Author: Jessica.F

Naganawa, Yuki published the artcileA General and Selective Synthesis of Methylmonochlorosilanes from Di-, Tri-, and Tetrachlorosilanes, Application of Dichloro(hexyl)(methyl)silane, the publication is Organic Letters (2021), 23(2), 601-606, database is CAplus and MEDLINE.

Direct catalytic transformation of chlorosilanes into organosilicon compounds remains challenging due to difficulty in cleaving the strong Si-Cl bond(s). Herein, it is reported the palladium-catalyzed cross-coupling reaction of chlorosilanes with organoaluminum reagents. A combination of [Pd(C₃H₅)Cl]₂ and DavePhos ligand catalyzed the selective methylation of various dichlorosilanes, trichlorosilanes, and tetrachlorosilane to give the corresponding monochlorosilanes.

Organic Letters 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, Application of Dichloro(hexyl)(methyl)silane.

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

Beppu, Teruo published the artcileHydrosilane synthesis via catalytic hydrogenolysis of halosilanes using a metal-ligand bifunctional iridium catalyst, Quality Control of 14799-94-1, the publication is Journal of Organometallic Chemistry (2018), 75-80, database is CAplus.

Hydrogenolysis of various halosilanes was catalyzed by Ir amido complexes to produce hydrosilanes. Selective monohydrogenolysis of di- and trichlorosilanes similarly proceeded, giving chlorohydrosilanes (R₂SiHCl or RSiHCl₂) as synthetically important building blocks for various organosilicon compounds A mechanistic study supported the in-situ formation of an Ir hydride species as a key intermediate, which could transfer the hydride to the Si atom through a metal-ligand bifunctional mechanism. One-pot hydrotrimethylsilylation of olefins was achieved via successive hydrogenolysis and hydrosilylation reactions starting from Me₃SiCl.

Journal of Organometallic Chemistry 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, Quality Control of 14799-94-1.

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

Somawardhana, C. W. published the artcileSynthesis of 2-[¹²³I and ¹²⁴I]-iodoisonicotinic acid hydrazide-potential radiotracers for tuberculosis, SDS of cas: 6313-54-8, the publication is Applied Radiation and Isotopes (1991), 42(3), 215-20, database is CAplus and MEDLINE.

The radiochem. syntheses of Me 2-[¹²³I]-iodoisonicotinate, 2-[¹²³I]-iodoisonicotinic acid hydrazide (I) and 2-[¹²⁴I]-iodoisonicotinic acid hydrazide was accomplished. Iodine-123 was incorporated in the Me ester mol. by an exchange reaction in glacial acetic acid. The average efficiency of iodine exchange reaction was (92.6%). This radiotracer was extracted with ether and the solvent was evaporated The residue was re-dissolved in anhydrous ethanol and treated with hydrazine under anhydrous conditions to obtain I. The overall radiochem. yield was 69%. Biodistribution data of both radio-tracers in male Sprague-Dawley rats were collected. This is the first report of SPECT radiopharmaceuticals which may be useful for differential diagnosis of intracranial masses (tuberculoma vs. glioma), and CNS tuberculosis in immunosuppressed subjects.

Applied Radiation and Isotopes published new progress about 6313-54-8. 6313-54-8 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,Carboxylic acid, name is 2-Chloroisonicotinic acid, and the molecular formula is C9H10O4, SDS of cas: 6313-54-8.

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

Yoshida, Masahito published the artcileStructure-activity relationship study on Col-003, a protein-protein interaction inhibitor between collagen and Hsp47, Recommanded Product: 5-Bromo-3-chloro-2-hydroxybenzaldehyde, the publication is Chemical & Pharmaceutical Bulletin (2020), 68(3), 220-226, database is CAplus and MEDLINE.

This study demonstrates the structure-activity relationship of Col-003, a potent collagen-heat-shock protein 47 (Hsp47) interaction inhibitor. Col-003 analogs were successfully synthesized by Pd(0)-catalyzed cross-coupling reactions of 5-bromosalicylaldehyde derivatives with alkyl-metal species, and the inhibitory activities of the synthetic analogs were evaluated using surface plasmon resonance anal. (BIAcore). We succeeded in discovering two potent inhibitors that showed 85 and 81% inhibition at a concentration of 1.9μM against the collagen-Hsp47 interaction. This indicates that elongation of an alkyl linker between two aromatic rings could considerably improve inhibitory activity due to the adjustment of a pendant Ph moiety to an appropriate position, in addition to the hydrophobic interaction with an alkyl linker moiety.

Chemical & Pharmaceutical Bulletin published new progress about 19652-33-6. 19652-33-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Benzene,Phenol,Aldehyde, name is 5-Bromo-3-chloro-2-hydroxybenzaldehyde, and the molecular formula is C4H10O2, Recommanded Product: 5-Bromo-3-chloro-2-hydroxybenzaldehyde.

