Articles with "tetrahydrofuran" as a keyword



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New antifungal tetrahydrofuran derivatives from a marine sponge-associated fungus Aspergillus sp. LS78.

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Published in 2020 at "Fitoterapia"

DOI: 10.1016/j.fitote.2020.104677

Abstract: Two new tetrahydrofuran derivatives named aspericacids A and B (1 and 2) were isolated from the metabolites produced by the sponge-associated Aspergillus sp. LS78. They represented an unusual type of tetrahydrofuran derivatives, possessing 2,5-disubstituted tetrahydrofuran… read more here.

Keywords: new antifungal; tetrahydrofuran; aspergillus ls78; tetrahydrofuran derivatives ... See more keywords
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Apparent thermodynamic models for determination of the solubility of N-acetyl-1,3-phenylenediamine in eight pure solvents and two different miscible systems at T = (278.15–323.15) K

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Published in 2017 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2017.08.030

Abstract: Abstract In this paper, a gravimetric method was utilized to measure the solubility of the N-acetyl-1,3-phe-nylenediamine under atmospheric pressure in N,N-dimethylformamide, ethyl acetate, acetone, methanol, water, tetrahydrofuran, acetonitrile, isopropanol, (isopropanol + tetrahydrofuran) and (ethyl acetate + tetrahydrofuran) binary mixtures… read more here.

Keywords: tetrahydrofuran; acetyl phenylenediamine; model; solubility acetyl ... See more keywords
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Ring-closing depolymerization of polytetrahydrofuran to produce tetrahydrofuran using heteropolyacid as catalyst

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Published in 2017 at "Polymer Degradation and Stability"

DOI: 10.1016/j.polymdegradstab.2017.08.001

Abstract: Abstract This paper mainly explores the degradation of polytetrahydrofuran to prepare tetrahydrofuran. Various catalysts including different Lewis' acids and protonic acids are investigated in the degradation process of polytetrahydrofuran. The results show that heteropolyacids exhibit… read more here.

Keywords: degradation; catalyst; tetrahydrofuran; phosphotungstic acid ... See more keywords
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Structural Diversity and Multielectron Reduction Reactivity of Samarium(II) Iodido-β-diketiminate Complexes Dependent on Tetrahydrofuran Content.

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Published in 2022 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.2c02101

Abstract: The molecular structures of complexes [Sm(Nacnac)I(thf)n] (Nacnac = HC(C(Me)Ndipp)2-, dipp = 2,6-diisopropylphenyl, thf = tetrahydrofuran) depending on the number of thf ligands are studied. The complete removal of thf from a known complex [Sm(Nacnac)I(thf)2] leads… read more here.

Keywords: thf; nacnac; sm3 nacnac; diversity multielectron ... See more keywords
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Thianthrenation-Enabled Pyrrolidin-2-yl and Tetrahydrofuran-2-yl Methylation of (Hetero)Arenes.

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Published in 2023 at "Organic letters"

DOI: 10.1021/acs.orglett.3c00582

Abstract: The mild and efficient palladium-catalyzed pyrrolidin-2-yl and tetrahydrofuran-2-yl methylation of (hetero)arenes has been developed. A wide range of (hetero)arenes underwent the regioselective thianthrenation to generate the arylthianthrenium triflate, and the developed Pd-catalyzed alkene carboamination and… read more here.

Keywords: methylation hetero; tetrahydrofuran; tetrahydrofuran methylation; hetero arenes ... See more keywords
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Syntheses and crystal structures of new naphthalene- and anthracene-vanadate salts and an unprecedented dimetallabis(anthracene) sandwich complex: [Na(tetrahydrofuran)3][V2(anthracene)2].

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Published in 2022 at "Acta crystallographica. Section C, Structural chemistry"

DOI: 10.1107/s2053229622001255

Abstract: Reduction of bis(naphthalene)vanadium(0) by potassium naphthalene (KNp) in tetrahydrofuran (THF) provides a highly reactive, thermolabile, and so far unisolable brown substance, which affords the first reported derivatives of bis(naphthalene)vanadates. From these solutions, thermally stable (298 K)… read more here.

Keywords: thf; vanadium; bis; c14h10 ... See more keywords
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Crystal structure of bromidopentakis(tetrahydrofuran-κO)magnesium bis[1,2-bis(diphenylphosphanyl)benzene-κ2 P,P′]cobaltate(−1) tetrahydrofuran disolvate

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Published in 2019 at "Acta Crystallographica Section E: Crystallographic Communications"

DOI: 10.1107/s2056989019001671

Abstract: The reduction of CoBr2 by the Grignard reagent p-tolylmagnesium bromide in the presence of 1,2-bis(diphenylphosphanyl)benzene (dbpz) resulted in the d 10, formally Co−1 anion, [Co(dpbz)2]−. The crystal structure of the [MgBr(THF)5]+ (THF is tetrahydrofuran) salt… read more here.

Keywords: bis diphenylphosphanyl; bis; diphenylphosphanyl benzene; crystal structure ... See more keywords
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Structural modification of octadecanoic acid-3,4-tetrahydrofuran diester and the acaricidal activity and mechanism of its derivatives against Sarcoptes scabiei var. Cuniculi

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Published in 2022 at "Frontiers in Pharmacology"

DOI: 10.3389/fphar.2022.953284

Abstract: Octadecanoic acid-3,4-tetrahydrofuran diester is a compound with acaricidal activity isolated and extracted from neem oil. In this study, a series of derivatives were obtained by structural modification of octadecanoic acid-3,4-tetrahydrofuran diester. The acaricidal activity of… read more here.

Keywords: tetrahydrofuran diester; acid; acaricidal activity; tetrahydrofuran ... See more keywords