Products from the gas-phase reaction of some unsaturated alcohols with nitrate radicals
作者:J. Noda、M. Hallquist、S. Langer、E. Ljungström
DOI:10.1039/b000251h
日期:——
schemes were proposed from the yielded products. The distribution between bond breakage and other processes such as abstraction of a hydrogen atom from the alkoxy radical, formed in the degradation process, was estimated. The small carbonyl compounds were produced by the bond breakage mechanisms. Large multi-functional organic compounds e.g. 1-hydroxy-3-nitrooxy-3-methyl-2-butanone from MBO321 were proposed
五种结构相似的不饱和醇,2-丙烯-1-醇(烯丙醇)、3-丁烯-2-醇、2-甲基-3-丁烯-2-醇(MBO232)、2-丁烯-1-醇(巴豆醇)醇) 和 3-甲基-2-丁烯-1-醇 (MBO321),通过由 NO3 自由基引发的氧化来阐明它们的大气降解途径。使用配备长程 FTIR 光谱仪的 0.153 m3 静态玻璃反应器研究反应。实验在 1020±5 mbar 的压力和 297±2 K 的温度下在空气或氮气作为浴气中进行。鉴定和定量的气相产物是小的羰基化合物,例如丙酮、甲醛、乙醛、乙醇醛和 2-硝基氧基乙醛。所研究的五种醇的具体产物及其产率如下:来自烯丙醇的甲醛 37(±1)% 和 2-硝基氧基乙醛 41(±7)%;来自 3-butene-2-ol 的乙醛 28(±6)%、甲醛 2(±1)% 和 2-硝基氧基乙醛 33(±4)%;来自 MBO232 的丙酮 63(±6)% 和 2-硝基氧基乙醛