Visible-light photoredox catalysis using a macromolecular ruthenium complex: reactivity and recovery by size-exclusion nanofiltration in continuous flow

Javier Guerra ^ab, David Cantillo ^a, C. Oliver Kappe ^*a, Antonio Macchiarulo ^a, Antimo Gioiello ^*a

• ^a Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
• ^b Crystal Pharma, Gadea Pharmaceutical Group, a division of AMRI, Parque Tecnológico de Boecillo, Valladolid, 47151, Spain

A novel macromolecular photoredox catalyst based on [Ru(bpy)3]2+ anchored to a 2nd-generation PAMAM dendrimer has been developed. Its catalytic activity under visible light irradiation and recyclability using organic solvent nanofiltration with a size-exclusion membrane have been explored under continuous flow conditions.

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