Month: December 2022

Yan, Yu-Hang published the artcileStructure-guided optimization of 1H-imidazole-2-carboxylic acid derivatives affording potent VIM-Type metallo-β-lactamase inhibitors, Category: chlorides-buliding-blocks, the publication is European Journal of Medicinal Chemistry (2022), 113965, database is CAplus and MEDLINE.

X-ray structure-guided optimization of 1H-imidazole-2-carboxylic acid (ICA) derivatives, I [R¹ = cyclopropyl, 4-pyridylmethyl, 2-(1-methyltetrazol-5-yl)sulfanylethyl, etc.; R² = R³ = Me, cyclopropyl, Ph, etc.] was reported by considering how to engage with the active-site flexible loops and improve penetration into Gram-neg. bacteria. Structure-activity relationship studies revealed the importance of appropriate substituents at ICA 1-position to achieve potent inhibition to class B1 MBLs, particularly the Verona Integron-encoded MBLs (VIMs), mainly by involving ingenious interactions with the flexible active site loops as observed by crystallog. analyses. Of the tested ICA inhibitors, I [R¹ = 4-pyridylmethyl, R² = R³ = H] displayed potent synergistic antibacterial activity with meropenem against engineered Escherichia coli strains and even intractable clin. isolated Pseudomonas aeruginosa producing VIM-2 MBL. The morphol. and internal structural changes of bacterial cells after treatment further demonstrated that I [R¹ = 4-pyridylmethyl, R² = R³ = H] crossed the outer membrane and reversed the activity of meropenem. Moreover, I [R¹ = 4-pyridylmethyl, R² = R³ = H] showed good pharmacokinetic and safety profile in vivo, which could be a potential candidate for combating VIM-mediated Gram-neg. carbapenem resistance.

European Journal of Medicinal Chemistry published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C3H6O2, Category: chlorides-buliding-blocks.

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

Huang, Hong-Gui published the artcileTrifluoromethanesulfonyl azide as a bifunctional reagent for metal-free azidotrifluoromethylation of unactivated alkenes, Safety of ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride, the publication is Chemical Science (2021), 12(9), 3210-3215, database is CAplus and MEDLINE.

A simple and metal-free method that rapidly provides these building blocks, e.g., I from abundant alkenes RR¹C=CR²R³ (R = 3-[(pyridin-3-yl)carbonyloxy]propyl, C₈H₁₇, CH₂C₆H₅, etc.; R¹ = H, Me, n-Pr; R² = R³ = H, Me) and trifluoromethanesulfonyl azide (N₃SO₂CF₃). This unprecedented two-component reaction employs readily available N₃SO₂CF₃ as a bifunctional reagent to concurrently incorporate both CF₃ and N₃ groups, which avoids the use of their expensive and low atom economic precursors. A wide range of functional groups, including bio-relevant heterocycles and amino acids, was tolerated. Application of this method was further demonstrated by scale-up synthesis (5 mmol), product derivatization to CF₃-containing medicinal chem. motifs, as well as late-stage modification of natural products, e.g., 5-(2,2,2-trifluoroethyl)pyrrolidin-2-one and drug derivatives

Chemical Science 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, Safety of ((1S,4R)-7,7-Dimethyl-2-oxobicyclo[2.2.1]heptan-1-yl)methanesulfonyl chloride.

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

Wang, Sheng published the artcileStimuli-Responsive Copolymer and Uniform Polymeric Nanoparticles with Photochromism and Switchable Emission, Application In Synthesis of 219537-97-0, the publication is ChemPhotoChem (2019), 3(7), 568-574, database is CAplus.

An efficient approach to make a fluorescent polymer both photoswitchable and stimuli-responsive was successfully developed by rationally introducing a photochromic bisthienylethene derivative (BTE) and fluorescent 4-dicyanomethylene-2,6-distyryl-4H-pyran derivative (DPC) units in the side chains via copolymerization Benefiting from the reversible photocyclization of BTE and the intermol. Foerster Resonance Energy Transfer (FRET) effect from DPC to the closed form of BTE, the emission signatures of the polymer both in solution in organic solvents and in thin films could be tuned by the alternating irradiation of UV and visible light. Moreover, uniform polymeric nanoparticles (NPs) with reversibly photoswitchable fluorescence properties were synthesized using a facile one-step mini-emulsion polymerization This polymer could act as a smart material for photoresponsive polymer illuminants and offers new platform for multifunctional mol. switching and multi-responsive materials.

ChemPhotoChem 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 C13H26N2, Application In Synthesis of 219537-97-0.

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

Liu, Jianping published the artcileSynthesis and herbicidal activity of α-benzylcyclododecanone oxime esters, Synthetic Route of 6313-54-8, the publication is Nongyaoxue Xuebao (2008), 10(2), 161-165, database is CAplus.

Several α-(benzyl)cyclododecanone oxime esters were synthesized by a reaction of α-(benzyl)cyclododecanone oxime with carboxylic acid derivatives Product structures were determined by NMR, elemental anal., IR. A preliminary bioassay indicated that one compound possessed an an inhibition rate 72.70% and 54.98% against Digitaria sanguinalis and 85.04% and 81.91% against Abutilon theophrasti at a concentration of 100 and 1 mg/L. The IC₅₀ value for Digitaria sanguinalis and IC₉₀ value for Abutilon theophrasti of that compound was was 0.49 and 1.90 mg/L, resp.

Nongyaoxue Xuebao 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 C6H4ClNO2, Synthetic Route of 6313-54-8.

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

Yu, Liping published the artcileFluorinated Alcohol-Promoted Reaction of Chlorohydrocarbons with Diverse Nucleophiles for the Synthesis of Triarylmethanes and Tetraarylmethanes, Safety of 2-Chlorotrityl chloride, the publication is Journal of Organic Chemistry (2018), 83(24), 15277-15283, database is CAplus and MEDLINE.

