Tag: M.W=200-250

Lanzi, Matteo published the artcileCyclic Diaryl λ³-Bromanes as Original Aryne Precursors, HPLC of Formula: 1217501-18-2, the publication is Angewandte Chemie, International Edition (2021), 60(27), 14852-14857, database is CAplus and MEDLINE.

Despite the widespread application of hypervalent iodines, the corresponding λ³-bromanes are less explored. Herein the authors report a general, safe, and high-yielding strategy to access cyclic diaryl λ³-bromanes. These unique compounds feature reactivity that is appealing and complementary to that of λ³-iodanes, generating arynes under mild reaction conditions and in the presence of a weak base. Accordingly, formal meta-selective transition-metal-free C-O and C-N couplings may be achieved. Mechanistic studies unambiguously support the aryne generation mechanism.

Angewandte Chemie, International Edition published new progress about 1217501-18-2. 1217501-18-2 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Boronic acid and ester,Benzene,Boronic Acids,Boronic Acids,Boronic acid and ester,, name is (2-Bromo-5-chlorophenyl)boronic acid, and the molecular formula is C6H5BBrClO2, HPLC of Formula: 1217501-18-2.

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

Lanzi, Matteo published the artcileCyclic Diaryl λ³-Bromanes as Original Aryne Precursors, SDS of cas: 1451393-45-5, the publication is Angewandte Chemie, International Edition (2021), 60(27), 14852-14857, database is CAplus and MEDLINE.

Despite the widespread application of hypervalent iodines, the corresponding λ³-bromanes are less explored. Herein the authors report a general, safe, and high-yielding strategy to access cyclic diaryl λ³-bromanes. These unique compounds feature reactivity that is appealing and complementary to that of λ³-iodanes, generating arynes under mild reaction conditions and in the presence of a weak base. Accordingly, formal meta-selective transition-metal-free C-O and C-N couplings may be achieved. Mechanistic studies unambiguously support the aryne generation mechanism.

Angewandte Chemie, International Edition published new progress about 1451393-45-5. 1451393-45-5 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Bromide,Boronic acid and ester,Benzene,Boronic Acids,Boronic acid and ester, name is (2-Bromo-4-chlorophenyl)boronic acid, and the molecular formula is C6H5BBrClO2, SDS of cas: 1451393-45-5.

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

Crotti, Simone published the artcileEnantioselective Synthesis of Trifluoromethyl α,β-Unsaturated δ-Lactones via Vinylogous Aldol-Lactonization Cascade, Name: 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, the publication is Journal of Organic Chemistry (2018), 83(20), 12440-12448, database is CAplus and MEDLINE.

The novel vinylogous aldol-lactonization cascade of alkylidene oxindole with trifluoromethyl ketones is presented. The reaction, catalyzed by a bifunctional tertiary amine, provides an efficient application of the vinylogous reactivity of alkylidene oxindoles for the preparation of enantioenriched trifluoromethylated α,β-unsaturated δ-lactones.

Journal of Organic Chemistry published new progress about 5860-95-7. 5860-95-7 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Benzene,Ketone, name is 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone, and the molecular formula is C8H4ClF3O, Name: 1-(2-Chlorophenyl)-2,2,2-trifluoroethanone.

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

Fanfoni, Lidia published the artcileEfficient synthesis of new fluorinated building blocks by means of hydroformylation, Quality Control of 864725-22-4, the publication is Chimia (2014), 68(6), 371-377, database is CAplus and MEDLINE.

The hydroformylation reactions of fluorinated olefins were reviewed and added new results from the research group. The particular attention is paid to the remarkable influence of organofluorine substituents on catalyst activity, regio- and stereoselectivity of the hydroformylation reaction.

Chimia published new progress about 864725-22-4. 864725-22-4 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Alkenyl,Benzene, name is 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene, and the molecular formula is C9H5Cl2F3, Quality Control of 864725-22-4.

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

Chen, Yen-Wei published the artcilePharmOmics: A species- and tissue-specific drug signature database and gene-network-based drug repositioning tool, SDS of cas: 637-07-0, the publication is iScience (2022), 25(4), 104052, database is CAplus and MEDLINE.

Drug development has been hampered by a high failure rate in clin. trials due to our incomplete understanding of drug functions across organs and species. Therefore, elucidating species- and tissue-specific drug functions can provide insights into therapeutic efficacy, potential adverse effects, and interspecies differences necessary for effective translational medicine. Here, we present PharmOmics, a drug knowledgebase and anal. tool that is hosted on an interactive web server. Using tissue- and species-specific transcriptome data from human, mouse, and rat curated from different databases, we implemented a gene-network-based approach for drug repositioning. We demonstrate the potential of PharmOmics to retrieve known therapeutic drugs and identify drugs with tissue toxicity using in silico performance assessment. We further validated predicted drugs for nonalcoholic fatty liver disease in mice. By combining tissue- and species-specific in vivo drug signatures with gene networks, PharmOmics serves as a complementary tool to support drug characterization and network-based medicine.

iScience 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, SDS of cas: 637-07-0.

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

Cockcroft, Xiao-ling published the artcilePhthalazinones 2: Optimisation and synthesis of novel potent inhibitors of poly(ADP-ribose)polymerase, Synthetic Route of 116853-97-5, the publication is Bioorganic & Medicinal Chemistry Letters (2006), 16(4), 1040-1044, database is CAplus and MEDLINE.

