The Journal of organic chemistry

Ion pair first and second acidities of some β-diketones and aggregation of their lithium and cesium enediolates in THF

A Facchetti, A Streitwieser

Index: Facchetti, Antonio; Streitwieser, Andrew Journal of Organic Chemistry, 2004 , vol. 69, # 24 p. 8345 - 8355

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Citation Number: 17

Abstract

Ion pair p K values were measured for three β-diketones in THF, 1-3, with lithium and cesium counterions. The results showed variations with concentration indicative of aggregation of the metal enolates to dimers. Similarly, ion pair p K values could be determined for some of these metal enolates going to the corresponding dimetal dienediolates which were also found to form dimers. These equilibria are more complicated to analyze because ...