Dear Sudhakar,

The reactions of n-butyllithium or t-butyllithium are generally carried out in simple hydrocarbons such as pentane and hexane, ethers such as diethyl ether or THF and tertiary amines such as tetramethylethylenediamine (TMEDA) or mixtures of two kinds of the mentioned solvents in low temperatures.

TMEDA will be a good choice to carry out your reaction in.

Köhler, F. H.; Hertkorn, N.; Blümel, J. CB 1987, 120, 2081.

http://reag.paperplane.io/00000502.htm

Hoping this will be helpful,

Rafik

Dear Rafik,

Thank you for your valuable suggestion.

Distillated THF is the best solvent with t-butyl lithum

dry THF is suitable