New Insights into the Reactivity of Nitrogen Dioxide with Substituted Phenols: A Solvent Effect
作者:Paola Astolfi、Maria Panagiotaki、Lucedio Greci
DOI:10.1002/ejoc.200500016
日期:2005.7
Various alkyl-substituted phenols react readily with nitrogen dioxide (·NO2) in different solvents at room temperature. In all cases nitration is the major reaction and leads to the formation of mono- and dinitrophenols and 4-nitrocyclohexa-2,5-dienones from 2,4,6-tri-substituted phenols. Oxidation, dimerisation and, in one case, nitrosation are also observed. The reaction pathway followed changes
在室温下,各种烷基取代酚在不同溶剂中很容易与二氧化氮 (·NO2) 发生反应。在所有情况下,硝化反应都是主要的反应,导致由 2,4,6-三取代苯酚形成单和二硝基苯酚和 4-硝基环六-2,5-二烯酮。还观察到氧化、二聚和在一种情况下的亚硝化。反应途径根据溶剂和酚环上取代基的性质和数量而变化。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)