Author: Jessica.F

Niggemyer, Allison published the artcileIsolation and characterization of a novel As(V)-reducing bacterium: implications for arsenic mobilization and the genus Desulfitobacterium, Recommanded Product: 3-Chloro-4-hydroxyphenylacetic acid, the publication is Applied and Environmental Microbiology (2001), 67(12), 5568-5580, database is CAplus and MEDLINE.

Dissimilatory arsenate-reducing bacteria have been implicated in the mobilization of arsenic from arsenic-enriched sediments. An As(V)-reducing bacterium, designated strain GBFH, was isolated from arsenic-contaminated sediments of Lake Coeur d’Alene, Idaho. Strain GBFH couples the oxidation of formate to the reduction of As(V) when formate is supplied as the sole carbon source and electron donor. Addnl., strain GBFH is capable of reducing As(V), Fe(III), Se(VI), Mn(IV) and a variety of oxidized sulfur species. 16S ribosomal DNA sequence comparisons reveal that strain GBFH is closely related to Desulfitobacterium hafniense DCB-2^T and Desulfitobacterium frappieri PCP-1^T. Comparative physiol. demonstrates that D. hafniense and D. frappieri, known for reductively dechlorinating chlorophenols, are also capable of toxic metal or metalloid respiration. DNA-DNA hybridization and comparative physiol. studies suggest that D. hafniense, D. frappieri, and strain GBFH should be united into one species. The isolation of an Fe(III)- and As(V)-reducing bacterium from Lake Coeur d’Alene suggests a mechanism for arsenic mobilization in these contaminated sediments while the discovery of metal or metalloid respiration in the genus Desulfitobacterium has implications for environments cocontaminated with arsenious and chlorophenolic compounds

Applied and Environmental Microbiology 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

Munteanu, Charissa published the artcilePd- and Ni-Based Systems for the Catalytic Borylation of Aryl (Pseudo)halides with B₂(OH)₄, COA of Formula: C12H15ClO3, the publication is Journal of Organic Chemistry (2020), 85(16), 10334-10349, database is CAplus and MEDLINE.

Despite recent advancements in metal-catalyzed borylations of aryl (pseudo)halides, there is a continuing need to develop robust methods to access both early-stage and late-stage organoboron intermediates amendable for further functionalization. In particular, the development of general catalytic systems that operate under mild reaction conditions across a broad range of electrophilic partners remains elusive. Herein, it is reported the development and application of three catalytic systems (two Pd-based and one Ni-based) for the direct borylation of aryl (pseudo)halides using tetrahydroxydiboron (B₂(OH)₄). For the Pd-based catalyst systems, it was identified general reaction conditions that allow for the sequestration of halide ions through simple precipitation that results in catalyst loadings as low as 0.01 mol % (100 ppm) and reaction temperatures as low as room temperature It is also described a complementary Ni-based catalyst system that employs simple unligated Ni(II) salts as an inexpensive alternative to the Pd-based systems for the borylation of aryl (pseudo)halides. Extrapolation of all three systems to a one-pot tandem borylation/Suzuki-Miyaura cross-coupling is also demonstrated on advanced intermediates and drug substances.

Journal of Organic Chemistry 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, COA of Formula: C12H15ClO3.

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

Zhang, Chun-Hui published the artcileOptimization of triarylpyridinone inhibitors of the main protease of SARS-CoV-2 to low-nanomolar antiviral potency, SDS of cas: 1256345-74-0, the publication is ACS Medicinal Chemistry Letters (2021), 12(8), 1325-1332, database is CAplus and MEDLINE.

