作者:V.Pushkara Rao、V. Ramamurthy
DOI:10.1016/s0040-4020(01)96589-5
日期:1985.1
of α,β-unsaturated thiones yields the corresponding ketones as the only product. Studies carried out on three systems, namely thioketones, α,β-unsaturated thiones and thioketenes, have revealed that there exists a similarity in their mechanism of oxidation. It has been suggested that the thiocarbonyl chromophore is the site of attack by singlet oxygen in α,β-unsaturated thiones and that the adjacent
α,β-不饱和硫酮的光氧化产生相应的酮作为唯一产物。对硫酮,α,β-不饱和硫酮和硫烯酮这三种体系进行的研究表明,它们的氧化机理存在相似之处。已经提出,硫代羰基发色团是α,β-不饱和硫酮中单线态氧的攻击位点,并且在这些条件下,相邻的CC双键是惰性的。α,β-不饱和硫酮氧化过程中缺少硫,归因于两性离子/双自由基中间体上的电子因子。尽管α,β-不饱和酮的反应性很差,但是α,β-不饱和的硫酮对单线态氧的反应性很高。