{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T12:55:08Z","timestamp":1791896108855,"version":"4.3.4"},"reference-count":33,"publisher":"Wiley","issue":"21","license":[{"start":{"date-parts":[[2005,8,1]],"date-time":"2005-08-01T00:00:00Z","timestamp":1122854400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2005,10,21]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A new and improved method for the preparation of (PhPSe<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub> (Woollins reagent (WR), <jats:bold>1<\/jats:bold>) is reported. Reaction of dichlorophenylphosphine with Na<jats:sub>2<\/jats:sub>Se, (prepared from the reaction of elemental selenium and sodium in liquid ammonia) gives WR with excellent purity, high yield and on a larger scale than was previously possible. Four novel phosphorus\u2013selenium heterocycles, including a spirocyclic heterocycle exhibiting a four\u2010membered P<jats:sub>2<\/jats:sub>SeC ring, were obtained from the reaction of WR with two reactive substrates (diphenylcyclopropenone and methyl phenylpropiolate). Useful selenocarbonyl and thiocarbonyl compounds were obtained from the reaction of both WR and Lawesson's reagent with diphenylcyclopropenone. All new compounds were characterised spectroscopically and three demonstrative X\u2010ray structures are reported.<\/jats:p>","DOI":"10.1002\/chem.200500291","type":"journal-article","created":{"date-parts":[[2005,8,2]],"date-time":"2005-08-02T20:12:58Z","timestamp":1123013578000},"page":"6221-6227","source":"Crossref","is-referenced-by-count":119,"title":["A New Synthesis of (PhPSe<sub>2<\/sub>)<sub>2<\/sub> (Woollins Reagent) and Its Use in the Synthesis of Novel P\u2013Se Heterocycles"],"prefix":"10.1002","volume":"11","author":[{"given":"Ian P.","family":"Gray","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pravat","family":"Bhattacharyya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexandra M. Z.","family":"Slawin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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