Lithium diethyl ether

Various diboriodilithiomethanes of type 225 were synthesized by Bemdt and coworkers, adding different aryllithium compounds to the boron-carbon bonds of compounds 224a-e (Scheme 77) . The dilithium compounds have been characterized in the solid state by X-ray structural analysis. 225a-e adopt the structure of a 1,3-diborataallene system, where lithium-diethyl ether units are bridging the twisted B-C-B axis from both sides. 

Anhydrous samarium(III) chloride [Rare Earth Products, Johnson Matthey] (2.40 g, 9.40 mmol) is placed in a 200-mL Schlenk tube containing a magnetic stirring bar. Tetrahydrofuran (THF) (100 mL) is introduced via a cannula at 20 °C. The mixture is stirred at 20 °C for 2 h. Solid (2,6-di-tert-butylphenoxo)-lithium-diethyl etherate (8.13g, 28.4 mmol) is added to this slurry at 20 °C. A reflux condenser is then fitted to the Schlenk tube, and the reaction mixture is heated under reflux for 8 h. After h, the solid dissolves to yield a clear yellow-green solution. The solvent is removed at 25 °C and 10 torr, leaving a yellow-green solid, which is scraped from the sides of the Schlenk tube with a spatula and transferred to a sublimation tube. Sublimation at 255-260°C and 10 torr affords yellow crystals of tris(2,6-di-tert-butyl-phenoxo)samarium. Yield 4.46 g (62%). ... 

NLiOC,4H22, Lithium, (diethyl ether)[8-(dimethylamino)-l-naphthyll-, 26 154 NLuOC2,H2, Lutetium, ((2-[(dimethyl-amino)methyllphenyl-C, W] (ti - 1,3,5,7-cyclooctatetraeneXtetrahydrofuranK 27 153... 

C78H8 Ag2B2N8, (Cyclo-bis(dipropylamine)-3,3 -bis(2,6-diacetylimino-pyridine))-di-silver(I) tetraphenylborate, 45B, 1210 C8oH8oLi2NeOi,U2, Bis(M Oxo-tris(diphenylamido)uranium(IV)lithium diethyl etherate), 43B, 1340... 

LiNOC ftH22, Lithium, (diethyl ether) [8-(dimethylamino)-l-naphthyl]-, 26 154... 

LiK4O iP2Wi7-20H2O, Lithiohepta-decatungstodiphosphate(9—), a,-, nonapotassium, eicosahydrate, 27 109 LiNC Hi2, Lithium, [2-[(dimethylamino)-methyl]phenyl]>, 26 152 —, Lithium, [2-[(dimethylamino)-phenyl]methyl]-, 26 153 LiNC oH 4, Lithium, [2-[(dimetbylamino)-methyl]-5-methylphenyl]>, 26 152 LiNOC H22, Lithium, (diethyl ether) [8-(dimethylamino)-l-naphthyl]-, 26 154 LiPC H 2, Lithium, [2-... 

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