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Method of continuous variation: characterization of alkali metal enolates using ¹H and ¹?F NMR spectroscopies.


ABSTRACT: The method of continuous variation in conjunction with (1)H and (19)F NMR spectroscopies was used to characterize lithium and sodium enolates solvated by N,N,N',N'-tetramethylethyldiamine (TMEDA) and tetrahydrofuran (THF). A strategy developed using lithium enolates was then applied to the more challenging sodium enolates. A number of sodium enolates solvated by TMEDA or THF afford exclusively tetramers. Evidence suggests that TMEDA chelates sodium on cubic tetramers.

SUBMITTER: Tomasevich LL 

PROVIDER: S-EPMC4105082 | BioStudies | 2014-01-01T00:00:00Z

REPOSITORIES: biostudies

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