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Showing 1 to 10 of 10 for “"Isoxazoline"”.
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Enantioenriched Homoaldol Products, Beta-Substituted Ketones, Isoxazolines, and Beta-Lactams Through Elaboration of Allylamine Asymmetric Homoenolate Equivalents: Synthesis and Elucidation of Reaction Pathways
… of enantioenriched enals provides cyclopentyl isoxazoline products in 64--81% yields and with diastereomeric ratios of 78:22 to 84:16. An isoxazoline was converted into an enantiomerically pure beta-lactam via a beta-amino alcohol and a beta-amino acid in six synthetic steps in 25% overall …
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Synthesis and evaluation of polystyrene based soluble polymeric supports for organic synthesis
… polymers were utilized for the synthesis of ?2-isoxazoline compounds. The target compounds were synthesized via 1,3-dipolar cycloaddition reactions between polymer bound alkenes and nitrile oxides generated in situ from their corresponding aldoximes. The cleaved ?2-isoxazoline compounds were …
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Marine Natural Products Chemistry of a Caribbean Tunicate and a Palau Sponge
… metabolites of the spirocyclohexadiene-isoxazoline class, named subereamides, have been isolated from the Palau sponge Suberea laboutei along with known psammaplysins A, B and D, and ceratinamide B. In addition, a new cytotoxic dibromotyramine derivative, subereamine, was isolated from …
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The functionalization of fullerenes and nanocarbon materials for photovoltaics and other applications
… a minority component. In Chapter 6, we describe isoxazoline-functionalized fullerenes and carbon nanotubes and explore their transition metal complexes. Co(II) and Fe(II) complexes on carbon nanotubes are used for electrocatalytic oxygen reduction.
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USING B-STRAND AND B-HAIRPIN PEPTIDOMIMETICS INDUCED BY CONSTRAINED AMINO ACIDS TO MODULATE THE AGGREGATION OF THE MICROTUBULE ASSOCIATED PROTEIN TAU: DESIGN, SYNTHESIS AND EVALUATION
… Then, the employment of the non-natural β2,2-isoxazoline unit into a peptide sequence was used to stabilize two different secondary structures, either in β-hairpin or extended. These structures were confirmed through a combination of CD, IR, and NMR analyses in aqueous solvents. The stabilized …
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ΜΕΛΕΤΗ ΑΝΤΙΔΡΑΣΕΩΝ 1,3-ΔΙΠΟΛΙΚΗΣ ΚΥΚΛΟΠΡΟΣΘΗΚΗΣ ΣΕ ΕΤΕΡΟΚΥΚΛΙΚΑ ΣΥΣΤΗΜΑΤΑ
… SPIRO CYCLOADDUCTS WITH NUCLEOPHILES LEADS TO ISOXAZOLINE OR PYRAZOLINE A-AMINOACID DERIVATIVES. ESPECIALLY, CLEAVAGE REACTION WITH GLYCINE ETHYLESTER RESULTED DIPEPTIDES CONTAINING HETEROCYCLIC RING. IN A COMPARISON WITH THE ABOVE STUDIED DIPOLAROPHILES, CYCLOADDITIONS OF METHYL-(Z)- AND …
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Automated synthesis and evaluation of potential new anti-microbial agents
… of some fatty acid derivatives, containing an isoxazoline group, which may inhibit mycolic acid synthesis in mycobacteria. Both the PEG-bound products and the cleaved, isolated products themselves were tested against M.fortuitum and some low levels of antimycobacterial activity were observed, …
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Application of Pd Catalyzed Alkylation: Synthesis of Bicyclic Furans, Isoxazolines and New Cyclopentane Amino acid Analogs
… to synthesize new heterocycles including furans, isoxazolines and new cyclopentane amino-acid analogs in an enantioselective manner. The stereochemical outcome of these reactions is influenced by desymmetrization catalyzed by hydrolytic enzymes namely lipases. Chapter 1 reviews the recent advances …
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Influence of Annual Bluegrass on Putting Green Trueness and Control of Weedy Poa Species in Kentucky Bluegrass and Creeping Bentgrass Turf
… limited and ineffective. Methiozolin is a new isoxazoline herbicide that controls annual bluegrass on putting greens and shows promise for possible weed control in fairways. Kentucky bluegrass (Poa pratensis L.) is among the most common turfgrass species used for golf fairways in the Northern …
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Synthesis Towards Fulminic Acid and Its Derivatives in 1, 3-Dipolar Cycloaddition Reactions.
… reactions with dipolarophiles to form isoxazolines and/or its dimers. This procedure represents a novel, safe general method for the one-step generation of fulminic acid, which complements existing potentially explosive protocols.</p>