water in tetrahydrofuran; cyclohexane addn. of 2.0 mmol of the Al compound to 1.5 equiv. of LiCH(Cl)SiMe2Ph at -78°C, followed by warming the mixt. to 23°C, stirring at this temp. for 1 h, and treatment with water at 0°C; ext.; chromy. (silica gel, pentane); yields detd. by GLC; product distribution depends on reaction temp.;

water in tetrahydrofuran; cyclohexane Kinetics; byproducts: (CH3)3Si(C6H5); addn. of 2.0 mmol i-Bu3Al to 1.5 equiv. of LiCH(Cl)SiMe2Ph at -78°C, followed by warming the mixt. to 23°C, stirring at this temp. for 6 h, and treatment with water at 0°C; extn.; chromy. (silica gel, pentane);

water in tetrahydrofuran; cyclohexane addn. of 2.0 mmol of the Al compound to 1.5 equiv. of LiCH(Cl)SiMe2Ph at -78°C, followed by warming the mixt. to 23°C, stirring at this temp. for 6 h, and treatment with water at 0°C; not isolated; yields detd. by GLC;

water in tetrahydrofuran; cyclohexane addn. of 2.0 mmol i-Bu2AlCl to 1.5 equiv. of LiCH(Cl)SiMe2Ph at -78°C, followed by warming the mixt. to 23°C, stirring at this temp. for 48 h, and treatment with water at 0°C; not isolated; yield detd. by GLC;

N,N,N',N,-tetramethylethylenediamine; sec.-butyllithium 1.) THF, cyclohexane, -78 deg C 2.) THF, cyclohexane, -78 deg C then 23 deg C, 48 h; Yield given. Multistep reaction;

N,N,N',N,-tetramethylethylenediamine; sec.-butyllithium 1.) THF, cyclohexane, -78 deg C 2.) THF, cyclohexane, -78 deg C then 23 deg C, 1 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

N,N,N',N,-tetramethylethylenediamine; sec.-butyllithium 1.) THF, cyclohexane, -78 deg C 2.) THF, cyclohexane, -78 deg C then 23 deg C, 6 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

multistep reaction; reaction with other organometals; MechanismProduct distribution;