We show that selected bromotyrosines are located within pigmental cells which, however, are localized within chitinous skeletal fibers of I. flabelliformis. A two-step reaction provides two products: treatment with methanol extracts the bromotyrosine compounds bastadin 25 and araplysillin-I N20 sulfamate, and a subsequent treatment with acetic acid and sodium hydroxide exposes the 3D chitinous scaffold. This scaffold is a mesh-like structure, which retains its capillary network, and its use as a potential drug delivery biomaterial was examined for the first time. The results demonstrate that sponge-derived chitin scaffolds, impregnated with decamethoxine, effectively inhibit growth of the human pathogen Staphylococcus aureus in an agar diffusion assay.

Marine Drugs published new progress about 38146-42-8. 38146-42-8 belongs to chlorides-buliding-blocks, auxiliary class Achiral Phase-Transfer Catalysts, name is N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, and the molecular formula is C38H74Cl2N2O4, Category: chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Szeto, Judy published the artcileMulti-step continuous flow synthesis of fluconazole, Related Products of chlorides-buliding-blocks, the publication is Journal of Flow Chemistry (2019), 9(1), 35-42, database is CAplus.

The development of a flow chem. approach to the anti-fungal fluconazole is described. A continuous, two-reactor, three-step synthesis of fluconazole from 2-chloro-2′,4′-difluoroacetophenone was achieved with no intermediate purification The synthesis has been successfully demonstrated on a Vaportec com. flow chem. system.

Journal of Flow Chemistry published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C10H16O2, Related Products of chlorides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics

Carcache, David A. published the artcileOptimizing a Weakly Binding Fragment into a Potent RORγt Inverse Agonist with Efficacy in an in Vivo Inflammation Model, Application of 3-Chloro-4-fluoronitrobenzene, the publication is Journal of Medicinal Chemistry (2018), 61(15), 6724-6735, database is CAplus and MEDLINE.

The transcription factor RORγt is an attractive drug-target due to its role in the differentiation of IL-17 producing Th17 cells that play a critical role in the etiopathol. of several autoimmune diseases. Identification of starting points for RORγt inverse agonists with good properties has been a challenge. We report the identification of a fragment hit and its conversion into a potent inverse agonist through fragment optimization, growing and merging efforts. Further anal. of the binding mode revealed that inverse agonism was achieved by an unusual mechanism. In contrast to other reported inverse agonists, there is no direct interaction or displacement of helix 12 observed in the crystal structure. Nevertheless, compound 9 proved to be efficacious in a delayed-type hypersensitivity (DTH) inflammation model in rats.

Journal of Medicinal Chemistry published new progress about 350-30-1. 350-30-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Nitro Compound,Benzene, name is 3-Chloro-4-fluoronitrobenzene, and the molecular formula is C6H3ClFNO2, Application of 3-Chloro-4-fluoronitrobenzene.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics