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However, existing methods primarily address precursors with central chirality, neglecting those with axial chirality. Herein, we describe the enantioconvergent reductive coupling of racemic allenes with aldehydes, facilitated by a photoredox, chromium, and cobalt triple catalysis system. This method selectively affords one product from sixteen possible regio\u2010 and stereoisomers. The protocol leverages Co\n                    <jats:sup>III<\/jats:sup>\n                    \u2212H mediated hydrogen atom transfer (MHAT) and Cr\u2010catalyzed radical\u2010polar crossover for efficient stereoablation of axial chirality and asymmetric addition, respectively. Supported by mechanistic insights from control experiments, deuterium labeling, and DFT calculations, our approach offers synthetic chemists a valuable tool for creating enantioenriched chiral homoallylic alcohols, promising to advance radical\u2010based strategies for synthesizing complex chiral molecules.\n                  <\/jats:p>","DOI":"10.1002\/anie.202413198","type":"journal-article","created":{"date-parts":[[2024,9,2]],"date-time":"2024-09-02T08:49:48Z","timestamp":1725266988000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Radical\u2010Based Enantioconvergent Reductive Couplings of Racemic Allenes and Aldehydes"],"prefix":"10.1002","volume":"64","author":[{"given":"Haigen","family":"Shen","sequence":"first","affiliation":[{"name":"Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province Department of Chemistry School of Science and Research Center for Industries of the Future 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