N,N,N',N,-tetramethylethylenediamine in diethyl ether; hexane T=20°C; 1 h; Yield given. Yields of byproduct given;

N,N,N',N,-tetramethylethylenediamine in diethyl ether T=20°C; Yield given. Yields of byproduct given. Title compound not separated from byproducts;