NMR-SPECTRA OF A HYDROCARBON-SOLUBLE ORGANOSODIUM COMPOUND AND ITS LITHIUM ANALOGS

H-1, Na-23, and Li-7 NMR spectra of 2-ethylhexylsodium, 2-ethylhexylli thium, and isobutyllithium obtained in the reaction of the correspondi ng alkyl chlorides and metals have been recorded. The H-1 NMR signal f or the protons of the CH2Na group is shifted upfield compared with tha t for the protons of the CH2Li group (doublets at delta -0.88 and delt a -0.83, respectively). The composition of the products of reaction of 2-ethylhexyl chloride with sodium depends on the form of the metal re agent employed. The use of sodium bails with diameter up to 2 mm resul ts in the formation of products containing ionic chlorine (30-50 % wit h respect to Na); the reaction with the dispersion proceeds faster and the reaction product is chlorine-free. The Na-23 NMR spectra of these substances are also different, which is explained by the formation of 2-ethylhexylsodium complexes with NaCl in the former case.