Investigation Of The Reaction Between Dialkylphosphine Oxides And Carbontetrachloride
- 1 January 1986
- journal article
- research article
- Published by Taylor & Francis in Phosphorus and Sulfur and the Related Elements
- Vol. 26 (3) , 261-274
- https://doi.org/10.1080/03086648608084580
Abstract
The time dependent formation of intermediates and end products in the reaction between Et2P(O)H and CCI4 is analysed using 31P-NMR technique. The various reaction steps are studied separately in order to elucidate the overall mechanism. A key step is the disproportionation of Et2P(O)H catalysed by Et2PCl and Et2P(O)Cl, in a cyclic process, the latter being produced initially by the reaction between Et2P(O)H and CCl4. The diethylphosphine formed during disproportionation reacts immediately with CCl4, driving the reaction through the intermediates. Et2PCl and Et2, PCCl3 which react with Et2P(O)OH producing Et2P(O)Cl, (Et2PO)2O, and Et2P(O)CHCl2, as end products. The influence of the substituents on rate and product yields was studied with n-propyl, n-butyl, noctyl, and allyl as substituents in the dialkylphosphine oxide.Keywords
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