Deuterated dimethyl sulfoxide as a good NMR solvent for the characterization of alkali metal cyclopentadienides, amides, alkoxides and phenoxides

A series of alkali metal cyclopentadienides, amides, alkoxides and phenoxides was characterized using NMR spectroscopy in deuterated dimethyl sulfoxide. Deuterated dimethyl sulfoxide showed very good stability and solubility for these compounds. Very nice and well resolved spectra were obtained for most compounds tested. The low cost of the solvent makes it possible to use it for the routine characterization of these alkali salts as the ligands in organometallic synthesis.

A series of alkali metal cyclopentadienides, amides, alkoxides and phenoxides was characterized using NMR spectroscopy in deuterated dimethyl sulfoxide as the solvent, and very nice and well resolved spectra were obtained for these compounds. Deuterated dimethyl sulfoxide showed very good stability and solubility for these compounds.Figure optionsDownload as PowerPoint slideHighlights
► DMSO-d6 is a good NMR solvent for alkali metal cyclopentadienides, amides, alkoxides.
► First examples of the NMR spectroscopic characterization of some salts in DMSO-d6.
► Coordinated THF or ether in products can be easily detected and quantified.
► Routine use of DMSO-d6 is possible due to its stability, low toxicity and low cost.