Publikace detail

Study of dehalogenation of halogenoanilines using Raney Al-Ni alloy in aqueous medium at room temperature

Autoři: Weidlich Tomáš | Krejčová Anna | Prokeš Lubomír

Rok: 2010

Druh publikace: článek v odborném periodiku

Název zdroje: Monatshefte fur Chemie

Název nakladatele: Springer

Strana od-do: 1015-1020

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Studium dehalogenace halogenanilinů s použitím Raneyovy Al-Ni slitiny ve vodném prostředí za laboratorní tepoty	Pro studium kinetiky hydrodehalogenace halogenanilinů rozpuštěných ve vodě působením Al-Ni byl použit edetanový pufr o pH=10,9. Rychlost dehalogenace klesá v pořadí: 3-chloranilin, 4-bromanilin, 4-chloranilin, 4-fluoranilin.	redukce; odstranění AOX; NMR spektroskopie; kovy; ICP-OES; kinetika
eng	Study of dehalogenation of halogenoanilines using Raney Al-Ni alloy in aqueous medium at room temperature	Dehalogenation of halogenated anilines by action of powdered aluminium-nickel alloy in aqueous alkaline solution at room temperature has been studied. The reaction course was monitored by means of H-1 nuclear magnetic resonance (NMR) spectroscopy. The rates of dehalogenation of 4-bromo-, 4-chloro-, 4-fluoro- and 3-chloroaniline were compared under conditions of minimum necessary excess of Al-Ni alloy as reducing agent in edetane buffer medium at pH 10.9. The dehalogenation rates of halogenated anilines decreased in the following order: 3-chloroaniline > 4-bromoaniline a parts per thousand yen 4-chloroaniline > 4-fluoroaniline. On the basis of the results obtained in buffers, the dehalogenation method of aqueous solutions of halogenoanilines was verified using NaOH as the base.	reductions; AOX removal; NMR spectroscopy; metals; ICP-OES; kinetics

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