An entirely solvent-free photooxygenation of olefins under continuous flow conditions. Issue 8 (1st April 2020)

• Record Type: Journal Article
• Authors: Bayer, Patrick; Jacobi von Wangelin, Axel
• Is Part Of: Green chemistry. Volume 22:Issue 8(2020)
• Page Start: 2359
• Page End: 2364
• Publication Date: 2020-04-01
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/d0gc00436g
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : Photooxygenations of alkenes with singlet oxygen have been performed under solvent-free conditions in a flow reactor under VIS irradiation. The reaction operates at very high substrate/sensitizer ratios and enables high space–time yields. Abstract : Photooxygenations of alkenes with singlet oxygen are a versatile, atom-economical transformation. The choice of solvents is key to the success of this oxyfunctionalization with direct impact on the solubility of substrates, the lifetime of the reactive oxygen species, and the up-scaling of the process. We report an entirely solvent-free continuous-flow photooxygenation that operates at very high substrate/sensitizer ratios and enables high space–time yields.