Results 31 to 40 of about 1,584,934 (220)
Quantification of the electrophilic reactivities of nitroalkenes [PDF]
, 2012 While a large variety of nucleophiles (N and sN) have been characterized according to eq 1.3, the number of E parameters for electrophiles, and specifically for different classes of Michael acceptors remains relatively small.
Zenz, Ivo
core +1 more source
Electrosynthesis of stabilized diazo compounds from hydrazones [PDF]
, 2022 An electrochemical synthesis of diazo compounds from hydrazones in yields as high as 99% was performed. This method was elaborated as a useful synthetic method and demonstrated on various diazo compounds (24 examples). Apart from exhibiting an efficiency
Caron, Laurent +13 more
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Iodine-catalyzed diazo activation to access radical reactivity
Nature Communications, 2018 Radical reactivity of diazo compounds, useful organic building blocks, is yet underexplored. Here, the authors report an iodine-catalyzed radical activation of diazo compounds affording a variety of substituted cyclopropanes, pyrroles and epoxides under ...
Pan Li +5 more
doaj +1 more source
Synthesis and Antibacterial Activity of Some New Phenothiazine Derivatives
E-Journal of Chemistry, 2007 A series of some new phenothiazine derivatives were synthesized with the objective for evaluation as antimicrobials. The title compounds were prepared by a five step synthesis scheme.
Pawan Kumar Swarnkar +3 more
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Copper-catalyzed intermolecular formal (5 + 1) annulation of 1,5-diynes with 1,2,5-oxadiazoles
Communications Chemistry, 2023 One-carbon homologation reactions based on one-carbon insertion into the N−O bond of heterocycles have received tremendous interest over the past decades.
Can-Ming Chen +6 more
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Chemistry Proceedings, 2022 The data obtained by the authors in the field of carbon cluster chemistry, namely, the catalytic cycloaddition of diazo compounds of modern pharmacologically significant and natural compounds to C60-fullerene under the action of complex Pd–catalysts, are
Liliya L. Khuzina +2 more
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Green Synthesis and CatalysisA copper-catalyzed three-component reaction of diazo compounds, nitriles, and azodicarboxylates to construct 2,3-dihydro-1,2,4-triazoles is reported. Key to the success is the utilization of azodicarboxylates to trap the in-situ formed nitrile ylides ...
Bao-Gui Cai, Qian Li, Jun Xuan
doaj +1 more source
Ultrasound Assisted Synthesis Of Pyrazolone Derivatives [PDF]
مجلة التربية والعلم, 2013 The diazonium salt of 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol- 2-one (4-aminoantipyrine) was coupled with ethylacetoacetate and ethyl benzoylacetate to give the corresponding diazo compounds under basic media.
Badie Ahmed, Jasim Abdullah
doaj +1 more source
Synthesis and Antibacterial Activity of bis Heterocyclic Derivatives of 1,3,4-thiadiazole
Iraqi Journal of Pharmaceutical Sciences, 2017 The Chemistry of heterocyclic sulphur and nitrogen containing compounds have a great role in the field of scientific studies, The 2-amino 5-mercapto-1,3,4-thiadiazole ring for instance, has gained more importance in recent years because they are ...
Ahlam A. Al-jubouri +1 more
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Asymmetric formal C–C bond insertion into aldehydes via copper-catalyzed diyne cyclization
Nature Communications, 2023 The formal C–C bond insertion into aldehydes is an attractive methodology for the assembly of homologated carbonyl compounds. However, the homologation of aldehydes has been limited to diazo approach and the enantioselective reaction was rarely developed.
Cui-Ting Li +6 more
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