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In particular,\n                    <jats:italic>N<\/jats:italic>\n                    \u2010aroyl sulfoximines are valuable intermediates in amide coupling, C\uf8ffH functionalization, and heterocycle formation. However, conventional synthetic approaches often rely on stoichiometric activating reagents and harsh conditions, generating waste and limiting substrate scope. Herein, we report a sustainable continuous\u2010flow platform for the Pd\u2010catalyzed carbonylative\n                    <jats:italic>N<\/jats:italic>\n                    \u2010aroylation of sulfoximines employing carbon monoxide (CO) as a C1 source under mild conditions. The system integrates a solid oxide electrolysis cell (SOEC) to generate dry CO from CO\n                    <jats:sub>2<\/jats:sub>\n                    on\u2010demand, enabling a safe, modular, and atom\u2010economical transformation. The process displayed broad substrate tolerance, accommodating electron\u2010rich, electron\u2010poor, and heteroaromatic aryl iodides to furnish\n                    <jats:italic>N<\/jats:italic>\n                    \u2010aroyl sulfoximines in 50%\u201399% isolated yields within 40\u2009min at 80\u00b0C and 6\u2009bar. A heterogeneous Pd\u2010based catalyst, covalently immobilized on Merrifield resin, further enabled efficient flow operation with 96% conversion, facilitating the catalyst recovery. Finally, the adoption of Cyrene, a biomass\u2010derived solvent, afforded quantitative yields and demonstrated the process compatibility with green solvents. This work establishes a scalable, safe, and sustainable strategy for sulfoximine\n                    <jats:italic>N<\/jats:italic>\n                    \u2010aroylation, integrating CO\n                    <jats:sub>2<\/jats:sub>\n                    valorization, continuous\u2010flow technology, and heterogeneous catalysis for modern carbonylation chemistry.\n                  <\/jats:p>","DOI":"10.1002\/cssc.70810","type":"journal-article","created":{"date-parts":[[2026,6,27]],"date-time":"2026-06-27T10:21:43Z","timestamp":1782555703000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Closing the Carbon Loop: Continuous\u2010Flow Synthesis of\n                    <i>N<\/i>\n                    \u2010Aroyl Sulfoximines via Electrochemical CO\n                    <sub>2<\/sub>\n                    Reduction"],"prefix":"10.1002","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7723-6017","authenticated-orcid":false,"given":"Giada","family":"Moroni","sequence":"first","affiliation":[{"name":"Institute of Applied Synthetic Chemistry TU Wien  Vienna Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maximilian","family":"Weiss","sequence":"additional","affiliation":[{"name":"Institute of Chemical Technologies and Analytics TU Wien  Vienna Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia","family":"Russo","sequence":"additional","affiliation":[{"name":"Institute of Applied Synthetic Chemistry TU Wien  Vienna Austria"},{"name":"Department of Chemistry Life Sciences and Environmental Sustainability University of Parma  Parma Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gloria","family":"Biscontini","sequence":"additional","affiliation":[{"name":"Institute of Applied Synthetic Chemistry TU 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