1989
DOI: 10.1002/ange.19891011235
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Erzeugung, Stereochemie und Moleküldynamik eines 1,3‐Bis(phosphonio)propenid‐Kations

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Cited by 14 publications
(2 citation statements)
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“…Schmidbaur and co-workers obtained the salt 3 and determined its X-ray structure. [5] This showed a delocalised allyl anion with essentially equal C(1)-C(2) and C(2)-C(3) bond lengths, but the 13 C NMR spectroscopic data were more consistent with the localised structure ( [6] whose spectroscopic data also show the same patterns as observed for 2 ( Table 1 and Scheme 3). [a] Slightly different data later reported by Schmidpeter and coworkers.…”
Section: Resultssupporting
confidence: 62%
“…Schmidbaur and co-workers obtained the salt 3 and determined its X-ray structure. [5] This showed a delocalised allyl anion with essentially equal C(1)-C(2) and C(2)-C(3) bond lengths, but the 13 C NMR spectroscopic data were more consistent with the localised structure ( [6] whose spectroscopic data also show the same patterns as observed for 2 ( Table 1 and Scheme 3). [a] Slightly different data later reported by Schmidpeter and coworkers.…”
Section: Resultssupporting
confidence: 62%
“…Das durch cyclisierende doppelte Quaternisierung von 1 ,I-Bis[(diphenylphosphino)methyl]ethen 1 [12] rnit Dihalogenmethanen zugangliche Dikation von 2 liefert fur den Fall X = I bei der Behandlung rnit einem Aquivalent n-Butyllithium oder Triethylethylidenphosphoran (als Umylidierungs-Reagens) zunachst das ,,Semiylid-Quartarsalz" 3. Mit einem weiteren Aquivalent Base entsteht uberraschenderweise nicht das konjugierte (5) oder cumulierte Doppelylid (53, sondern direkt und in hohen Ausbeuten die Titelverbindung 4 (neben LiI bzw.…”
Section: Nicolet-r3m/v-rontgenvierkreisdiffraktometerunclassified