Abstract Single‐atom catalysts hold the potential to significantly impact the chemical sector, pushing the boundaries of catalysis in new, uncharted directions. These materials, featuring isolated metal species ligated on solid supports, can exist in many coordination environments, all of which have shown important functions in specific transformations. Their emergence has also provided exciting opportunities for mimicking metalloenzymes and bridging the gap between homogeneous and heterogeneous catalysis. This Review outlines the impressive progress made in recent years regarding the use of single‐atom catalysts in organic synthesis. We also illustrate potential knowledge gaps in the search for more sustainable, earth‐abundant single‐atom catalysts for synthetic applications.
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