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The present work closes this gap for those azirines by means of a copper\u2010catalyzed silylation using a silyl boronic ester as a latent silicon nucleophile. The resulting <jats:italic>C<\/jats:italic>\u2010silylated, unprotected (N\u2212H) aziridines are obtained in high yields and with excellent enantioselectivities and can be further converted into valuable compounds with hardly any erosion of the enantiomeric excess.<\/jats:p>","DOI":"10.1002\/anie.202215032","type":"journal-article","created":{"date-parts":[[2022,12,12]],"date-time":"2022-12-12T14:22:07Z","timestamp":1670854927000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Copper\u2010Catalyzed Highly Enantioselective Addition of a Silicon Nucleophile to 3\u2010Substituted 2<i>H<\/i>\u2010Azirines Using an Si\u2212B Reagent"],"prefix":"10.1002","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3916-5657","authenticated-orcid":false,"given":"Zhi\u2010Yuan","family":"Zhao","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Chemie Technische Universit\u00e4t Berlin  Strasse des 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