Non-covalent inhibitors of the main protease (M^pro) of SARS-CoV-2 having a pyridinone core were previously reported with IC₅₀ values as low as 0.018μM for inhibition of enzymic activity and EC₅₀ values as low as 0.8μM for inhibition of viral replication in Vero E6 cells. The series has now been further advanced by consideration of placement of substituted five-membered-ring heterocycles in the S4 pocket of M^pro and N-methylation of a uracil ring. Free energy perturbation calculations provided guidance on the choice of the heterocycles, and protein crystallog. confirmed the desired S4 placement. Here we report inhibitors with EC₅₀ values as low as 0.080μM, while remdesivir yields values of 0.5-2μM in side-by-side testing with infectious SARS-CoV-2. A key factor in the improvement is enhanced cell permeability, as reflected in PAMPA measurements. Compounds 19 (I) and 21 (II) are particularly promising as potential therapies for COVID-19, featuring IC₅₀ values of 0.044-0.061μM, EC₅₀ values of ca. 0.1μM, good aqueous solubility, and no cytotoxicity.

ACS Medicinal Chemistry Letters published new progress about 1256345-74-0. 1256345-74-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is (3-Chloro-5-propoxyphenyl)boronic acid, and the molecular formula is C18H34N4O5S, SDS of cas: 1256345-74-0.

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

Salas-Reyes, V. published the artcileSynthesis and characterization of bis[(3-chloro-4-dodecyloxyphenyl)malondialdehyde] complexes of copper(II) and nickel(II), Synthetic Route of 33697-81-3, the publication is Zeitschrift fuer Naturforschung, B: Chemical Sciences (1996), 51(12), 1679-1682, database is CAplus.

Bis[(3-chloro-4-dodecyloxyphenyl)malondialdehyde] copper(II) and its nickel homolog were synthesized. The Cu complex shows a narrow (15°) nematic phase below its clearing temperature The Ni complex is polymeric in nature.

Zeitschrift fuer Naturforschung, B: Chemical Sciences 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, Synthetic Route of 33697-81-3.

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

Juhl, Martin published the artcilerac-(1S,6S)-Methyl 6-methyl-2-oxobicyclo[4.1.0]heptane-1-carboxylate, Related Products of chlorides-buliding-blocks, the publication is Acta Crystallographica, Section E: Structure Reports Online (2007), 63(2), o838-o839, database is CAplus.

The crystal structure of the title compound, C₁₀H₁₄O₃, was studied as part of a study of the chem. of nucleophilic 1,4-additions to highly electrophilic C=C double bonds. Crystallog. data are given. The cyclohexane ring adopts a half-chair conformation. The crystal packing is stabilized by van der Waals forces.

Acta Crystallographica, Section E: Structure Reports Online 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 C3H9ClOS, Related Products of chlorides-buliding-blocks.

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

Wienhoefer, Gerrit published the artcileGeneral and Selective Iron-Catalyzed Transfer Hydrogenation of Nitroarenes without Base, Application In Synthesis of 350-30-1, the publication is Journal of the American Chemical Society (2011), 133(32), 12875-12879, database is CAplus and MEDLINE.

The first well-defined iron-based catalyst system for the reduction of nitroarenes to anilines has been developed applying formic acid as reducing agent. A broad range of substrates possessing other reducible functional groups were converted to the corresponding anilines in good to excellent yields at mild conditions with other function group untouched. Notably, the process constitutes a rare example of base-free transfer hydrogenations.

Journal of the American Chemical Society 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 C9H8BNO2, Application In Synthesis of 350-30-1.

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

Kukhar, V. P. published the artcileStudy of the AT-nucleotide specificity in the reaction of decamethoxine with natural DNA, Recommanded Product: N1,N10-Bis(2-((2-isopropyl-5-methylcyclohexyl)oxy)-2-oxoethyl)-N1,N1,N10,N10-tetramethyldecane-1,10-diaminium chloride, the publication is Doklady Akademii Nauk SSSR (1989), 305(4), 997-9 [Biophys.], database is CAplus.

Decamethoxine, an antibacterial quaternary ammonium compound, react with high-mol.-weight DNA (from calf thymus) with the formation of a complex compound This reaction was very specific and involved the binding of decamethoxine to AT base pairs of DNA. Possible mechanisms of antibacterial action of decamethoxine are discussed.

