Results 111 to 120 of about 13,633 (275)
Photocatalytic Vanadium‐Mediated Amination of Benzene With Hydroxylamine
Chemistry – A European Journal, EarlyView.Photochemical activation of N‐phenylphenothiazine (PPT) enables a selective direct benzene amination with hydroxylamine in the presence of various vanadium catalysts under mild reaction conditions. Spectroscopic and kinetic analyses identify a key vanadium(IV)‐hydroxylamine intermediate, elucidate the crucial roles of the acidic medium, the ...
Dana Králová +6 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.A compact C4N4 fluorophore—comprising only four carbons and four nitrogens—shows structure‐dependent fluorescence that can be rationalized by TDDFT and AFIR analyses. Rational structural design controls whether emission is turned ON or OFF through computationally identified CI structures.
Miki Kohei +5 more
wiley +1 more source
Electrochemical Disposal of Hydrazines in Water [PDF]
An electrochemical method of disposal of hydrazines dissolved in water has been devised. The method is applicable to hydrazine (N2H4), to monomethyl hydrazine [also denoted by MMH or by its chemical formula, (CH3)HNNH2], and to unsymmetrical dimethyl ...
Andrews, Craig +6 more
core +1 more source
Electrochemical behaviour of dimethyl hydrazones - part – 1 cyclohexanone dimethyl hydrazone [PDF]
, 1986 The polarographic behaviour of cyclohexanone dimethyl hydrazone at dropping mercury electrode in aqueous alcoholic medium has been investigated in presence of 0.1 M KC1 as supportingelectrolyle.The effect of depolariser concentration, pH, and drop time
Rawat, N.S. +2 more
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Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers
Chemistry – A European Journal, EarlyView.ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda +5 more
wiley +1 more source
Iodophor-Catalyzed Disulfenylation of Amino Naphthalenes with Aryl Sulfonyl Hydrazines
MoleculesAn iodophor-catalyzed direct disulfenylation of amino naphthalenes with aryl sulfonyl hydrazines in water was developed. A series of aryl sulfides were obtained in moderate to excellent yields.
Yutong Yuan +4 more
doaj +1 more source
Asymmetric Reduction of Unactivated Alkenes
Chemistry – A European Journal, EarlyView.Unactivated alkenes rank among the most inert functional groups in synthesis and their selective reduction remains challenging. This Review charts the evolution from classical metal‐catalyzed hydrogenation to radical hydrogen atom transfer (HAT) and emerging biocatalytic concepts, highlighting how complementary mechanistic strategies, including the ...
Nico D. Fessner +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis +2 more
wiley +1 more source
Heterocyclic synthesis with ω-bromoacetophenone: Synthesis of some new pyrazole, pyridazine and furan derivatives [PDF]
, 2008 p-Bromophenacylnitrile derivatives 3a,b react with hydrazinederivatives under different conditions to afford the diaminopyrazoles 4a,b, the pyridazine-6-imines 5a,b,and 5-aminopyrazoles 11a,b.
Abdallah, Tayseer A. +2 more
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