| abstract |
We provide a novel and useful process for preparing triphenyl-butene derivative. A process for the preparation of a compound represented by Formula (IV): n n n n n n n n n n wherein R 1 is hydrogen or substituted or unsubstituted alkyl,n ncharacterized by reacting a compound represented by Formula (V):n n n n n n n n n n n with a compound represented by Formula (VI): n n n n n n n n n n wherein R 1 has the same meaning as defined above,n nin the presence of 1) a polyvalent metal chloride, 2) a reducing agent and 3) an alkali metal salt and/or a substituted or unsubstituted phenol. |