{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T08:25:23Z","timestamp":1791188723869,"version":"4.1.0"},"reference-count":82,"publisher":"Wiley","issue":"21","license":[{"start":{"date-parts":[[2015,4,1]],"date-time":"2015-04-01T00:00:00Z","timestamp":1427846400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Angew Chem Int Ed"],"published-print":{"date-parts":[[2015,5,18]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Half\u2010sandwich manganese methylenephosphonium complexes [Cp(CO)<jats:sub>2<\/jats:sub>Mn(\u03b7<jats:sup>2<\/jats:sup>\u2010R<jats:sub>2<\/jats:sub>P\uf8feC(H)Ph)]BF<jats:sub>4<\/jats:sub> were obtained in high yield through a straightforward reaction sequence involving a classical Fischer\u2010type manganese complex and a secondary phosphine as key starting materials. The addition of various nucleophiles (Nu) to these species took place regioselectively at the double\u2010bonded carbon center of the coordinated methylenephosphonium ligand R<jats:sub>2<\/jats:sub>P<jats:sup>+<\/jats:sup>\uf8feC(H)Ph to produce the corresponding chiral phosphine complexes [Cp(CO)<jats:sub>2<\/jats:sub>Mn(\u03ba<jats:sup>1<\/jats:sup>\u2010R<jats:sub>2<\/jats:sub>P\uf8ffC(H)(Ph)Nu)], from which the phosphines were ultimately recovered as free entities upon simple irradiation with visible light. The synthetic potential of this umpolung approach is illustrated herein by the preparation of novel chiral pincer\u2010type phosphine\u2013NHC\u2013phosphine ligand architectures.<\/jats:p>","DOI":"10.1002\/anie.201501256","type":"journal-article","created":{"date-parts":[[2015,4,2]],"date-time":"2015-04-02T21:17:08Z","timestamp":1428009428000},"page":"6315-6319","source":"Crossref","is-referenced-by-count":35,"title":["Umpolung of Methylenephosphonium Ions in Their Manganese Half\u2010Sandwich Complexes and Application to the Synthesis of Chiral Phosphorus\u2010Containing Ligand Scaffolds"],"prefix":"10.1002","volume":"54","author":[{"given":"Dmitry A.","family":"Valyaev","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oleg 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