CuBr(2) with 2,2,6,6-tetramethylpiperidyl-1-oxy (TEMPO) has been successfully employed for the aerobic oxidation of primary and secondary benzyl amines in aqueous acetonitrile. Such catalytic systems have previously been used extensively in alcohol oxidation reactions. The same catalyst system was also used for oxidative cross-couplings of benzylamines with anilines. The electronic and steric p...

Anilines are some of the most used class substrates for application in photoinduced electron transfer. N,N-Dialkyl-derivatives enable radical generation ? to N-atom by oxidation followed deprotonation. This approach is however elusive monosubstituted anilines owing fast back-electron transfer (BET). Here we demonstrate that BET can be minimised using photoredox catalysis presence an exogenous a...

Whereas the degradation of monoand dichlorinated anilines has been studied, very little is known about fluorinated anilines. Therefore, the objective of this study was to investigate, under aerobic conditions, the degradation of 2-, 3and 4-fluoroaniline by a previously isolated pure bacterium, designated as strain F11. This microorganism, identified as Labrys portucalensis, was isolated from a ...

The reactions of gallium trichloride with phenyl and deuterio-phenyl azides, as well as with 4-methoxyphenyl azide and deuterium isotopomers, were examined by product analysis, CW EPR spectroscopy and pulsed ENDOR spectroscopy. The products included the corresponding anilines together with 4-aminodiphenylamine type dimers, and polyanilines. Complex CW EPR spectra of the radical cations of the d...

Historically, Hammett constants have been extremely effective in describing the influence of substituents on chemical reactivity and other physical and chemical properties, whereas variables derived from quantum chemical calculations have generally been less effective. Taking the experimental pK(a)s of substituted anilines as a representative physicochemical property, five ab initio quantum che...

Anionic NHC ligands recently developed in our group, derived from N-iminoimidazolium ylides, were used to synthesize NHC-iridium(III) complexes. Their catalytic activities evaluated the amine alkylation of anilines using borrowing hydrogen catalysis. The high-yielding synthesis a small library complexes allowed rapid screening ideal steric bulk unit and basicity anionic tether for investigated ...

Carbon nanodots (C-dots) are a kind of fluorescent carbon nanomaterials, composed of polyaromatic carbon domains surrounded by amorphous carbon frames, and have attracted a great deal of attention because of their interesting properties. There are still, however, challenges ahead such as blue-biased photoluminescence, spectral broadness, undefined energy gaps and etc. In this report, we chemica...

Nucleophilic substitution reactions of Y-aryl methyl (8) and Y-aryl propyl (10) chlorothiophosphates with substituted anilines and deuterated anilines are investigated kinetically in acetonitrile at 55.0 C. A concerted mechanism is proposed for 8 based on the negative ρXY (= –0.23) value, while a stepwise mechanism with a rate-limiting leaving group departure from the intermediate is proposed f...

The asymmetric addition of diazoacetylferrocene to styrene derivatives give optically active cyclopropyl acetylferrocenes (ee up 96%) was carried out using chiral ruthenium porphyrins as homogeneous catalysts. Intermolecular N–H functionalization anilines and amino esters by means carbenoid-induced insertion also observed tetraphenylporphyrin iron chloride catalyst.

a novel and safe method for nitration of phenols, anilines and other aromatic compounds has beenfound to be feasible with alumina sulfuric acid (asa) as catalyst and mg (no3)2.6h2o as nitrating agent inneat water as solvent. the use of water makes this method compatible with the green chemistry approach