{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T20:34:56Z","timestamp":1761510896627,"version":"build-2065373602"},"reference-count":39,"publisher":"Wiley","issue":"23","license":[{"start":{"date-parts":[[2006,11,7]],"date-time":"2006-11-07T00:00:00Z","timestamp":1162857600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rapid Comm Mass Spectrometry"],"published-print":{"date-parts":[[2006,12,15]]},"abstract":"Abstract<\/jats:title>\n \n The 1,3,4,2\u2010oxadiazaphosphinane 2\u2010oxides differ not only in the relative configuration of the\n P<\/jats:italic>\n atom (\n R*<\/jats:italic>\n or\n S*<\/jats:italic>\n ), but also in many other ways such as the ring size, ring fusion,\n P<\/jats:italic>\n substitution and bridgehead\n N<\/jats:italic>\n atom whose effects on their fragmentations have been studied. Some fragmentations resembled those of 3,1,2\u2010oxazaphosphinane 2\u2010oxides and 1,3,2\u2010diazaphosphinane\u20102\u2010oxides, but new routes were also found, initiated by ionization at the bridgehead\n N<\/jats:italic>\n atom. The relative abundances of the molecular ions and some fragment ions allowed the differentiation of\n cis\u2010trans<\/jats:italic>\n epimers. Compounds with\n n<\/jats:italic>\n \u2009=\u20092 and R\u2009\uf8fe\u2009N(CH\n 2<\/jats:sub>\n CH\n 2<\/jats:sub>\n Cl)\n 2<\/jats:sub>\n , and linearly or angularly isoquinoline\u2010fused isomers in most cases, gave more numerous ions with lower relative abundances than the other compounds in this series. Only the isoquinoline derivatives provided fragments resulting from ionization of the aromatic part of the molecule. Copyright \u00a9 2006 John Wiley & Sons, Ltd.\n <\/jats:p>","DOI":"10.1002\/rcm.2771","type":"journal-article","created":{"date-parts":[[2006,11,7]],"date-time":"2006-11-07T08:17:04Z","timestamp":1162887424000},"page":"3595-3604","source":"Crossref","is-referenced-by-count":5,"title":["Electron ionization mass spectra of phosphorus\u2010containing heterocycles. III. 1,3,4,2\u2010Oxadiazaphosphinane 2\u2010oxides"],"prefix":"10.1002","volume":"20","author":[{"given":"M\u00e1rta","family":"Juh\u00e1sz","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zita","family":"Zal\u00e1n","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ferenc","family":"F\u00fcl\u00f6p","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kalevi","family":"Pihlaja","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2006,11,7]]},"reference":[{"key":"e_1_2_6_2_2","unstructured":"(a)SorensenMD BlaehrLKA ChristensenMK.Int. Patent Appl. WO 02\/06293.Chem. Abstr.2002;136: 118577;"},{"key":"e_1_2_6_2_3","unstructured":"(b)ChristensenMK BlaehrLKA.Int. Patent Appl. WO 03\/059921.Chem. 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