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NMR Spectroscopic Studies of Lithium Diethylamide: Insights into Ring Laddering

1999; American Chemical Society; Volume: 121; Issue: 43 Linguagem: Inglês

10.1021/ja992169m

1943-2984

Jennifer L. Rutherford, David B. Collum,

Organophosphorus compounds synthesis

6Li and 15N NMR spectroscopic studies of lithium diethylamide (Et2NLi) solvated 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 symmetries of the aggregates facilitated the determination of relatively complex solution structures and equilibria.