| abstract |
(57) [Abstract] An object of the present invention is to provide a method for producing a compound. This method uses the formula: Wherein R 1 , R 2 , R 3 and R 4 are each independently a C 1 -C 6 alkyl group, wherein (a) a compound represented by the formula: Wherein R 1 , R 2 , R 3 and R 4 are each independently a C 1 -C 6 alkyl group, in the presence of an alkaline earth metal base. Reacting with a salt of a nitride, and (b) the 3,3 ', 5,5'- Reducing the tetraalkyldiphenoquinone with zinc in the presence of an organic acid. |