Photooxygenation of Azidoalkyl Furans: Catalyst-Free Triazole and New Endoperoxide Rearrangement
作者:Elif Akin Kazancioglu、Mustafa Zahrittin Kazancioglu、Meryem Fistikci、Hasan Secen、Ramazan Altundas
DOI:10.1021/ol402163u
日期:2013.9.20
Photooxygenation of azidoalkyl furans has revealed both a novel triazole formation method and a unique endoperoxide rearrangement. The key step of this method is a 3 + 2 cycloaddion of the azide to the endoperoxide intermediate. The reduction of the peroxide bond and two subsequent C–C bond cleavages provide a triazole having a newly formed carboxylic acid functionality. The reactions are clean and
叠氮基烷基呋喃的光氧化已揭示了新颖的三唑形成方法和独特的内过氧化物重排。该方法的关键步骤是将叠氮化物3 + 2环加成到内过氧化物中间体上。过氧化物键的还原和随后的两次CC键断裂提供了具有新形成的羧酸官能团的三唑。反应干净,有效,收率从60%到90%不等。