Tag: M.W=200-250

Liu, Jing-Bo published the artcileAnthranilic diamides derivatives as potential ryanodine receptor modulators: Synthesis, biological evaluation and structure activity relationship, HPLC of Formula: 1869-22-3, the publication is Bioorganic & Medicinal Chemistry (2018), 26(12), 3541-3550, database is CAplus and MEDLINE.

A series of novel anthranilic diamides derivatives (7a-s) containing halogen, trifluoromethyl group and cyano group were designed, synthesized, and characterized by m.p., ¹H NMR, ¹³C NMR and elemental analyses. The bioactivity revealed that most of them showed moderate to excellent activities against oriental armyworm (Mythimna separata) and diamondback moth (Plutella xylostella). Above all, the larvicidal activity of I against oriental armyworm was 100% and 40% at 0.25 and 0.1 mg L^-1, comparable to that of the standard chlorantraniliprole (100%, 0.25 mg L^-1 and 20%, 0.1 mg L^-1). What is more, 7o against diamondback moth displayed 90% insecticidal activity at 0.01 mg L^-1, superior to chlorantraniliprole (45%, 0.01 mg L^-1). The experiments I on the American cockroach (Periplaneta Americana) heart beating rates (Dorsal vessel) and contractile force were compared with chlorantraniliprole. In addition, I could affect the calcium homeostasis in the central neurons of the third larvae of oriental armyworm, which revealed that the ryanodine receptor is the potential target of I. The d. functional theory (DFT) calculation results revealed the amide bridge, the benzene ring of anthraniloyl moiety and pyrazole ring might play an important role in the insecticidal activity through hydrophobic interactions and π-π conjugations.

Bioorganic & Medicinal Chemistry published new progress about 1869-22-3. 1869-22-3 belongs to chlorides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Chloride,Hydrazine,Amine,Benzene, name is 1-(2-Chloro-5-(trifluoromethyl)phenyl)hydrazine, and the molecular formula is C7H6ClF3N2, HPLC of Formula: 1869-22-3.

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

Li, Xiao-Gen published the artcileHydrogenation of Esters by Manganese Catalysts, Related Products of chlorides-buliding-blocks, the publication is Advanced Synthesis & Catalysis (2022), 364(4), 744-749, database is CAplus.

The hydrogenation of esters catalyzed by a manganese complex of phosphine-aminopyridine ligand was developed. Using this protocol, a variety of (hetero)aromatic and aliphatic carboxylates including biomass-derived esters and lactones were hydrogenated to primary alcs. R¹CH₂OH [R¹ = Me, Ph, 2-furyl, etc.] with 63-98% yields. The manganese catalyst was found to be active for the hydrogenation of Me benzoate, providing benzyl alc. with turnover numbers (TON) as high as 45,000. Investigation of catalyst intermediates indicated that the amido manganese complex was the active catalyst species for the reaction.

Advanced Synthesis & Catalysis 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, Related Products of chlorides-buliding-blocks.

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

Song, Weiguo published the artcileDevelopment of Improved Materials for Environmental Applications: Nanocrystalline NaY Zeolites, Application of Dichloro(methyl)(octyl)silane, the publication is Environmental Science and Technology (2005), 39(5), 1214-1220, database is CAplus and MEDLINE.

Two nanocrystalline NaY samples were synthesized with Si/Al ratios of 1.8 and crystal sizes of 23 and 50 nm, resp. The synthesized NaY zeolites were characterized by powder X-ray diffraction, SEM, nitrogen adsorption isotherms, silicon solid-state magic angle spinning NMR and FTIR spectroscopy. A com. NaY sample was analogously characterized for comparison with the synthesized nanocrystalline NaY. FTIR spectroscopy of adsorbed pyridine was used to elucidate the adsorption sites on the different NaY samples. More Bronsted acid sites and more silanol sites were detected on the nanocrystalline NaY zeolites, relative to the com. NaY. The nanocrystalline NaY exhibited increased adsorption capacities for representative pollutant mols., such as toluene (�0%) and nitrogen dioxide (�0%), relative to com. NaY. Functionalization of nanocrystalline NaY was examined as a method for tailoring the properties of nanocrystalline zeolites for specific environmental applications through the control of zeolite properties, such as hydrophobicity.

