Chlorides-buliding-blocks

Wagh, Ravindra B. published the artcileSilica chloride: An efficient promoter for oxidation of arylboronic acids to phenols, Quality Control of 209919-30-2, the publication is Tetrahedron Letters (2017), 58(33), 3323-3326, database is CAplus.

This work reports simple, highly efficient protocol for the oxidation of arylboronic acids. Various arylboronic acids were selectively and completely converted into their corresponding oxidized phenols using H₂O₂ as an oxidant in presence of catalytic amount of silica chloride. The results show that silica chloride is a suitable and efficient promoter for the oxidation of arylboronic acids. Heterogeneous catalyst, mild reaction conditions, easy availability of the reagent, easy work-up, excellent yield of corresponding phenols, short reaction time and broad substrate scope makes this protocol attractive and a practical alternative to the existing methods.

Tetrahedron 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 C7H8FNO2S, Quality Control of 209919-30-2.

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

Silvestri, Maximilian A. published the artcileDesign, Synthesis, Anti-HIV Activities, and Metabolic Stabilities of Alkenyldiarylmethane (ADAM) Non-nucleoside Reverse Transcriptase Inhibitors, Computed Properties of 19652-33-6, the publication is Journal of Medicinal Chemistry (2004), 47(12), 3149-3162, database is CAplus and MEDLINE.

The alkenyldiarylmethane (ADAM) HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs) are effective anti-HIV agents in cell culture. However, the potential clin. utility of the ADAMs is expected to be limited by the presence of Me ester moieties that are likely to be metabolized by nonspecific esterases in blood plasma to biol. inactive carboxylic acid derivatives The present investigation was therefore undertaken to investigate the anti-HIV activities of the ADAMs vs. HIV-1_IIIB and HIV-2_ROD in MT-4 cells and the stabilities of the biol. active ADAMs in rat plasma. Synthesis of most of the ADAMs I (R¹ = R⁴ = CO₂Me, R² = MeO, R³ = Br, Cl, Me, cyano; R¹ = CO₂Me, R² = MeO, R³ = Br, Cl, Me, R⁴ = CC, CH:CH, Ph, CO₂-n-Pr, CO₂CHMe₂; etc.) were reported previously. However, 13 of the 32 compounds, I (R¹ = CO₂Me, R² = MeO, R³ = Br, R⁴ = CH₂OMe; R¹ = R⁴ = CH₂OH, R² = MeO, R³ = Cl; R¹ = R⁴ = CH₂OMe, R² = MeO, R³ = Cl; etc.), tested were newly synthesized. For example, reacting Me 5-methoxypentanoate with benzophenone II gave I (R¹ = CO₂Me, R² = MeO, R³ = Br, R⁴ = CH₂OMe) in 24% yield. The ADAMs displayed a wide range of metabolic stabilities in rat plasma, with half-lives ranging from 0.9 to 76.6 min. A wide assortment of structural modifications was tolerated, with 18 of the 32 compounds tested displaying EC₅₀ values between 0.3 and 3.7 μM vs. HIV-1_IIIB in MT-4 cells, 3 compounds in the EC₅₀ = 13.2-35.4 μM range, and the remaining compounds inactive. Consistent with the mechanism of action of the ADAMs as NNRTIs, they were inactive or displayed comparatively low activity vs. HIV-2_ROD. The replacement of the two aromatic Me ester substituents in one of the most active ADAMs (EC₅₀ = 0.6 μM) with two Me thioester groups resulted in an increase in plasma half-life from 5.8 to 55.3 min, while maintaining the antiviral potency at the EC₅₀ = 1.8 μM level. At the same time, the bis(thioester) modification was less cytotoxic to uninfected MT-4 cells, with a CC₅₀ of >224 μM vs. 160 μM for the parent compound

Journal of Medicinal Chemistry 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 C10H16Br3N, Computed Properties of 19652-33-6.

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

Fukuda, Takashi published the artcileNectriatide, a potentiator of amphotericin B activity from Nectriaceae sp. BF-0114, HPLC of Formula: 42074-68-0, the publication is Journal of Natural Products (2019), 82(10), 2673-2681, database is CAplus and MEDLINE.

A new compound, designated nectriatide (1), was isolated as a potentiator of amphotericin B (AmB) activity against Candida albicans from the culture broth of Nectriaceae sp. BF-0114. This structure was elucidated based on spectroscopic analyses (1D and 2D NMR data), chem. methods, and total synthesis. Compound 1 was a unique cyclotetrapeptide consisting of L-N-methyltyrosine, anthranilic acid, L-alanine, and L-valine. Compound 1 and several synthetic derivatives, including linear peptides, potentiated AmB activity against C. albicans by up to 16-fold (the MIC value of AmB decreased from 0.5μg/mL to 0.031μg/mL in combination with test compound).

Journal of Natural Products published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, HPLC of Formula: 42074-68-0.