We have previously described the discovery of poly(ADP-ribose)polymerase-1 (PARP-1) inhibitors based on a phthalazinone scaffold. Subsequent optimization of inhibitory activity, metabolic stability and pharmacokinetic parameters has led to a novel series of meta-substituted 4-benzyl-2H-phthalazin-1-one PARP-1 inhibitors which retain low nM cellular activity and show good stability in vivo and efficacy in cell based models.

Bioorganic & Medicinal Chemistry Letters published new progress about 116853-97-5. 116853-97-5 belongs to chlorides-buliding-blocks, auxiliary class Pyridine,Chloride,acyl chloride,Ether, name is 2-Chloro-6-methoxyisonicotinoyl chloride, and the molecular formula is C7H5Cl2NO2, Synthetic Route of 116853-97-5.

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

Hamann, Lawrence G. published the artcileBenzodiazepine-based selective inhibitors of mitochondrial F₁F₀ ATP hydrolase, Recommanded Product: 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, the publication is Bioorganic & Medicinal Chemistry Letters (2004), 14(4), 1031-1034, database is CAplus and MEDLINE.

A series of benzodiazepine-based inhibitors of mitochondrial F₁F₀ ATP hydrolase were prepared and evaluated for their ability to selectively inhibit the enzyme in the forward direction. Compounds from this series showed excellent potency and selectivity for ATP hydrolase vs. ATP synthase, suggesting a potentially beneficial profile useful for the treatment of ischemic heart disease. The most potent member of the group of compounds thus tested was 4-[[4-(1,1-dimethylethyl)phenyl]sulfonyl]-2,3,4,5-tetrahydro-1-(1H-imidazol-4-ylmethyl)-2-(2-phenylethyl)-1H-1,4-benzodiazepine (I). I also inhibited cytochrome P 450 isoform CYP2C9. The structure of I was further modified to diminish this undesired side effect.

Bioorganic & Medicinal Chemistry Letters published new progress about 254749-11-6. 254749-11-6 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene, name is 2-Chloro-4-cyanobenzene-1-sulfonyl chloride, and the molecular formula is C7H3Cl2NO2S, Recommanded Product: 2-Chloro-4-cyanobenzene-1-sulfonyl chloride.

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

Fujiwara, Yuta published the artcilePractical C-H Functionalization of Quinones with Boronic Acids, Product Details of C9H12BClO3, the publication is Journal of the American Chemical Society (2011), 133(10), 3292-3295, database is CAplus and MEDLINE.

A direct functionalization of a variety of quinones with several boronic acids has been developed. This scalable reaction proceeds readily at room temperature in an open flask using catalytic silver(I) nitrate in the presence of a persulfate co-oxidant. The scope with respect to quinones is broad, with a variety of alkyl- and arylboronic acids undergoing efficient cross-coupling. The mechanism is presumed to proceed through a nucleophilic radical addition to the quinone with in situ reoxidation of the resulting dihydroquinone. This method has been applied to complex substrates, including a steroid derivative and a farnesyl natural product.

Journal of the American Chemical Society published new progress about 480438-56-0. 480438-56-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronic acid and ester, name is 3-Chloro-4-isopropoxyphenylboronic acid, and the molecular formula is C9H12BClO3, Product Details of C9H12BClO3.

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

Cypryk, Marek published the artcileCopolymerization of functional cyclotrisiloxanes – a reactivity comparison, Application In Synthesis of 14799-93-0, the publication is Polimery (Warsaw, Poland) (2010), 55(7/8), 503-511, database is CAplus.

Kinetics of controlled simultaneous copolymerization of hexamethylcyclotrisiloxane (D₃) with functional cyclotrisiloxanes was studied using n-BuLi in THF as initiator. Trifunctional (MeXSiO)₃ (X₃), where X = vinyl, trifluoropropyl or chloropropyl group, and monofunctional monomers [(Me₂SiO)₂MeXSiO] (D₂X), where X = cyanopropyl or n-octyl group, were used as monomers. Reactivity ratios for each pair of comonomers were determined and the possibility of synthesis of gradient copolymers by this method is discussed.

Polimery (Warsaw, Poland) 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, Application In Synthesis of 14799-93-0.

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

Cossement, D. published the artcileSelf-assembled monolayers of branched alkylsilanes on polycrystalline titanium surfaces, Name: Dichloro(methyl)(octyl)silane, the publication is Surface and Interface Analysis (2000), 30(1), 56-60, database is CAplus.

The silanization reaction on polycrystalline Ti surfaces was studied from the point of view of engineering a densely packed chemisorbed layer at the interface. For this purpose methyl-n-octyldichlorosilane (MODCS) and 2-methyl-1-trichlorosilylundecane (2MTCSU) were used and compared with n-octyltrichlorosilane (OTCS). XPS and contact angle measurements reveal that 2MTCSU forms well covering but not so densely packed monolayers as does OTCS. In contrast to 2MTCSU, MODCS does not provide a proper modification of the surface because of the small amount of mols. chemisorbed on the surface.

Surface and Interface Analysis 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, Name: Dichloro(methyl)(octyl)silane.

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