Catalysis-chemistry

Koch, Bjoern E. V. published the artcileA quantitative in vivo assay for craniofacial developmental toxicity of histone deacetylases, Application of 2-Butylhexanoic acid, the publication is Toxicology Letters (2021), 20-25, database is CAplus and MEDLINE.

Many bony features of the face develop from endochondral ossification of preexisting collagen-rich cartilage structures. The proper development of these cartilage structures is essential to the morphol. formation of the face. The developmental programs governing the formation of the pre-bone facial cartilages are sensitive to chem. compounds that disturb histone acetylation patterns and chromatin structure. We have taken advantage of this fact to develop a quant. morphol. assay of craniofacial developmental toxicity based on the distortion and deterioration of facial cartilage structures in zebrafish larvae upon exposure to increasing concentrations of several well-described histone deacetylase inhibitors. In this assay, we measure the angle formed by the developing ceratohyal bone as a precise, sensitive and quant. proxy for the overall developmental status of facial cartilages. Using the well-established developmental toxicant and histone deacetylase-inhibiting compound valproic acid along with 12 structurally related compounds, we demonstrate the applicability of the ceratohyal angle assay to investigate structure-activity relationships.

Toxicology Letters published new progress about 3115-28-4. 3115-28-4 belongs to catalysis-chemistry, auxiliary class Aliphatic Chain, name is 2-Butylhexanoic acid, and the molecular formula is C10H20O2, Application of 2-Butylhexanoic acid.

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

Uyank, Sultan published the artcileMono 1,4-diaza-2,3-diborinane and bicyclic species: Synthesis and structures, HPLC of Formula: 140-28-3, the publication is Polyhedron (2017), 145-151, database is CAplus.

The derivatives of diazadiborinane containing a ring with two nitrogen atoms and two boron atoms are a class of 6-membered heterocyclic compounds Previous studies conducted on the synthesis of diazadiborinane showed that their structures are highly unstable and that some prepared isomer mixtures have no defined mono structure. New monocyclic 1,4-diaza-2,3-diborinane derivatives B₂{1,4-(NAr)₂C₂H₄} and the new bicyclic (B₂{1,2-(NAr)₂C₂H₄}₂) isomer were prepared The structures of these new derivatives were characterized using NMR (NMR) spectroscopy. The mol. and crystal structures of monocyclic and bicyclic species were determined using the single crystal X-ray diffraction technique.

Polyhedron published new progress about 140-28-3. 140-28-3 belongs to catalysis-chemistry, auxiliary class Benzenes, name is N1,N2-Dibenzylethane-1,2-diamine, and the molecular formula is C10H10O2, HPLC of Formula: 140-28-3.

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

Scott, Jason A. published the artcileOptimization of a Pyrimidinone Series for Selective Inhibition of Ca²⁺/Calmodulin-Stimulated Adenylyl Cyclase 1 Activity for the Treatment of Chronic Pain, Product Details of C8H8O2, the publication is Journal of Medicinal Chemistry (2022), 65(6), 4667-4686, database is CAplus and MEDLINE.

Adenylyl cyclase type 1 (AC1) is involved in signaling for chronic pain sensitization in the central nervous system and is an emerging target for the treatment of chronic pain. AC1 and a closely related isoform AC8 are also implicated to have roles in learning and memory signaling processes. Our team has carried out cellular screening for inhibitors of AC1 yielding a pyrazolyl-pyrimidinone scaffold with low micromolar potency against AC1 and selectivity vs. AC8. Structure-activity relationship (SAR) studies led to analogs with cellular IC₅₀ values as low as 0.25 ¦ÌM, selectivity vs. AC8 and other AC isoforms as well as other common neurol. targets. A representative analog displayed modest antiallodynic effects in a mouse model of inflammatory pain. This series represents the most potent and selective inhibitors of Ca²⁺/calmodulin-stimulated AC1 activity to date with improved drug-like physicochem. properties making them potential lead compounds for the treatment of inflammatory pain.

Journal of Medicinal Chemistry published new progress about 118-90-1. 118-90-1 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Natural product, name is 2-Methylbenzoic acid, and the molecular formula is C14H15BF3NO2, Product Details of C8H8O2.

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

Medoks, G. V. published the artcileReaction of phenylmagnesium bromide with silicon tetrafluoride, Application of Difluorodiphenylsilane, the publication is Zhurnal Obshchei Khimii (1956), 113-15, database is CAplus.

Passage of SiF₄ into PhMgBr solution from 70.6 g. PhBr with ice cooling gave a reaction mixture which formed 2 liquid layers and some solid; after 24 hrs. the mixture was treated with cooling with 11% HCl, yielding 2.73 g. Ph₂SiF₂, b₂₈ 247-8¡ã (2.48 g. of less pure product also formed), and 59.5% Ph₃SiF, b₃₀ 245-50¡ã, m. 64¡ã. PhMgBr from 2.57 g. Mg was treated with SiF₄ as above for 20 min., and the 2-layered mixture was treated with an equal amount of PhMgBr solution as above, freed of Et₂O, and heated 1 hr. at 175-80¡ã, yielding after usual treatment 8.4 g. Ph₄Si (I), m. 230.5¡ã. In 5 days at room temperature PhMgBr and Ph₃SiF (4.17 g.) gave 0.85 g. I; at 180-2¡ã a 93% yield was obtained.

