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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 26, 1996 - Issue 16
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Original Articles

An Improved Preparation Method of Benzyl and Thenyl Triphenylphosphonium Salts

Jian-Xin Zhang Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman(B6), 4000, Liège, BELGIUM
,
Philippe Dubois Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman(B6), 4000, Liège, BELGIUM
&
Robert Jérôme Center for Education and Research on Macromolecules (CERM), University of Liège, Sart-Tilman(B6), 4000, Liège, BELGIUM
Pages 3091-3095 | Received 01 Mar 1996, Published online: 21 Aug 2006
 
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Abstract

New benzyl and thenyl phosphonium salts have been prepared by an improved method in solution from the parent alcohols and triphenylphosphine hydrobromide. Benzyl-type alcohols containing a tertiary amine can also be converted within high yields to phosphonium salts by removing the formed water by azeotropic distillation. Solvent (methylene chloride, chloroform and acetonitrile) and temperature have been chosen in close relation to the alcohol reactivity. Purification is straightforward and yields are relatively high.

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