Aminophenols

Mitchell, Stephen C.; Waring, Rosemary

doi:10.1002/14356007.a02_099

Cited by 34 publications

(32 citation statements)

References 99 publications

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“…Table 2. Speciation of molybdenum and vanadium in function of pH [18] . For the retention of 50 mg/L of V(V) by PClMETA and IRA-402(Cl) resins showed a good performance, retaining over 70% of the V(V) at pH between 4 and 10.…”

Section: Effect Of Ph In the Absorptionmentioning

confidence: 99%

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SYNTHESIS AND CHARACTERIZATION OF POLY([(2-methacryloyloxy) ethyl]) TRIMETHYLAMONNIUM CHLORIDE) RESIN WITH REMOVAL PROPERTIES FOR VANADIUM(V) AND MOLYBDENUM(VI)

Morales¹,

Rivas²,

González³

2016

J. Chil. Chem. Soc.

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It was successful synthesized the ion exchange resin poly([(2-methacryloyloxy) ethyl]) trimethylammonium chloride) PClMETA by radical polymerization to study the removal properties towards vanadium (V) and molybdenum (VI) and compared with the commercial resin AmberliteIRA-402 which contains the same functional group. The resin was characterized by FT-IR and SEM. Parameters including water adsorption capacity, effect of the pH, maximum retention capacity of the metal ions, elution, regeneration, adsorption time, and adsorption isotherms were studied. All the studies were carried out in Batch and Column equilibrium procedures. Thermodynamic parameters such as enthalpy, entropy, and free energy were calculated. The PClMETA resin showed higher capacity to remove V(V) and Mo(VI) from water solution than Amberlite IRA-402 commercial resin. The higher capacity displayed by PClMETA resin was attributed to the higher degree of swelling and different structure that Amberlite IRA-402 resin.

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Section: Effect Of Ph In the Absorptionmentioning

confidence: 99%

“…Both ions are built up from linked MoO 6 octahedral. At pH 0.9 MoO 3 precipitates and in more acidic solutions the [MoO 2 ] 2+ ion is formed [18].…”

Section: Introductionmentioning

confidence: 99%

SYNTHESIS AND CHARACTERIZATION OF POLY([(2-methacryloyloxy) ethyl]) TRIMETHYLAMONNIUM CHLORIDE) RESIN WITH REMOVAL PROPERTIES FOR VANADIUM(V) AND MOLYBDENUM(VI)

Morales¹,

Rivas²,

González³

2016

J. Chil. Chem. Soc.

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“…Furthermore, numerous pharmaceutical molecules incorporate amides as core unit; N-acetyl-4-aminophenol and local anesthetic lidocaine and dibucaine are just few examples [1][2][3][4]. Thus, considering their importance as intermediate in the industry and as precursor in drug formulation, the development of simpler and more economical process for amide synthesis has been of great interest over the last twenty years [5].…”

Section: Introductionmentioning

confidence: 99%

“…Amides can also be synthesized by a two step reaction: oximation of ketones, a quite facile reaction generally carried out with hydroxylamine hydrochloride or sulfate in an aqueous or water-ethanol solution, followed by Beckmann rearrangement in mineral acids [4][5][6][7][8][9][10]. The first step proceeds in the presence of a base to allow the formation of the free hydroxylamine that then attacks the carbonyl group of the ketone.…”

Section: Introductionmentioning

confidence: 99%

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One-pot oximation–Beckmann rearrangement of ketones and aldehydes to amides of industrial interest: Acetanilide, caprolactam and acetaminophen

Aricò¹,

Quartarone

Rancan

et al. 2014

Catalysis Communications

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Bandgap Engineering in OH‐Functionalized Silicon Nanocrystals: Interplay between Surface Functionalization and Quantum Confinement

Bürkle

Lozac’h

McDonald

et al. 2017

Adv Funct Materials

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In this work, a systematic first-principles study of the quasi-band structure of silicon nanocrystals (Si-NCs) is provided, focusing on bandgap engineering by combining quantum confinement of the electronic states with OH surfacefunctionalization. A mapping between the bandgap, Si-NC diameter, and the degree of hydroxide coverage is provided, which can be used as a guideline for bandgap engineering. Complementary to first-principles calculations, the photoluminescence (PL) wavelength of Si-NCs in the quantum-confinement regime is measured with well-defined diameters between 1 and 4 nm. The Si-NCs are prepared by means of a microplasma technique, which allows a surfactant-free engineering of the Si-NCs surface with OH groups. The microplasma treatment technique allows us to gradually change the degree of OH coverage, enabling us, in turn, to gradually shift the emitted light in the PL spectra by up to 100 nm to longer wavelengths. The first-principles calculations are consistent with the experimentally observed dependence of the wavelengths on the OH coverage and show that the PL redshift is determined by the charge transfer between the Si-NC and the functional groups, while on the other hand surface strain plays only a minor part.

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Aminophenols

Abstract: The article contains sections titled: 1. Aminophenols 1.1. Physical Properties … Show more

Cited by 34 publications

References 99 publications

SYNTHESIS AND CHARACTERIZATION OF POLY([(2-methacryloyloxy) ethyl]) TRIMETHYLAMONNIUM CHLORIDE) RESIN WITH REMOVAL PROPERTIES FOR VANADIUM(V) AND MOLYBDENUM(VI)

SYNTHESIS AND CHARACTERIZATION OF POLY([(2-methacryloyloxy) ethyl]) TRIMETHYLAMONNIUM CHLORIDE) RESIN WITH REMOVAL PROPERTIES FOR VANADIUM(V) AND MOLYBDENUM(VI)

One-pot oximation–Beckmann rearrangement of ketones and aldehydes to amides of industrial interest: Acetanilide, caprolactam and acetaminophen

Bandgap Engineering in OH‐Functionalized Silicon Nanocrystals: Interplay between Surface Functionalization and Quantum Confinement

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