Environmental Science and Technology 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 C7H7ClN2S, Application of Dichloro(methyl)(octyl)silane.

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

Li, Chengxi published the artcileChemo- and regioselective defluorinative annulation of (trifluoromethyl)alkenes with pyrazolones: synthesis and insecticidal activity of 6-fluoro-1,4-dihydropyrano[2,3-c]pyrazoles, Safety of 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene, the publication is Organic Chemistry Frontiers (2022), 9(17), 4692-4698, database is CAplus.

The chemo- and regioselective defluorinative [3 + 3] annulation of (trifluoromethyl)alkenes and pyrazolones was reported that gives rise to various useful 6-fluoro-1,4-dihydropyrano[2,3-c]pyrazoles I [R = Ph, 4-MeC₆H₄, 4-ClC₆H₄, etc.; R¹ = Ph, 3-MeC₆H₄, 4-ClC₆H₄, etc.; R² = Me, Et, Bn, etc.] in high yields. This reaction distinguished the different nucleophilic sites of pyrazolones and featured mild conditions, a broad substrate scope, and gram-scalability. A simple derivation of the obtained 6-fluoro-1,4-dihydropyrano[2,3-c]pyrazoles efficiently afforded diverse useful compounds Significantly, compound I [R = 4-F₃CC₆H₄, R¹ = 2-ClC₆H₄, R² = Me] exhibited up to 100% insecticidal activity against Plutella xylostella, which was a destructive pest worldwide. Mechanism studies indicated that this reaction proceeded via a chemo- and regioselective S_N2’/S_NV pathway and that the double defluorinative alkylation of pyrazolones with (trifluoromethyl)alkenes was completely inhibited.

Organic Chemistry Frontiers 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, Safety of 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene.

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

Stevens, Jason M. published the artcileAdvancing Base Metal Catalysis through Data Science: Insight and Predictive Models for Ni-Catalyzed Borylation through Supervised Machine Learning, Application of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate, the publication is Organometallics (2022), 41(14), 1847-1864, database is CAplus.

An expansive data set containing 33 substrates, 36 unique monophosphine ligands, and two solvents was produced for the NiCl₂·6H₂O catalyzed aryl (pseudo)halide borylation with tetrahydroxydiboron for a total of 1632 reactions. Exploratory data anal. revealed excellent reaction performance with simple triarylphosphines (P(p-F-Ph)₃ and P(p-Anis)₃) and mixed aryl-alkyl phosphines (PPh₂Cy), in addition to the previously established high performance with Cy-JohnPhos. The data were used to train machine learning models that predicted out of sample reaction performance with a root-mean-square error of 18.4. The important features extracted from the models identified three phosphine parameters that offered reliable reactivity thresholds for identifying optimal ligand performance. The predictive models showed reasonable performance for predicting reaction yields employing ligands not included in model training, while the important feature boundaries accurately classified the performance of 10 of the 12 external ligands examined

Organometallics 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 0, Application of Ethyl 2-(4-chlorophenoxy)-2-methylpropanoate.

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

Lu, Xing published the artcileCatalytic Synthesis of Functional Silicon-Stereogenic Silanes through Candida antarctica Lipase B Catalyzed Remote Desymmetrization of Silicon-Centered Diols, Synthetic Route of 14799-93-0, the publication is European Journal of Organic Chemistry (2013), 2013(26), 5814-5819, database is CAplus.

Si-containing diols were synthesized and used in lipase-catalyzed remote desymmetrization. E.g., reaction of 3,3′-[methyl(phenyl)silanediyl]bis(3,1-phenylene)dimethanol with acetic anhydride in CHCl₃ in the presence of Candida antarctica lipase B gave 90% yield of 3-((3-(hydroxymethyl)phenyl)(methyl)(phenyl)silyl)benzyl acetate (78% ee). This synthetic method is valuable in the construction of optically active Si-stereogenic organosilicon compounds Good enantioselectivities of the remote desymmetrization was achieved with Candida antarctica lipase B (CAL-B) (up to 90:10 er).

European Journal of Organic Chemistry 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, Synthetic Route of 14799-93-0.