This article reports an efficient synthesis of triarylmethanes and tetraarylmethanes from chlorohydrocarbons with miscellaneous nucleophiles in fluorinated alcs., featuring metal-free, wide substrate scope, excellent functional group tolerance, and mild reaction conditions.

Journal of Organic Chemistry 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 C7H8BBrO3, Safety of 2-Chlorotrityl chloride.

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

Xiao, Tangxin published the artcileNovel Macrocycles Bearing Dithienylethene Units and Urea Functional Groups: Synthesis, Structure and Photochromic Property, Formula: C15H14Cl2S2, the publication is Chinese Journal of Chemistry (2013), 31(5), 627-634, database is CAplus.

Two novel photochromic macrocycles bearing dithienylethene units and urea building blocks have been synthesized, and their photochromic properties are described. One Macrocycle shows good photochromic properties, while the relatively smaller size of macrocycle exhibits photochem. inactive properties due to the unfavorable ring conformational constraint. Moreover, the crystal structures of the urea-protected precursor macrocycles are presented.

Chinese Journal of Chemistry 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 C7H6N2O2S, Formula: C15H14Cl2S2.

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

Yang, Li-Miao published the artcilePalladium Catalyzed Aminocarbonylation of Benzylic Ammonium Triflates with Nitroarenes: Synthesis of Phenylacetamides, COA of Formula: C6H3ClFNO2, the publication is Advanced Synthesis & Catalysis (2021), 363(8), 2061-2065, database is CAplus.

A palladium catalyzed reductive aminocarbonylation of benzylic ammonium triflates with nitroarenes for the synthesis of phenylacetamides was developed. Using Pd(acac)₂/DPPF catalyst system, a range of different substituted phenylacetamides were prepared in moderate to good yields from benzylic ammonium triflates and nitroarenes through Csp³-N bond cleavage. A variety of alkyl, aryl, and halide substituents on both substrates was used, and many useful functional groups were tolerated.

Advanced Synthesis & Catalysis 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 C11H21BF4N2O2, COA of Formula: C6H3ClFNO2.

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

Li, Yannian published the artcilePhotochemically Reversible and Thermally Stable Axially Chiral Diarylethene Switches, Application In Synthesis of 219537-97-0, the publication is Organic Letters (2012), 14(17), 4362-4365, database is CAplus and MEDLINE.

A series of dithienylcyclopentenes containing axially chiral 1,1′-binaphthyl units were successfully synthesized by a Suzuki-Miyaura protocol. All these compounds exhibited photochem. reversible isomerization with thermal stability in both organic solvent and a liquid crystal (LC) host. When doping into an achiral LC host, some of them exhibited very high helical twisting powers. Reversible reflection wavelength tuning in the visible region and LC phase switching between nematic and cholesteric upon light irradiation were demonstrated.

Organic Letters 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, Application In Synthesis of 219537-97-0.

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

Yang, Zaibo published the artcileDesign, synthesis, and biological evaluation of novel pyrethrin derivatives containing 1,3,4-oxadiazole and thioether moieties as active insecticidal agents, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene, the publication is Chemical Papers (2020), 74(5), 1621-1632, database is CAplus.

To discover and develop novel active mols., in this study, a series of novel pyrethrin derivatives containing 1,3,4-oxadiazole and thioether moieties were I [R = Ph, 5-chloro-thienyl, 2-fluorophenyl, etc.] designed and synthesized. Bioassay results revealed that some of the target compounds I possessed good insecticidal activities against Plutella xylostella (P. xylostella), Vegetable aphids (V. aphids), and Empoasca vitis (E. vitis), resp., which were even better than those of the com. insecticidal agents chlorpyrifos, beta cypermethrin, spinosad, and azadirachtin. The results favored this rational design intention and provide a new class of small-mol. inhibitors available for the development of active insecticidal agents targeting P. xylostella, V. aphids, and E. vitis.

Chemical Papers published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C9H5ClO4S, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene.

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

Yang, Zaibo published the artcileNovel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety: Design, synthesis, and insecticidal activity, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene, the publication is Journal of Heterocyclic Chemistry (2020), 57(1), 81-88, database is CAplus.

In this study, a series of novel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety, I (R = Ph, 2-ClC₆H₄, 6-chloropyridinyl, etc.), were designed and synthesized. Bioassay results revealed that some of the target compounds possessed excellent insecticidal activities against Plutella xylostella (P. xylostella), Vegetable aphids (V. aphids), and Empoasca vitis (E. vitis), resp. In particular, compound I (R = 4-F₃CC₆H₄) revealed the best insecticidal activities against P. xylostella and V. aphids, with the 50% lethal concentration (LC₅₀) values of 1.78 and 1.61 mg/L, resp.; meanwhile, compound I (R = 5-chlorothiadiazol-2-yl) revealed the best insecticidal activity against E. vitis, with the LC₅₀ value of 1.06 mg/L, which were superior to those of the com. insecticidal agents of chlorpyrifos, beta cypermethrin, spinosad, and azadirachtin. These results indicated that novel pyrethrin derivatives containing an 1,3,4-oxadiazole thioether moiety could effectively inhibit P. xylostella, V. aphids, and E. vitis.

Journal of Heterocyclic Chemistry published new progress about 939-99-1. 939-99-1 belongs to chlorides-buliding-blocks, auxiliary class Fluoride,Chloride,Benzyl chloride,Benzene, name is 1-(Chloromethyl)-4-(trifluoromethyl)benzene, and the molecular formula is C4H6N2, Recommanded Product: 1-(Chloromethyl)-4-(trifluoromethyl)benzene.

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