The carbonyl products of the reactions of hydroxyl radicals with three vicinal diols (ethane-1,2-diol, propane-1,2-diol and butane-2,3-diol) have been identified and quantified. Hydroxyl radicals were produced by γ-radiolysis of N2O-saturated aqueous solutions. The reactions result in the formation of alkoxyl radicals (∼15%) followed by β-fragmentation, and α-hydroxyl alkyl radicals that undergo H2O elimination. The latter process is part of a radical chain reaction at higher diol concentrations.
羟自由基与三种邻二醇(
乙二醇、
丙二醇和
丁二醇)反应的羰基产物已被鉴定并定量。羟自由基通过γ射线辐照饱和
N2O水溶液产生。反应导致烷氧自由基(约15%)的形成,随后发生β-断裂,以及经历
H2O消除的α-羟基烷基自由基。后者过程在较高二醇浓度下是自由基链反应的一部分。