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The Influence of Copper on Halogenation/Dehalogenation Reactions of Aromatic Compounds and Its Role in the Destruction of Polyhalogenated Aromatic Contaminants
Year: 2021
Type of publication: článek v odborném periodiku
Name of source: Catalysts
Publisher name: MDPI
Place: BASEL
Page from-to: 378
Titles:
Language Name Abstract Keywords
cze Vliv mědi na halogenaci/dehalogenaci aromatických sloučenin a role mědi na rozklad polyhalogenovaných aromatických kontaminantů Zatímco halogenidy měďnaté jsou katalyzátory halogenačních reakcí, měď je katalyticky aktivní i při dehalogenačních reakcích. Jednou z nejznámějších měďnatými solemi katalyzovaných reakcí je oxyhalogenace. Katalytické působení mědi se naopak uplatňuje při dehalogenaci PCDD/Fs obsažených např. v nespalitelných zbytcích. halogenace; oxybromace; oxychlorace; arylace; Ullmannova reakce; hydrodehalogenace
eng The Influence of Copper on Halogenation/Dehalogenation Reactions of Aromatic Compounds and Its Role in the Destruction of Polyhalogenated Aromatic Contaminants The effect of copper and its compounds on halogenation and dehalogenation of aromatic compounds will be discussed in the proposed article. Cu oxidized to appropriate halides is an effective halogenation catalyst not only for the synthesis of halogenated benzenes or their derivatives as desired organic fine chemicals, but is also an effective catalyst for the undesirable formation of thermodynamically stable and very toxic polychlorinated and polybrominated aromatic compounds such as polychlorinated biphenyls, dibenzo-p-dioxins and dibenzofurans accompanied incineration of waste contaminated with halogenated compounds or even inorganic halides. With appropriate change in reaction conditions, copper and its alloys or oxides are also able to effectively catalyze dehalogenation reactions, as will be presented in this review. halogenation; oxybromination; oxychlorination; copper-catalyzed; arylation; Ullmann reaction; coupling; hydrodehalogenation