Zhurnal Obshchei Khimii 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, Application of Difluorodiphenylsilane.

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

Li, Yuehui published the artcileSelective Methylation of Amines with Carbon Dioxide and H₂, Computed Properties of 2909-77-5, the publication is Angewandte Chemie, International Edition (2013), 52(46), 12156-12160, database is CAplus and MEDLINE.

Preparation of N-methylated products via ruthenium-catalyzed methylation of both aromatic and aliphatic amines using carbon dioxide/hydrogen is described. E.g., in presence of Ru(acac)₃, MeC(CH₂PPh₂)₃, and methanesulfonic acid, methylation of 4-ClC₆H₄NH₂ with CO₂/H₂ gave 99% 4-ClC₆H₄NMe₂.

Angewandte Chemie, International Edition published new progress about 2909-77-5. 2909-77-5 belongs to catalysis-chemistry, auxiliary class Amine,Benzene, name is 2,6-Diisopropyl-N,N-dimethylaniline, and the molecular formula is C14H23N, Computed Properties of 2909-77-5.

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

Mamiya, Mitsuo published the artcileSelective flotation of zinc hydroxide from gypsum precipitated in the neutralization process, Name: Dodecylamineacetate, the publication is Nippon Kogyo Kaishi (1986), 102(1186), 859-64, database is CAplus.

Floatability tests for Zn hydroxide and gypsum, both chem. precipitated, were carried out by using dodecylammonium acetate or Na dodecylsulfate as a collector with or without addition of soluble starch or Na silicate as a depressant of Zn hydroxide. Both precipitates are relatively floatable with either collector at pH 7-12, without depressant addition The addition of Na silicate depressed Zn hydroxide when Na dodecylsulfate was used. Selective flotation of gypsum from the mixture of both precipitates was successful by depressing Zn hydroxide with Na silicate. For synthetic mine water containing Zn²⁺ 1000, SO₄^2- 7328, and Ca²⁺ 603 mg/L, the lime precipitation-selective flotation method was investigated, with 90% gypsum recovery in the froth and 87% recovery of Zn hydroxide in the tailing solution

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 C14H31NO2, Name: Dodecylamineacetate.

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

Saima published the artcileBiocatalytic synthesis of diaryl disulphides and their bio-evaluation as potent inhibitors of drug-resistant Staphylococcus aureus, Category: catalysis-chemistry, the publication is Drug Development Research (2019), 80(1), 171-178, database is CAplus and MEDLINE.

Staphylococcus aureus is a WHO Priority II pathogen for its capability to cause acute to chronic infections and to resist antibiotics, thus severely impacting healthcare systems worldwide. In this context, it is urgently desired to discover novel mols. to thwart the continuing emergence of antimicrobial resistance. Disulfide containing small mols. has gained prominence as antibacterials. As their conventional synthesis requires tedious synthetic procedure and sometimes toxic reagents, a green and environmentally benign protocol for their synthesis has been developed through which a series of mols. were obtained and evaluated for antibacterial activity against ESKAPE pathogen panel. The hit compound was tested for cytotoxicity against Vero cells to determine its selectivity index and time-kill kinetics was determined The activity of hit was determined against a panel of S. aureus multi-drug resistant clin. isolates. Also, its ability to synergize with FDA approved drugs was tested as was its ability to reduce biofilm. We identified bis(2-bromophenyl) disulfide (2t) as possessing equipotent antimicrobial activity against S. aureus including MRSA and VRSA strains. Further, 2t exhibited a selectivity index of 25 with concentration-dependent bactericidal activity, synergized with all drugs tested and significantly reduced preformed biofilm. Taken together, 2t exhibits all properties to be positioned as novel scaffold for anti-staphylococcal therapy.

Drug Development Research published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C14H10O4S2, Category: catalysis-chemistry.

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

Wang, Xiaotian published the artcileSNHG3 could promote prostate cancer progression through reducing methionine dependence of PCa cells, Application In Synthesis of 63-68-3, the publication is Cellular & Molecular Biology Letters (2022), 27(1), 13, database is CAplus and MEDLINE.

