1.2- Ethanediamine -tetramethyl lithium complex

NjChHh, 1,2-Ethanediamine, N,N,N, N -tetramethyl-lithium complex, 26 148 NjCmH, 2,2 -Bypyridine rhenium complexes, 26 82, 83 N2C, H, Azobenzene cobalt and palladium complexes, 26 175, 176... 

C5H15O3P, Triethyl phosphite, iron complex, 26 61, 28 171 nickel complexes, 28 101, 104-106 CjHijP, Phosphine, triethyl-, gold-osmium complexes, 27 209, 211 gold-platinum complex, 27 218 nickel complex, 28 101 platinum complexes, 26 126, 135-140, 27 32, 34,28 27, 120, 122, 133, 29 191 C5H16N4, l,2-Ethanediamine,AfJVJV Af -tetramethyl-, lithium complex, 26 148 CjH,6P2, Phosphine, l,2-ethanediylbis(di-methyl-, nickel complex, 28 101 CjHijSi, Silane, triethyl-, ruthenium complex, 26 269... 

A solution of 100 g (0.61 mole) of trimethyl(phenylmethyl)silane [Pfalz and Bauer] and 87.5 mL (0.61 mole) of AI,yV,yV, (V -tetramethyl-l,2-ethanediamine (TMEDA) [Aldrich] dissolved in 150 mL of diethyl ether is placed in a 1-L three-necked flask provided with a dropping funnel, a mercury relief valve, and a magnetic stirrer. This solution is cooled to — 20°, and 364.3 mL (0.61 mole) of a. f> M solution of butyllithium in hexane is added over a 90-min period. After being warmed to room temperature, the reaction mixture is stirred for at least 6.5 hr while the orange-yellow lithium complex salt precipitates. The mixture is cooled to -20°, and a solution of 92.7 g (0.61 mole) of N,N,N, N -tetramethylphosphorodiamidous chloride [Alfa Products] in 80 mL of diethyl ether is added over a period of 90 min. This mixture is allowed to warm to ambient temperature and is stirred for 1 hr. Then the LiCl is Altered and washed... 

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