Results 11 to 20 of about 913 (183)
Different Patterns of Pd-Promoted C-H Bond Activation in (Z)-4-Hetarylidene-5(4H)-oxazolones and Consequences in Photophysical Properties [PDF]
InorganicsThis work aims to amplify the fluorescence of (Z)-4-hetarylidene-5(4H)-oxazolones 1 by suppression of the hula-twist non-radiative deactivation pathway by C^N-orthopalladation of the 4-hetarylidene ring.
Miguel Martínez +6 more
doaj +2 more sources
SmartMatLight‐activated covalent adaptable networks (CANs) can reversibly rearrange their structures under a photonic field, enabling adaptability and customization for various materials applications.
Wai Lean Koay +7 more
doaj +2 more sources
Synthesis of Bis(amino acids) Containing the Styryl-cyclobutane Core by Photosensitized [2+2]-Cross-cycloaddition of Allylidene-5(4H)-oxazolones. [PDF]
Int J Mol Sci, 2023 The irradiation of 2-aryl-4-(E-3′-aryl-allylidene)-5(4H)-oxazolones 1 with blue light (456 nm) in the presence of [Ru(bpy)3](BF4)2 (bpy = 2,2′-bipyridine, 5% mol) gives the unstable cyclobutane-bis(oxazolones) 2 by [2+2]-photocycloaddition of
Sierra S +7 more
europepmc +2 more sources
4-Ethoxymethylene-2-phenyl-5(4H)-oxazolone in reactions with various heterocyclic amines [PDF]
Известия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, 2023 The analysis of the literature data has showed that there is no information on the behavior in 5(4H)-oxazolones with amines under the conditions of a sealed vessel reactor, which makes it possible to obtain heterocyclic systems with diff erent amines. We
Miroshnikova, Anna V. +3 more
doaj +1 more source
Synthesis of 1,2,4-Triazolines and Triazoles Utilizing Oxazolones
, 2016 We describe herein a convenient method for the synthesis of 1,2,4-triazolines using oxazolones and azodicarboxylates. Subsequent treatment of these 1,2,4-triazolines with NaOH provides efficient access to the corresponding ...
Rahman Shah Zaib Saleem (1989166) +1 more
core +5 more sources
, 2016 Described herein is a novel method for the synthesis of 3,4,5-trisubstituted 2-oxazolones featuring the first Pd-catalyzed dehydrogenative alkenylation of 2-oxazolones, which is realized by employing 10 mol % of Pd(OAc)2 as the catalyst and the use of ...
Lina Wang (44695) +3 more
core +3 more sources
Zanco Journal of Pure and Applied Sciences, 2023 A new series of 3,5-dihydro-4H-imidazol-4-one derivatives incorporating thiazole moiety have been readily prepared through the nucleophilic acyl substitution reactions of 5(4H)-oxazolones derivatives (2A-2J) with 4-(benzo[d]thiazol-2-yl) aniline (3 ...
Nabard Ghafur Ahmed, Aras N. Hamad
doaj +1 more source
, 2023 An efficient divergent approach to functionalized naphthalene derivatives, the naphthalenamides, via base-mediated and silver-catalyzed cyclization has been developed using enone-oxazolones as the precursors.
Kanyanat Boontan (17407108) +4 more
core +1 more source
A novel application of Co3O4@SiO2 nanocomposite as an efficient and robust catalyst for the preparation of some imidazolone derivatives [PDF]
Journal of Particle Science and Technology, 2018 In the present work, a simple, green and efficient procedure for the synthesis of imidazolone derivatives is described via the reaction of oxazolones and different arylamines in the presence of Co3O4@SiO2 nanocomposite as a catalyst under solvent-free ...
Taleb Asadi +2 more
doaj +1 more source
Journal of Photochemistry and Photobiology, 2021 New derivatives of the oxazolone compounds 4(a-j) and (7a-e) containing azo dye moieties have been prepared via the Erlenmeyer reaction of their azo dye precursors.
Fawzia F. Albelwi +6 more
doaj +1 more source