Issue 1, 2016

Visible light mediated photoredox reactions catalyzed by recyclable PIB-bound ruthenium photoredox catalysts

Abstract

This report describes the preparation of a PIB-bound Ru(II)-bipyridine complex [Ru(PIB-bpy)3Cl2], and its use as a recyclable photoredox catalyst to carry out both oxidative C–C bond cleavage of aldehydes and [2 + 2] cycloaddition of bis(enone)s. While this polymer-supported Ru catalyst could be successfully recovered and reused for 5 cycles with no loss of catalytic activity and with leaching levels of ca. 1% of the charged catalyst for these reactions, other reactions like photodimerization or alkyl halide synthesis that require a more polar solvent medium for successful reactions of the low molecular weight catalyst proceeded either with varying selectivity or in low yield because of solubility limitations of the PIB-supported catalyst in the more polar solvents that are often used for this chemistry.

Graphical abstract: Visible light mediated photoredox reactions catalyzed by recyclable PIB-bound ruthenium photoredox catalysts

Supplementary files

Article information

Article type
Paper
Submitted
07 Aug 2015
Accepted
02 Oct 2015
First published
08 Oct 2015

Catal. Sci. Technol., 2016,6, 215-221

Author version available

Visible light mediated photoredox reactions catalyzed by recyclable PIB-bound ruthenium photoredox catalysts

Y. Liang and D. E. Bergbreiter, Catal. Sci. Technol., 2016, 6, 215 DOI: 10.1039/C5CY01287B

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