Jl. Rutherford et Db. Collum, NMR spectroscopic studies of lithium diethylamide: Insights into ring laddering, J AM CHEM S, 121(43), 1999, pp. 10198-10202
Li-6 and N-15 NMR spectroscopic studies of lithium diethylamide (Et2NLi) so
lvated by oxetane, THF, and Et2O are described. Four-, five-, and six-rung
ladders, as well as cyclic dimers and trimers, are identified. In addition,
dynamic processes within the trimers and ladders are detected. The symmetr
ies of the aggregates facilitated the determination of relatively complex s
olution structures and equilibria.