HMPA dehydro dimer: a remarkable complexing agent of lithium cation

G Nee, T Bottin-Strzalko, J Seyden-Penne…

Index: Nee, Gerard; Bottin-Strzalko, Tekla; Seyden-Penne, Jacqueline; Beaujean, Michel; Viehe, Heinz Journal of Organic Chemistry, 1983 , vol. 48, # 7 p. 1111 - 1114

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Citation Number: 3

Abstract

Results While a 0.27 M solution of lithium enolate 1 in tetrahydrofuran remains homogeneous upon addition of HMPA, a precipitate (mp 142-144 “C) is formed when diHMPA is added. In contrast, no precipitate is observed when the same experiment is conducted with the K enolate.