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This reaction is triggered by in\u2010situ activation of stable allenyl\u2010Bpins through the sequential addition of 1.25\u2005equiv. of <jats:sup><jats:italic>n<\/jats:italic><\/jats:sup>BuLi and the prerequisite 2.0\u2005equiv. of TFAA. Under the optimized reaction conditions, the versatile trisubstituted allenyl\u2010Bpins react with various ketones smoothly to afford a wide range of <jats:italic>tert<\/jats:italic>\u2010homopropargyl alcohols bearing vicinal stereocenters in high yields with good to excellent diastereoselectivities. Furthermore, propargylboration of ketones with chiral trisubstituted allenyl\u2010Bpins allows for the asymmetric synthesis of chiral <jats:italic>tert<\/jats:italic>\u2010homopropargyl alcohols with a full chirality transfer.<\/jats:p>","DOI":"10.1002\/chem.202302883","type":"journal-article","created":{"date-parts":[[2023,10,6]],"date-time":"2023-10-06T23:22:16Z","timestamp":1696634536000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Catalyst\u2010Free Propargylboration of Ketones with Allenyl\u2010Bpins: Highly Stereoselective Synthesis of <i>tert<\/i>\u2010Homopropargyl Alcohols Bearing Vicinal Stereocenters"],"prefix":"10.1002","volume":"29","author":[{"given":"Qian\u2010Cheng","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qin","family":"Zhong","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8792-8941","authenticated-orcid":false,"given":"Jian","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Nanjing University of Science and Technology  Nanjing 210094 China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,10,19]]},"reference":[{"key":"e_1_2_8_1_1","unstructured":"For selected reviews 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