Increasing the Broensted acidity of Ph2PO2H by the Lewis acid B(C6F5)3. Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2

Increasing the Broensted acidity of Ph2PO2H by the Lewis acid B(C6F5)3. Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2

Autoprotolysis of the metastable acid (C6F5)3BOPPh2OH, prepared in situ by the reaction of the rather weak Broensted acid Ph2PO2H with the strong Lewis acid B(C6F5)3, gave rise to the formation of the eight-membered ring [Ph2POB(C6F5)2O]2 and C6F5H. The conjugate base was isolated as stable sodium c...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2016-09, Vol.52 (73), p.10992-10995
Hauptverfasser: Kather, Ralf, Rychagova, Elena, Sanz Camacho, Paula, Ashbrook, Sharon E, Woollins, JDerek, Robben, Lars, Lork, Enno, Ketkov, Sergey, Beckmann, Jens
Format: Artikel
Sprache:eng
Schlagworte:
Conjugates
Crown ethers
Formations
Lewis acid
Sodium
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Zusammenfassung:Autoprotolysis of the metastable acid (C6F5)3BOPPh2OH, prepared in situ by the reaction of the rather weak Broensted acid Ph2PO2H with the strong Lewis acid B(C6F5)3, gave rise to the formation of the eight-membered ring [Ph2POB(C6F5)2O]2 and C6F5H. The conjugate base was isolated as stable sodium crown ether salt [Na(15-crown-5)][Ph2PO2B(C6F5)3].
ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc06102h