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

Konuki, Kaname published the artcileEnantiomeric purity enrichment of (R)-tetrahydrothiophene-3-ol sulfonyl derivatives by crystallization, Synthetic Route of 21286-54-4, the publication is Tetrahedron: Asymmetry (2014), 25(24), 1581-1589, database is CAplus.

(R)-Tetrahydrothiophen-3-yl sulfonates I [R = R¹SO₂; R¹ = 4-MeC₆H₄, Me, i-Pr, Bu, Ph, PhCH₂, 4-MeOC₆H₄, 4-ClC₆H₄, 2,4,6-Me₃C₆H₂, 4-AcNHC₆H₄, 2,5-(MeO)₂C₆H₃, 3,4-(MeO)₂C₆H₃, 1-naphthyl, 2-naphthyl, 5-dimethylamino-1-naphthyl, (+)-10-camphyl, (-)-10-camphyl] were prepared in 68-74% ee from the corresponding nonracemic alc. I (R = H) and sulfonyl chlorides R¹SO₂Cl for recrystallization to increase the enantiomeric purities without using seed crystals. The improvement in enantiopurity on recrystallization depended on the identity of the sulfonate group. I (R = Ph, Me, i-Pr, Bu) did not form crystals under appropriate conditions; in most of the remaining cases, the enantiopurity of the sulfonates isolated from the mother liquor were higher than those of the original sulfonates, while recrystallization of I (R = H, 5-dimethylamino-1-naphthalenesulfonyl) yielded crystals of higher enantiopurities than the starting materials. In particular, crystallization of the diastereomeric camphorsulfonates I [R = (+)-10-camphorsulfonyl, (-)-10-camphorsulfonyl] yielded mother liquors in which the sulfonates were isolated in 100% de and 95% de, resp.

Tetrahedron: Asymmetry 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, Synthetic Route of 21286-54-4.

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

Wan, Zhongliang published the artcileSynthesis and Biological Activity of 3-N-Substituted Estrogen Derivatives as Breast Cancer Agents, Product Details of C5H13Cl2N, the publication is Mini-Reviews in Medicinal Chemistry (2013), 13(9), 1381-1388, database is CAplus and MEDLINE.

3-N-substituted-estrogen derivatives I [R = 3-morpholinopropyl, (CH₂)₃NMe₂, CH(Me)CH₂NMe₂, 3-piperidinopropyl, 3-aminopropyl, etc.] were synthesized and characterized. Their antiproliferative activities against human ER(+) MCF-7 (breast), ER(-) MDA-MB-231 (breast) and Ishikawa (endometrial) cancer cell lines were determined after 72 h drug exposure employing CellTiter-Glo assay at concentrations ranging from (0.01-100,000 nM). The antiproliferative activities of these compounds were compared to tamoxifen (TAM), 4-hydroxytamoxifen (4-OHT, active metabolite of tamoxifen) and raloxifene (RAL). In vitro results indicated that compound I (R = 3-piperidinopropyl) (IC₅₀ = 12μM) displayed comparable antiproliferative activity against MDA-MB 231 cell line; while compounds I [R = (CH₂)₃NMe₂, CH(Me)CH₂NMe₂, (CH₃)₃NEt₂] (IC₅₀ = 12μM) displayed higher activity against MCF-7 and Ishikawa cell lines, in comparison to TAM activity (19-33μM).

Mini-Reviews in Medicinal Chemistry published new progress about 4584-49-0. 4584-49-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Salt,Amine,Aliphatic hydrocarbon chain, name is 2-Chloro-N,N-dimethylpropan-1-amine hydrochloride, and the molecular formula is C13H17BrO3, Product Details of C5H13Cl2N.

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

Senthamarai, Thirusangumurugan published the artcileExpedient Synthesis of N-Methyl- and N-Alkylamines by Reductive Amination using Reusable Cobalt Oxide Nanoparticles, Safety of 3-Chloro-4-fluoronitrobenzene, the publication is ChemCatChem (2018), 10(6), 1235-1240, database is CAplus.

N-Methyl- and N-alkylamines represent important fine and bulk chems. that are extensively used in both academic research and industrial production Notably, these structural motifs are found in a large number of life-science mols. and play vital roles in regulating their activities. Therefore, the development of convenient and cost-effective methods for the synthesis and functionalization of amines by using earth-abundant metal-based catalysts is of scientific interest. In this regard, an expedient reductive amination process for the selective synthesis of N-methylated and N-alkylated amines by using nitrogen-doped, graphene-activated nanoscale Co₃O₄-based catalysts, is reported. Starting from inexpensive and easily accessible nitroarenes or amines and aqueous formaldehyde or aldehydes in the presence of formic acid, this cost-efficient reductive amination protocol allows the synthesis of various N-methyl- and N-alkylamines, amino acid derivatives, and existing drug mols.

