Visible-light-promoted aerobic oxidative synthesis of β-ketosulfones under photocatalyst-free conditions. Issue 1 (2nd January 2020)

• Record Type: Journal Article
• Authors: Lv, Yufen; Liu, Qishun; Liu, Fei; Yue, Huilan; Li, Jiang-Sheng; Wei, Wei
• Is Part Of: Tetrahedron letters. Volume 61:Issue 1(2020)
• Publication Date: 2020-01-02
• Subjects: Visible-light -- β-ketosulfones -- Alkynes -- Photocatalyst-free; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tetlet.2019.151335
• Languages: English
• ISSNs: 0040-4039

Abstract

Graphical abstract: Highlights: Visible-light-promoted oxidative synthesis of β-ketosulfones. Photocatalyst-free. Air as the green oxidant and oxygen source. A radical process. Abstract: A simple and convenient visible-light-mediated method has been developed for the construction of β-ketosulfones via aerobic oxidative difunctionalization of alkynes with arylazo sulfones and dioxygen in air under photocatalyst-free conditions. The present photochemical methodology provides a facile and attractive protocol to construct a series of β-ketosulfones in moderate to good yields.