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

Sharma, Prabodh Chander published the artcileDesign, Synthesis and Molecular Docking Studies of Some Thiazole Clubbed Heterocyclic Compounds as Possible Anti-infective Agents, HPLC of Formula: 3696-23-9, the publication is Letters in Organic Chemistry (2018), 15(8), 716-726, database is CAplus.

{[(Chlorophenyl)thiazolyl]arylpyrazolylmethylene}(arylimino)thiazolidinones I (R = 4-ClC₆H₄, 2-ClC₆H₄, Ph, 3-Cl-2-FC₆H₃, 4-FC₆H₄, 2,4-Cl₂C₆H₃, 2-ClC₆H₄, 4-MeOC₆H₄, 4-O₂NC₆H₄; R¹ = H, F, Cl, Br) were prepared and tested as antibacterial, antifungal, antimalarial, and antihelminthic agents. Potential binding modes of selected compounds with 14α-sterol demethylase and DNA gyrase subunit A were determined using mol. docking calculations The tested compounds exhibited moderate to significant antimicrobial activities. I (R = 4-O₂NC₆H₄; R¹ = Br) showed significant antimalarial activity with an IC₅₀ value of 0.59 μg/mL [as compared to chloroquine (IC₅₀ = 0.020 μg/mL) and quinine (IC₅₀ = 0.268 μg/mL)]. I (R = 2,4-Cl₂C₆H₃; R¹ = Cl) showed antihelminthic activity in earthworms with a mean time to paralysis of 19.2 ± 0.9 min and mean time to death of 31.7 ± 2.5 min.

Letters in Organic Chemistry published new progress about 3696-23-9. 3696-23-9 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Thiourea,Amine,Benzene,Amide, name is 1-(4-Chlorophenyl)thiourea, and the molecular formula is C15H14O3, HPLC of Formula: 3696-23-9.

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

Saheb Sharif-Askari, Narjes published the artcileEffect of common medications on the expression of SARS-CoV-2 entry receptors in kidney tissue, Formula: C12H15ClO3, the publication is Clinical and Translational Science (2020), 13(6), 1048-1054, database is CAplus and MEDLINE.

Besides the respiratory system, severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) infection was shown to affect other essential organs such as the kidneys. Early kidney involvement during the course of infection was associated with worse outcomes, which could be attributed to the direct SARS-CoV-2 infection of kidney cells. In this study, the effect of commonly used medications on the expression of SARS-CoV-2 receptor, angiotensin-converting enzyme (ACE)2, and TMPRSS2 protein in kidney tissues was evaluated. This was done by in silico analyses of publicly available transcriptomic databases of kidney tissues of rats treated with multiple doses of commonly used medications. Of 59 tested medications, 56% modified ACE2 expression, whereas 24% modified TMPRSS2 expression. ACE2 was increased with only a few of the tested medication groups, namely the renin-angiotensin inhibitors, such as enalapril, antibacterial agents, such as nitrofurantoin, and the proton pump inhibitor, omeprazole. The majority of the other medications decreased ACE2 expression to variable degrees with allopurinol and cisplatin causing the most noticeable downregulation. The expression level of TMPRSS2 was increased with a number of medications, such as diclofenac, furosemide, and dexamethasone, whereas other medications, such as allopurinol, suppressed the expression of this gene. The prolonged exposure to combinations of these medications could regulate the expression of ACE2 and TMPRSS2 in a way that may affect kidney susceptibility to SARS-CoV-2 infection. Data presented here suggest that the authors should be vigilant about the potential effects of commonly used medications on kidney tissue expression of ACE2 and TMPRSS2.

Clinical and Translational Science published new progress about 637-07-0. 637-07-0 belongs to chlorides-buliding-blocks, auxiliary class Inhibitor,Cell Cycle,PPAR, name is Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, and the molecular formula is C12H15ClO3, Formula: C12H15ClO3.

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

Kukhar, V. P. published the artcileReactions of trialkyl phosphites with polyhalomethanes, Quality Control of 866-23-9, the publication is Zhurnal Obshchei Khimii (1979), 49(7), 1470-4, database is CAplus.

In the reaction of CCl₄, CBr₄, and CHCl₃ with (RO)₃P (R = Et, Pr), one, two or three halo atoms are replaceable depending on the corresponding reagents used. Thus, reaction of CCl₄ with 2 mols. (EtO)₃P gave [(EtO)₂P(O)]₂CCl₂ whereas with 4 mols (EtO)₃P it gave [(EtO)₂P(O)]₂CH₂, (EtO)₂P(O)Cl, CH₂:CH₂ and EtCl.

Zhurnal Obshchei Khimii published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, Quality Control of 866-23-9.

