methanol; lithium dimethylaminonaphthalenide 1.) THF, -78 deg C, 10 min, 2.) THF, -78 deg C to room temp.; Yield given. Multistep reaction;

1: 1.) lithium 4,4'-di-tert-butylbiphenylide / 1.) THF, -78 deg C, 10 min, 2.) THF, -78 deg C to room temp. 2: 1.) n-BuLi, lithium 4,4'-di-tert-butylbiphenylide, 2.) MeOH / 1.) THF, hexane, -78 deg C, 10 min, 2.) THF, hexane, -78 deg C View Scheme