Doklady Akademii Nauk SSSR 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, Recommanded Product: 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

Chen, Xiao-Yang published the artcilePd-Catalyzed, ortho C-H Methylation and Fluorination of Benzaldehydes Using Orthanilic Acids as Transient Directing Groups, Synthetic Route of 929621-33-0, the publication is Journal of the American Chemical Society (2018), 140(8), 2789-2792, database is CAplus and MEDLINE.

The direct, Pd-catalyzed ortho C-H methylation and fluorination of benzaldehydes have been accomplished using com. available orthanilic acids as transient directing groups. In these reactions, the 1-fluoro-2,4,6-trimethylpyridinium salts can be either a bystanding F⁺ oxidant or an electrophilic fluorinating reagent. An X-ray crystal structure of a benzaldehyde ortho C-H palladation intermediate was obtained using triphenylphosphine as the stabilizing ligand.

Journal of the American Chemical Society published new progress about 929621-33-0. 929621-33-0 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Bromide,Benzene,Aldehyde, name is 4-Bromo-2-chloro-6-fluorobenzaldehyde, and the molecular formula is C7H3BrClFO, Synthetic Route of 929621-33-0.

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

Zhu, Kai published the artcileSynthesis of 2,2′-Dihalobiaryls via Cu-Catalyzed Halogenation of Cyclic Diaryliodonium Salts, Safety of 4-Chloro-2-methylphenylboronic acid, the publication is Organic Letters (2020), 22(23), 9356-9359, database is CAplus and MEDLINE.

We report an efficient method for the preparation of various 2,2′-dihalobiaryls from cyclic diaryliodonium salts. With cheap halogen sources as starting materials, a broad range of 2,2′-diiodobiaryls, 2-bromo-2′-iodobiaryls, and 2-chloro-2′-iodobiaryls were obtained under mild reaction conditions. More importantly, a chiral copper-bisoxazoline catalyst system was further developed for the preparation of axially chiral 2,2′-dihalobiaryls in excellent yields and enantioselectivities, which can serve as versatile precursors for the synthesis of various chiral ligands.

Organic Letters published new progress about 209919-30-2. 209919-30-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is 4-Chloro-2-methylphenylboronic acid, and the molecular formula is C22H18O2, Safety of 4-Chloro-2-methylphenylboronic acid.

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

Li, Ziyong published the artcileDicyanovinyl-substituted D-A type dithienylethenes: Synthesis, photochromism and colorimetric sensing for cyanide anion, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, the publication is Optical Materials (Amsterdam, Netherlands) (2019), 109235, database is CAplus.

A series of novel dithienylethene-based colorimetric sensors 1a-1d with a typical donor-acceptor structure have been successfully developed, which exhibited solvent-dependent photochromic properties in solution, as well as high selectivity and sensitivity for the naked-eye detection of cyanide anion in 95% aqueous CH₃CN media. Moreover, it was found that different structures had a noteworthy effect on both their photochromic properties and colorimetric sensing for CN^–. The sensing mechanism based on the nucleophilic addition reaction with CN^– was confirmed by absorption spectral studies, ¹H NMR titration and DFT calculations Among them, the sensor 1b displayed highly sensitive to CN^– (35 s) and lower detection limit (0.25μM), which can be utilized as a potential colorimetric sensor for CN^– in our daily life and environment.

Optical Materials (Amsterdam, Netherlands) published new progress about 219537-97-0. 219537-97-0 belongs to chlorides-buliding-blocks, auxiliary class Fused/Partially Saturated Cycles,Cyclopentenes, name is 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene, and the molecular formula is C15H14Cl2S2, Name: 5-Chloro-3-[2-(5-chloro-2-methylthien-3-yl)cyclopent-1-en-1-yl]-2-methylthiophene.

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