Iron catalyzed demethylation of acetic acid*
Iron catalyzed demethylation of acetic acid*
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DOI：
10.1080/00958972.2018.1490414
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发表时间：
2018-07
影响因子：
1.9
通讯作者：
P. Comba;Dieter Faltermeier;Sascha Gieger;F. Keppler;H. Schöler;M. Schroll
中科院分区：
文献类型：
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作者：
P. Comba;Dieter Faltermeier;Sascha Gieger;F. Keppler;H. Schöler;M. Schroll
摘要报道了铁（IV）-氧代催化的乙酸裂解反应。铁（II）络合物用作催化剂前体，H2 O2用作水溶液中与过量氯化物反应的氧化剂，在一些实验中，抗坏血酸作为OH加入。自由基清除剂结果表明，乙酸裂解成CO2和甲基自由基。在O2和OH的存在下。自由基时，最初产生的甲基自由基产生甲醇和甲酸盐。在没有O2和OH的情况下，也会形成卤化烷烃。自由基，获得甲烷作为主要产物。各种环境重要的挥发性C1化合物的形成机制推导出从目前的结果和已发表的研究，并讨论其相关性作为这些化合物在大气中的额外来源。图形摘要
Abstract The iron(IV)-oxo catalyzed cleavage of acetic acid is reported. Iron(II) complexes are used as catalyst precursors and H2O2 as oxidant in reactions in aqueous solution with an excess of chloride and, in some experiments, with ascorbic acid added as an OH. radical scavenger. It is shown that the acetic acid is cleaved into CO2 and a methyl radical. In the presence of O2 and OH. radicals, the initially generated methyl radicals produce methanol and formate. Halogenated alkanes are also formed and, in the absence of O2 and OH. radicals, methane is obtained as the major product. A mechanism for the formation of various environmentally important volatile C1 compounds is deduced from the present results and published studies, and its relevance as an additional source for these compounds in the atmosphere is discussed. Graphical Abstract