Five novel S-nitrosothiol compounds (6-10) derived from L-cysteine were generated in solution and their decomposition rate was followed by UV spectroscopy. In acetonitrile, compounds 9 and 10 were the most stable of this series with a half-life of 24 h. The final organic decomposition products of the five S-nitrosothiols were also analysed. Derivatives 8, 9, and 10, possessing a phenolic hydroxyl group, afforded an unexpected decomposition pathway, with nitration of aromatic ring occurring in non-aqueous media. A mechanism involving a phenoxy radical seems to be implicated.
在溶液中生成了源自
L-半胱氨酸的五种新型 S-亚硝
硫醇化合物(6-10),并通过紫外光谱法跟踪了它们的分解速率。在
乙腈中,化合物 9 和 10 是该系列中最稳定的,半衰期为 24 小时。具有
酚羟基的衍
生物 8、9 和 10 提供了一种意想不到的分解途径,在非
水介质中发生了芳香环的硝化反应。这似乎与
苯氧基自由基有关。