Diekamp, JustusSeidensticker, Thomas2025-01-072025-01-072023-05-11http://hdl.handle.net/2003/4328610.17877/DE290R-25118The recycling of homogeneous catalysts while keeping them in the homogeneous matrix is an ongoing challenge many reactions face if they are to find industrial applications. While a plethora of different synthetic approaches towards better, recyclable homogeneous catalysts exist, the literature shows a gap when one searches for a concise overview of the different catalyst modifications. This Review is designed to close that gap by summarising the existing synthesis pathways towards polar, non-polar, fluorous, and molecular-weight-enlarged catalysts and by examining their respective synthesis routes with a focus on modular and late-stage approaches. Furthermore, we map out the potential for a generally applicable tag library that allows straightforward catalyst modifications to tune them for each desired recycling strategy.enAngewandte Chemie International edition; 62(39)https://creativecommons.org/licenses/by/4.0/Biphasic RecyclingCarbene LigandsCatalyst RecyclingHomogeneous CatalysisP Ligands660Article