Results 31 to 40 of about 9,421 (215)
Acta Crystallographica Section E: Crystallographic Communications, 2019 The title compound, C20H16Cl2N2O3S, is built up from a dihydrobenzothiazine moiety linked by –CH– and –C2H4– units to 2,4-dichlorophenyl and 2-oxo-1,3-oxazolidine substituents, where the oxazole ring and the heterocyclic portion of the ...
Brahim Hni +6 more
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MR-93A, a new oxazole from Trichoderma harzianum KCTC 0114BP
, 1995 The ethylacetate extract of Trichoderma barzianum KCTC 0114BP cultures afforded a novel oxazole, MR-93A [1]. The structures of 1 was elucidated as 4-(3,4-dihydroxy-(E)-1-pentrenyl)-oxazole by spectroscopic methods ...
Choong Hwan Lee +4 more
core +1 more source
Helium nanodroplet infrared spectroscopy of oxazole-(water)n (n = 1,2) clusters
AIP Advances, 2021 The mass-selective infrared (IR) spectra of oxazole-(D2O)n≤2 complexes embedded in helium droplets are recorded in the spectral range of 2565–2800 cm−1. The experimental IR spectra are assigned by comparing with quantum chemical calculations at the MP2/6-
Tarun Kumar Roy +4 more
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Active Metal Template Synthesis of Rotaxanes From BINOL‐Phosphate Macrocycles
Angewandte Chemie International Edition, EarlyView.The use of macrocyclic BINOL‐phosphates allows for the active metal template synthesis of [2]rotaxanes via Cu(I)‐mediated alkyne‐azide cycloaddition. DFT calculations, control experiments, and kinetic experiments support a dinuclear phosphate‐Cu2 intermediate.
Nikolai Brodt +10 more
wiley +1 more source
Molecules, 2013 Aiming for the synthesis of new heterocyclic compounds containing a sulfonamido moiety suitable for use as antibacterial agents, the precursor ethyl {[4-N-(4,6-dimethylpyrimidin-2-yl)sulfamoyl]phenylazo}cyanoacetate was reacted with a variety of active ...
Eman A. El-Bordany +2 more
doaj +1 more source
C‐Terminal Functionalization Methods of Amino Acids, Peptides, and Proteins
Chemistry – A European Journal, EarlyView.C‐terminal functionalization offers powerful routes to peptide and protein diversification, yet epimerization, hydrolysis, and selectivity remain key challenges. This Review surveys enzymatic, decarboxylative, and condensation strategies, highlighting advances toward chemo‐ and regioselective, protecting‐group‐free, atom‐efficient methods applicable to
Jay Hanssens +3 more
wiley +1 more source
, 1970 L’analyse cryométrique des systèmes binaires : solvant inertes-oxazole révèle la présence d’interactions moléculaires oxazole-oxazole. Si on admet que les écarts à l’idéalité observés expérimentalement sont dus uniquement à l’existence de complexes ...
Roger Meyer +2 more
core +1 more source
Synthesis of donor-acceptor benzobis(oxazole) small molecules [PDF]
, 2015 A variety of symmetric, π-conjugated organic chromophores were synthesized using trans-benzobis(oxazole) as an acceptor and the core of dye, changing the donating moieties in the 2- and 6-positions.
Klimavicz, James
core +1 more source
Angewandte Chemie, Volume 138, Issue 41, 5 October 2026.Modular access to underexplored C5‐sulfenyl thiazoles via an intermolecular Pummerer rearrangement is reported. The methodology exhibits a broad functional group tolerance enabling the seamless design of trisubstituted thiazole cores bearing a sulfur handle for further elaboration.
Joe L. Smy +5 more
wiley +2 more sources
Enantiomeric Separation of New Chiral Azole Compounds
Molecules, 2021 Twelve new azole compounds were synthesized through an ene reaction involving methylidene heterocycles and phenylmaleimide, producing four oxazoles, five thiazoles, and one pyridine derivative, and ethyl glyoxylate for an oxazole and a thiazole compound.
Marziyeh E. Kenari +9 more
doaj +1 more source