ChemCatChem 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 C9H9F5Si, Safety of 3-Chloro-4-fluoronitrobenzene.

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

Jagadeesh, Rajenahally V. published the artcileMOF-derived cobalt nanoparticles catalyze a general synthesis of amines, Product Details of C6H3ClFNO2, the publication is Science (Washington, DC, United States) (2017), 358(6361), 326-332, database is CAplus and MEDLINE.

The development of base metal catalysts for the synthesis of pharmaceutically relevant compounds remains an important goal of chem. research. Here, we report that cobalt nanoparticles encapsulated by a graphitic shell are broadly effective reductive amination catalysts. Their convenient and practical preparation entailed template assembly of cobalt-diamine-dicarboxylic acid metal organic frameworks on carbon and subsequent pyrolysis under inert atm. The resulting stable and reusable catalysts were active for synthesis of primary, secondary, tertiary, and N-methylamines (more than 140 examples). The reaction couples easily accessible carbonyl compounds (aldehydes and ketones) with ammonia, amines, or nitro compounds, and mol. hydrogen under industrially viable and scalable conditions, offering cost-effective access to numerous amines, amino acid derivatives, and more complex drug targets.

Science (Washington, DC, United States) 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, Product Details of C6H3ClFNO2.

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

Mahadevappa, D. S. published the artcileParamagnetic resonance in gamma-irradiated chloramine-T, Quality Control of 7080-50-4, the publication is Journal of the Indian Chemical Society (1971), 48(7), 683-4, database is CAplus.

The ESR spectra of p-MeC6H4SO2NClNa (I) and p-MeC6H4SO2NClNa.3H2O (II) (irradiated by 60Co γ-rays to total doses of 2.74 × 1019 and 2.86 × 1019 eV/g, resp.) at room temperature consist of single absorption lines which are slightly asym. No hyperfine splitting was observed even under maximum resolution. The g1-, g2-, and g3-tensors, resp., are: I 2.006, 2.0036, 2.000; II 2.014, 2.006, 2.000. The odd electron probably moves in a delocalized π orbital. Irradiation of solid I by Cu Kα x-rays and 60Co γ-rays resulted in intense decomposition of the compound; the number of mols. decomposed per 100 eV of radiant energy was ≈300, which indicates the operation of chain factors in the various decomposition steps.

Journal of the Indian Chemical Society published new progress about 7080-50-4. 7080-50-4 belongs to chlorides-buliding-blocks, auxiliary class Halogenation Reagent,Inhibitor, name is Sodium chloro(tosyl)amide trihydrate, and the molecular formula is C7H13ClNNaO5S, Quality Control of 7080-50-4.

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

Tzschucke, C. Christoph published the artcileArenes to anilines and aryl ethers by sequential iridium-catalyzed borylation and copper-catalyzed coupling, Recommanded Product: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, the publication is Organic Letters (2007), 9(5), 761-764, database is CAplus and MEDLINE.

N-Alkyl- and N-arylanilines were synthesized from arenes by a two-step sequence of iridium-catalyzed borylation and copper-catalyzed coupling with amines. Diaryl ethers were obtained by a related sequence of arene borylation, followed by coupling with phenols. In particular, 3,5-disubstituted arylamines and aryl ethers were prepared by initiating this sequence with meta-substituted arenes.

Organic Letters published new progress about 929626-16-4. 929626-16-4 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Boronic acid and ester,Benzene,Ether,Boronic Acids,Boronate Esters, name is 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C11H15NO2, Recommanded Product: 2-(3-Chloro-5-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

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

Jun, Bong-Hyun published the artcileSynthesis method of asymmetric gold particles, Formula: C19H14Cl2, the publication is Scientific Reports (2017), 7(1), 1-5, database is CAplus and MEDLINE.

Asym. particles can exhibit unique properties. However, reported synthesis methods for asym. particles hinder their application because these methods have a limited scale and lack the ability to afford particles of varied shapes. Herein, we report a novel synthetic method which has the potential to produce large quantities of asym. particles. Asym. rose-shaped gold particles were fabricated as a proof of concept experiment First, silica nanoparticles (NPs) were bound to a hydrophobic micro-sized polymer containing 2-chlorotritylchloride linkers (2-CTC resin). Then, half-planar gold particles with rose-shaped and polyhedral structures were prepared on the silica particles on the 2-CTC resin. Particle size was controlled by the concentration of the gold source. The asym. particles were easily cleaved from the resin without aggregation. We confirmed that gold was grown on the silica NPs. This facile method for synthesizing asym. particles has great potential for materials science.

Scientific Reports published new progress about 42074-68-0. 42074-68-0 belongs to chlorides-buliding-blocks, auxiliary class Chloride,Benzyl chloride,Benzene, name is 2-Chlorotrityl chloride, and the molecular formula is C19H14Cl2, Formula: C19H14Cl2.

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