Increasing the Brønsted acidity of Ph2PO2H by the Lewis acid B(C6F5)3. Formation of an eight-membered boraphosphinate ring [Ph2POB(C6F5)2O]2
Abstract
Autoprotolysis of the metastable acid (C6F5)3BOPPh2OH, prepared in situ by the reaction of the rather weak Brønsted 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].
Citation
Kather , R , Rychagova , E , Camacho , P S , Ashbrook , S E , Woollins , J D , Robben , L , Lork , E , Ketkov , S & Beckmann , J 2016 , ' Increasing the Brønsted acidity of Ph 2 PO 2 H by the Lewis acid B(C 6 F 5 ) 3 . Formation of an eight-membered boraphosphinate ring [Ph 2 POB(C 6 F 5 ) 2 O] 2 ' , Chemical Communications , vol. 52 , no. 73 , pp. 10992-10995 . https://doi.org/10.1039/c6cc06102h
Publication
Chemical Communications
Status
Peer reviewed
ISSN
1359-7345Type
Journal article
Rights
This is an Open Access article, which is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Description
The Deutsche Forschungsgemeinschaft (DFG) is gratefully acknowledged for financial support. The theoretical part of this work was supported by the Russian Science Foundation (Project 14-13-00832).Collections
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