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

Yang, Shizhong published the artcilePreliminary study on 6-coumarinsulfonyl chloride as luminescence labeling reagent, Application of Coumarin-6-sulfonyl chloride, the publication is Fenxi Ceshi Xuebao (1993), 12(3), 49-52, database is CAplus.

Excessive 6-coumarinsulfonyl chloride (C6SCL) is reacted with L-alanine in pH 9.11 buffer solution (H₃BO₃-NaOH) at 40°C for 40 min and the reaction mixture is extracted with Et acetate. When the extract is dropped on a polyamide membrane and developed with formic acid-water (1 + 1) solution, the alanine C6SCL derivative is separated The R_f value is 0.67, 0.47 and 0.50 for the derivative, C6SCL and C6SOH, resp. After spraying the spot of derivative with 1 mol L^-1 NaOH solution and pre-illuminating and drying under UV light for 10 min, fluorescence intensity of the spot has a good linear relationship with amount of alanine in the range of (4-60) × 10^-11 mol. In addition, more intensive room temperature phosphorescence (RTP) of the derivation is induced by using 1.0 mol/L Pb(OAc)₂ as the heavy atom perturber and filter paper as solid substrate. All results show that the C₆SCL can be expected to serve as not only a fluorescence labeling reagent, but also a RTP one for amino acid etc.

Fenxi Ceshi Xuebao published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C10H10O2, Application of Coumarin-6-sulfonyl chloride.

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

Yang, Shizhong published the artcileA newly developed luminescent label – synthesis and properties of 6-coumarinsulfonyl chloride, Related Products of chlorides-buliding-blocks, the publication is Fenxi Huaxue (1992), 20(2), 202-4, database is CAplus.

The title compound (I) was prepared by reaction if coumarin with ClSO₃H. Effects of pH, lighting and surfactant on the fluorescence properties of its aqueous solution, and the reactiveness to amino acids etc. are studied. The results show that both basic condition and enough lighting are necessary conditions for obtaining stabilized and strong fluorescence from aqueous solution of I, and quaternary ammonium salt surfactant can enhance its fluorescence intensity. It also showed that this simple derivative of coumarin can be used as a luminescence labeling reagent for amino acid, amines etc. which has reactivity with SO₂Cl group.

Fenxi Huaxue published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C8H8BFO2, Related Products of chlorides-buliding-blocks.

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

Zhao, Yu. published the artcileSynthesis and molecular recognition study of 6-Cs-β-CD, HPLC of Formula: 10543-42-7, the publication is Guangpuxue Yu Guangpu Fenxi (1998), 18(4), 464-467, database is CAplus.

The reagents 6-coumarinsulfonyl-β-cyclodextrin (6-Cs-β-CD) with mol. recognition function were synthesized and identified. Both basic condition and enough illumination were necessary for obtaining stable and strong fluorescence. By using 6-Cs-β-CD as the host, cyclohexanol, cyclohexene, cyclohexane, or bromocyclohexane as the guest, the recognition properties were studied. The affinity of 6-Cs-β-CD and the guest is distinct with different hydrophobicity of the guest.

Guangpuxue Yu Guangpu Fenxi published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C28H41N2P, HPLC of Formula: 10543-42-7.

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

Ashraf, Muhammad Awais published the artcileSustainable radical approaches for cross electrophile coupling to synthesize trifluoromethyl- and allyl-substituted tert-alcohols, COA of Formula: C8H4ClF3O, the publication is iScience (2021), 24(12), 103388, database is CAplus and MEDLINE.

Trifluoromethylated mols. have gained privileged recognition among the medicinal and pharmaceutical chemists. Sustainable photoredox- and electrochem. processes were employed to facilitate the relatively less explored radical cross-electrophile coupling to access trifluoromethyl- and allyl-substituted tert-alcs. I (Ar = Ph, 2-ClC₆H₄, 2-naphthyl, etc.). Reactions proceed through trifluoromethyl ketyl radical and allyl radical intermediates, which underwent challenging radical-radical cross-coupling. The developed transformations are mild and chemo-selective to give cross-coupled products and deliver a wide range of valuable trifluoromethyl- and allyl-containing tertiary alcs. Both processes can also be applied for the synthesis of amine variant containing trifluoromethyl and allyl moiety, which is considered as amide bioisostere.

iScience 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, COA of Formula: C8H4ClF3O.

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