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This unprecedented transformation stands as a phosphorus version of the silyl and germyl\u2010zincation of alkynes recently shown to give modular access to elaborated tri and tetra\u2010substituted alkenes. The cyclic vinyl\u2010zinc derivative resulting from intramolecular phosphinyl\u2010zincation was characterized by multi\u2010nuclear NMR spectroscopy. It subsequently undergoes Cu or Pd\u2010catalyzed derivatizations with a broad range of electrophiles. The synthetic utility of this one\u2010pot\u2010two\u2010step process has been leveraged to prepare a wide range of benzophosphole oxides (BPO) with diverse substitution patterns. Furthermore, \u03c0\u2010extended BPOs have been synthesized by C\u2500C coupling or cyclization of C3\u2010alkynyl \/ alkenyl substituted compounds and their optical properties have been analyzed.\n                  <\/jats:p>","DOI":"10.1002\/anie.202509909","type":"journal-article","created":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T12:35:46Z","timestamp":1756730146000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Intramolecular Phosphinyl\u2010Zincation of Alkynes: A Powerful Entry to Benzophosphole Oxides"],"prefix":"10.1002","volume":"64","author":[{"given":"Liyao","family":"Ma","sequence":"first","affiliation":[{"name":"Laboratoire H\u00e9t\u00e9rochimie Fondamentale et Appliqu\u00e9e (LFA UMR 5069) CNRS\/Universit\u00e9 de Toulouse  118 Route de Narbonne Toulouse,Cedex 09 31062 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