Results 101 to 110 of about 4,839 (215)
Ceric Ammonium Nitrate Promoted Oxidation of Oxazoles
, 2016 The ceric ammonium nitrate promoted oxidations of 4,5-diphenyloxazoles and oxazoles with various substitution patterns have been investigated. This transformation results in the formation of the corresponding imide in good yield and tolerates a wide ...
Risheng Xu (449511) +2 more
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, 2016 A copper(II)-catalyzed oxidative cyclization of enamides to oxazoles via vinylic C–H bond functionalization at room temperature is described.
Chi Wai Cheung (614393) +1 more
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Regiodivergent Synthesis of 4- and 5-Sulfenyl Oxazoles from Alkynyl Thioethers [PDF]
The regiodivergent synthesis of 4- and 5-sulfenyl oxazoles from 1,4,2-dioxazoles and alkynyl thioethers has been achieved. Gold-catalysed conditions are used to favour the formation of 5-sulfenyl oxazoles via β-selective attack of the nitrenoid relative ...
Davies, Paul William; id_orcid +6 more
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Results in ChemistryA new series of aryl derivatives of 4-(1H-imidazol-2-yl)-2-(pyrimidin-5-yl)oxazoles 11a–j were synthesised and their structures were characterized by analytical techniques.
Divya Komirishetti, Vasantha Mittapelli
doaj +1 more source
, 2014 A rapid flow synthesis of oxazolines and their oxidation to the corresponding oxazoles is reported. The oxazolines are prepared at room temperature in a stereospecific manner, with inversion of stereochemistry, from β-hydroxy amides using Deoxo-Fluor ...
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, 2018 Objective: The aim of the present study is to synthesize 2,4-disubstituted oxazoles through palladium/copper comediated direct arylation reaction.Methods: 2,4-disubstituted oxazoles (3a-i) have been synthesized by the reaction of 4-substituted oxazole ...
Saxena, Abhishek S +4 more
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Oxazoles : Perturbations by methyl groups
, 2000 154-155The effect of methyl groups in oxazoles has been studied and the perturbations caused on the oxygen and nitrogen atoms have been rationalized. The Hucke!
Rao, B Rajeshwar
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A new route to functionalised oxazoles
, 1996 Functionalised oxazoles 4 are prepared from amides 1 by rhodium cartenoid N-H insertion reaction to give beta-carbonyl amides 3 followed by cyclodehydration with triphenylphosphine-iodine-triethylamine.
Bagley, M C +4 more
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Trisubstituted oxazoles as simplified Diazonamide A analogues
, 2019 Trīsaizvietoti oksazoli kā vienkāršoti Diazonamīda A analogi. Narvaišs N., zinātniskie vadītāji: Mg. Chem. M. Kazak, Dr. chem. I. Kļimenkovs. Bakalaura darbs, 47 lappuses, 35 attēli, 5 tabulas, 25 literatūras avoti. Latviešu valodā.
Narvaišs, Nauris
core
Modular Approach for Photoinduced Cycloaddition Enabling the Synthesis of Diverse Bioactive Oxazoles
The synthesis of bioactive oxazoles is often inefficient, and the reported methods remain largely unexplored for complex derivatives. To circumvent this issue, we have utilized a metal-free, photomediated [3 + 2] cycloaddition reaction between diazo ...
Ghosh, Ankan +3 more
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