In recent years, morbidity and mortality of prostate cancer (PCa) have increased dramatically, while mechanistic understanding of its onset and progression remains unmet. LncRNA SNHG3 has been proved to stimulate malignant progression of multiple cancers, whereas its functional mechanism in PCa needs to be deciphered. In this study, our anal. in the TCGA database revealed high SNHG3 expression in PCa tissue. Further anal. in starBase, TargetScan, and mirDIP databases identified the SNHG3/miR-152-3p/SLC7A11 regulatory axis. FISH was conducted to assess the distribution of SNHG3 in PCa tissue. Dual-luciferase reporter gene and RIP assays confirmed the relationship among the three objects. Next, qRT-PCR and western blot were conducted to measure expression levels of SNHG3, miR-152-3p, and SLC7A11. CCK-8, colony formation, Transwell, and flow cytometry were carried out to assess proliferation, migration, invasion, methionine dependence, apoptosis, and the cell cycle. It was noted that SNHG3 as a mol. sponge of miR-152-3p stimulated proliferation, migration, and invasion, restrained methionine dependence and apoptosis, and affected the cell cycle of PCa cells via targeting SLC7A11. Addnl., we constructed xenograft tumor models in nude mice and confirmed that knockdown of SNHG3 could restrain PCa tumor growth and elevate methionine dependence in vivo. In conclusion, our investigation improved understanding of the mol. mechanism of SNHG3 modulating PCa progression, thereby generating novel insights into clin. therapy for PCa.

Cellular & Molecular Biology Letters published new progress about 63-68-3. 63-68-3 belongs to catalysis-chemistry, auxiliary class Natural product, name is (S)-2-Amino-4-(methylthio)butanoic acid, and the molecular formula is C3H5BN2O2, Application In Synthesis of 63-68-3.

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

Bochmann, Manfred published the artcileChalcogenolato complexes of bismuth and antimony. Syntheses, thermolysis reactions, and crystal structure of Sb(SC₆H₂Prⁱ₃-2,4,6)₃, Category: catalysis-chemistry, the publication is Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1995), 1649-52, database is CAplus.

Sb(III) and Bi(III) complexes of sterically demanding arenechalcogenolato ligands, M(EC₆H₂R’₃-2,4,6)₃ (E = S or Se; M = Sb or Bi; R’ = Me, Prⁱ or Bu^t) were prepared by either protolysis of the amides M[N(SiMe₃)₂]₃ with arenechalcogenols, or from MCl₃ by halide exchange (M = Bi or Sb). The complexes are monomeric in the solid state and sublime readily. The crystal structure of Sb(SC₆H₂Prⁱ₃-2,4,6)₃ was determined by x-ray diffraction. The compound possesses a trigonal-pyramidal geometry, with Sb-S distances of 2.418(2)-2.438(2) ? and S-Sb-S angles of 94.69(7)-98.29(8)¡ã. Preliminary x-ray results on Bi(SeC₆H₂Prⁱ₃-2,4,6)₃ showed that the compounds of Sb and Bi are isostructural. Thermolytic decomposition of some of the compounds was carried out in the solid state. Compounds with R’ = Me or Prⁱ undergo reductive elimination to give elemental Bi or Sb, whereas the bulky selenolates M(SeC₆H₂Bu^t₃-2,4,6)₃ afford M₂Se₃.

Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry 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, Category: catalysis-chemistry.

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

Han, Xiaoyue published the artcileA near-infrared fluorescent probe for sensitive detection and imaging of sulfane sulfur in living cells and in vivo, Formula: C14H10O4S2, the publication is Biomaterials Science (2018), 6(3), 672-682, database is CAplus and MEDLINE.

Sulfane sulfur refers to ionized sulfur that is reversibly attached to other sulfur atoms in the form of 6-valence electrons (S⁰). Sulfane sulfur possesses stronger nucleophilicity and reducibility than hydrogen sulfide in a series of physiol. reactions, which probably makes sulfane sulfur the actual signal mol. in cells. Herein, we designed and synthesized a near-IR (NIR) fluorescent probe BD-diSH for sensitive detection and imaging of sulfane sulfur in living cells and in vivo. The probe BD-diSH is composed of two moieties: the fluorophore azo-BODIPY and the sulfane sulfur recognition unit, viz., 2-mercapto benzoate. BD-diSH displayed high sensitivity and selectivity towards sulfane sulfur. The mercapto group (-SH) of 2-mercapto benzoic acid can nucleophilically capture the sulfur atom of thiosulfoxide tautomers in sulfane sulfur to form -SSH. The group -SSH will immediately induce intramol. cyclization reaction and release the azo-BODIPY fluorophore to emit NIR fluorescence. The probe BD-diSH was successfully applied to detect and image sulfane sulfur in the cytoplasm of the living cells. The results illustrated that the endogenous and exogenous sulfane sulfur level changed depending on different cell lines. BD-diSH was also capable of imaging the level changes of sulfane sulfur in mice. The above applications make our new probe a potential chem. tool for the study of physiol. and pathol. functions of sulfur sulfide in living cells and in vivo.

Biomaterials Science published new progress about 119-80-2. 119-80-2 belongs to catalysis-chemistry, auxiliary class sulfides,Carboxylic acid,Benzene, name is 2,2′-Dithiodibenzoic acid, and the molecular formula is C14H10O4S2, Formula: C14H10O4S2.

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