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A highly charged, oxophilic, phosphorus\u2010centered trication is employed and the reactions are conducted at room temperature with quantitative yields. The resulting pyrazolylphosphonium cations are valuable synthetic intermediates and are used for the synthesis of a variety of organophosphorus compounds. This represents a new approach towards the transformation of the rather inert phosphoryl group under very mild reaction and workup conditions and aims towards alternatives to existing reduction methods for phosphane oxide functionalization.<\/jats:p>","DOI":"10.1002\/cssc.201100503","type":"journal-article","created":{"date-parts":[[2011,12,9]],"date-time":"2011-12-09T07:36:25Z","timestamp":1323416185000},"page":"1805-1812","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["A Versatile Protocol for the Quantitative and Smooth Conversion of Phosphane Oxides into Synthetically Useful Pyrazolylphosphonium Salts"],"prefix":"10.1002","volume":"4","author":[{"given":"Kai\u2010Oliver","family":"Feldmann","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen","family":"Schulz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Felix","family":"Klotter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan J.","family":"Weigand","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,12,9]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"\u00a0"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/cite.330450920"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/9783527613861"},{"key":"e_1_2_6_4_2","unstructured":"J. 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