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The product of this reaction that is central to a non\u2010ionic version of the Peterson olefination is an unusual four\u2010membered 1,2\u2010silaoxetane heterocycle that was characterized spectroscopically and crystallographically. In the presence of SiO<jats:sub>2<\/jats:sub>, the silaoxetane undergoes retro\u2010cycloaddition with the formation of alkene products. As the [2+2] cycloaddition proceeds without the necessity of any base, enolizable ketones can be converted into olefins. In addition, it is shown that the adamantylsilene can be produced <jats:italic>in\u2005situ<\/jats:italic> by a sila\u2010Peterson reaction, providing valuable input for the development of a new one\u2010pot silicon\u2010based reductive carbonyl\u2010carbonyl cross coupling methodology.<\/jats:p>","DOI":"10.1002\/anie.202411265","type":"journal-article","created":{"date-parts":[[2024,8,26]],"date-time":"2024-08-26T04:39:17Z","timestamp":1724647157000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Non\u2010Ionic Peterson\u2010Type Olefination Reactivity and its Use in a Silicon\u2010Promoted Carbonyl\u2010Carbonyl Cross Coupling Reaction"],"prefix":"10.1002","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-3713-2238","authenticated-orcid":false,"given":"Thuan T.","family":"Tran","sequence":"first","affiliation":[{"name":"Department of Chemistry\u2014\u00c5ngstr\u00f6m Laboratory Uppsala University  Box 523 751 20 Uppsala"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9450-2532","authenticated-orcid":false,"given":"Anna I.","family":"Arkhypchuk","sequence":"additional","affiliation":[{"name":"Department of Chemistry\u2014\u00c5ngstr\u00f6m Laboratory Uppsala University  Box 523 751 20 Uppsala"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1691-729X","authenticated-orcid":false,"given":"Sascha","family":"Ott","sequence":"additional","affiliation":[{"name":"Department of Chemistry\u2014\u00c5ngstr\u00f6m Laboratory Uppsala University  Box 523 751 20 Uppsala"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,10,21]]},"reference":[{"key":"e_1_2_3_1_1","unstructured":"\u00a0"},{"key":"e_1_2_3_2_2","first-page":"516","volume-title":"Comprehensive Organic Synthesis","author":"Blakemore P. 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