Please use this identifier to cite or link to this item:
http://dx.doi.org/10.18419/opus-1277
| Authors: | Becker, Gerd Becker, Birgit Becker, Winfried Uhl, Werner |
| Title: | Alkylidenephosphines and diphosphetanes |
| Issue Date: | 1987 |
| metadata.ubs.publikation.typ: | Zeitschriftenartikel |
| metadata.ubs.publikation.source: | Phosphorus and sulfur and the related elements 30 (1987), S. 760. URL http://dx.doi.org./10.1080/03086648708079252 |
| URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-58087 http://elib.uni-stuttgart.de/handle/11682/1294 http://dx.doi.org/10.18419/opus-1277 |
| Abstract: | In studies of the reactivity and thermal stability of various alkylidenephos-phines prepared from benzophenone and organylbis(trimethylsilyl)phosphines via a NaOH-catalyzed elimination of hexamethyldisiloxane (eq. la), detailed analyses of nmr-spectra and x-ray structure determinations prove the methyl derivative la to dimerize to an 1,3-diphosphetane (2a), whereas from the iso-propyl compound 1b the 1,2-diphosphetane 2b is obtained [1]. This observation confirms our hypothesis that the formation of 1,2- or 1,3-diphosphetanes is determined by the steric requirements of the substituent at phosphorus. |
| Appears in Collections: | 03 Fakultät Chemie |
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