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我们曾报道在微量氧存在下芳香叔胺可以引发含有α-甲基或醚键结构的烯类单体的聚合,提出了胺—O_2复合物的氧化—聚合机理。 芳香叔胺作为电子给体与分子氧形成电荷转移复合物已有光谱证明。从结构上看,胺—O_2复合物中的分子氧若接受胺分子的一个电子便生成负氧离子自由基(O(?))及胺正离子自由基。 肾上腺素是一个具有重要生理功能的儿茶酚衍生物,含有易被氧化的邻二酚结构,其氧化已有很多研究,并认为是通过O(?)机理。胺—O_2复合物能否氧化肾上腺素,文献未有报道。本文简要报道在四氯化碳存在下芳香叔胺促进的肾上腺素光氧化反应。
We have reported that aromatic tertiary amines can initiate the polymerization of vinyl monomers containing α-methyl or ether linkages in the presence of trace amounts of oxygen, suggesting the oxidation-polymerization mechanism of the amine-O 2 complex. Aromatic tertiary amines as electron donors and molecular oxygen to form charge-transfer complexes have been spectroscopically proven. Structurally, molecular oxygen in the amine-O 2 complex generates negative oxygen ion radicals (O (?)) And amine cation radicals upon receiving one electron of the amine molecule. Epinephrine is a catechol derivative with important physiological functions. It contains oxidized ortho-diphenol structure. There are many studies on the oxidation of epinephrine and it is believed that it is through O (?) Mechanism. Amine - O 2 complex can oxidize epinephrine, the literature has not been reported. This article briefly reports the photo-oxidation of adrenaline promoted by aromatic tertiary amines in the presence of carbon tetrachloride.