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

Kumar, Rohitesh published the artcileDesign and Synthesis of a Screening Library Using the Natural Product Scaffold 3-Chloro-4-hydroxyphenylacetic Acid, Recommanded Product: 3-Chloro-4-hydroxyphenylacetic acid, the publication is Journal of Natural Products (2015), 78(4), 914-918, database is CAplus and MEDLINE.

The fungal metabolite 3-chloro-4-hydroxyphenylacetic acid (I) was utilized in the generation of a unique drug-like screening library using parallel solution-phase synthesis. A 20-membered amide library, II (R = CH₂CH₂CHMe₂, morpholinoethyl, CH₂CH₂NMe₂, etc.), III (R¹, R² = H, F, R³ = H, Br, Cl, F), and IV, was generated by first converting I to Me (3-chloro-4-hydroxyphenyl)acetate, then reacting this scaffold with a diverse series of primary amines via a solvent-free aminolysis procedure. The structures of the synthetic analogs II, III, and IV were elucidated by spectroscopic data anal. The structures of compounds III (R¹ = F, R² = R³ = H), IV (R¹ = R² = H, R³ = F), and the hydrate of II (R = CH₂CH₂NMe₂) were confirmed by single X-ray crystallog. anal. All compounds were evaluated for cytotoxicity against a human prostate cancer cell line (LNCaP) and for antiparasitic activity toward Trypanosoma brucei brucei and Plasmodium falciparum and showed no significant activity at 10 μM. The library was also tested for effects on the lipid content of LNCaP and PC-3 prostate cancer cells, and it was demonstrated that the fluorobenzyl analogs IV (R¹ = R² = H, R³ = F; R¹ = R³ = H, R² = F; R¹ = F, R² = R³ = H) significantly reduced cellular phospholipid and neutral lipid levels.

Journal of Natural Products published new progress about 33697-81-3. 33697-81-3 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Carboxylic acid,Benzene,Phenol, name is 3-Chloro-4-hydroxyphenylacetic acid, and the molecular formula is C8H7ClO3, Recommanded Product: 3-Chloro-4-hydroxyphenylacetic acid.

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

Onopchenko, Anatoli published the artcileTetraalkylsilanes via hydrosilylation of 1-alkenes, Recommanded Product: Dichloro(methyl)(octyl)silane, the publication is Journal of Chemical and Engineering Data (1988), 33(1), 64-6, database is CAplus.

Tetraalkylsilanes with 1 short and 3 long alkyl groups were prepared via a 2-step hydrosilylation procedure, which appears more suited for com. production than the Grignard or alkyllithium routes used previously. The viscosities of 2-component blends were treated by the ASTM D-341 procedure. The thermal stabilities of some silahydrocarbons and model paraffins, measured by the loss of their 40° viscosity, were determined at 371°.

Journal of Chemical and Engineering Data published new progress about 14799-93-0. 14799-93-0 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Dichloro(methyl)(octyl)silane, and the molecular formula is C9H20Cl2Si, Recommanded Product: Dichloro(methyl)(octyl)silane.

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

Jellen, Emily E. published the artcileProbing the stability and structure of metalloporphyrin complexes with basic peptides by mass spectrometry, Quality Control of 6249-56-5, the publication is European Journal of Mass Spectrometry (2005), 11(1), 65-72, database is CAplus and MEDLINE.

The stability and structure of noncovalent complexes of various peptides containing basic amino acid residues (Arg, Lys) with metalloporphyrins were studied in a quadrupole ion trap mass spectrometer. The complexes of heme and three other metalloporphyrins with a variety of basic peptides and model systems were formed via electrospray ionization (ESI) and their stability was probed by energy-variable collision-induced dissociation (CID). A linear dependence for basic peptides and model compounds/metalloporphyrin complexes was observed in the plots of stability vs. degrees of freedom and was used to evaluate relative bond strength. These results were then compared with previous data obtained for complexes of metalloporphyrins with His-containing peptides and peptides containing no basic amino acids. The binding strengths of Lys-containing peptide complexes in the gas phase is almost as strong as that of Arg-containing complexes. Both systems showed stronger binding than His-containing peptides studied previously. To probe the structure of Arg and Lys noncovalent complexes (charge solvation vs. salt bridges), two techniques, CID and ion-mol. reactions, were used. CID experiments indicate that the gas-phase complexes are most likely formed by charge solvation of the central metal ion in the metalloporphyrin by basic side chains of Arg or Lys. Results from the ion-mol. reaction studies are consistent with the charge solvation structure as well.

European Journal of Mass Spectrometry published new progress about 6249-56-5. 6249-56-5 belongs to chlorides-buliding-blocks, auxiliary class Phase Transfer Catalyst,Inhibitor,Natural product, name is 3-Carboxy-N,N,N-trimethylpropan-1-aminium chloride, and the molecular formula is C7H16ClNO2, Quality Control of 6249-56-5.

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