Rutherford J L, Collum D B
Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA.
J Am Chem Soc. 2001 Jan 17;123(2):199-202. doi: 10.1021/ja003104i.
One- and two-dimensional (6)Li and (15)N NMR spectroscopic studies of lithium diisopropylamide (LDA) solvated by substoichiometric concentrations of oxetane, THF, Et(2)O, and diisopropylamine are described. Partially solvated dimers and trimers are identified. Possible benefits of carrying out organolithium chemistry at low ligand concentrations are discussed.
描述了用亚化学计量浓度的氧杂环丁烷、四氢呋喃、乙醚和二异丙胺溶剂化的二异丙基氨基锂(LDA)的一维和二维(6)Li和(15)N核磁共振光谱研究。鉴定出了部分溶剂化的二聚体和三聚体。讨论了在低配体浓度下进行有机锂化学的可能益处。