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

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WEIDLICH Tomáš KREJČOVÁ Anna PROKEŠ Lubomír

Rok publikování 2010
Druh Článek v odborném periodiku
Časopis / Zdroj Monatshefte fuer Chemie, Chemical Monthly
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://www.springerlink.com/content/e21013535k7mrjl1/
Obor Organická chemie
Klíčová slova Reductions - AOX removal - NMR spectroscopy - Metals - ICP-OES
Popis 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 1H 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. On the basis of the results obtained in buffers, the dehalogenation method of aqueous solutions of halogenoanilines was verified using NaOH as the base.

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