| abstract |
A catalyst of bis(8-quinolinolate) copper (II) complex having the formula <IMAGE> which is used for producing a hydroxyphenyl aliphatic acid derivative having the formula <IMAGE> (I) wherein R1 represents hydrogen atom, a lower alkyl group, a lower alkoxy group, hydroxy group or a lower alkylcarbonyl group; R2 and R3 are the same or different and respectively represent hydrogen atom or a lower alkyl group; and m is 1 or 2; l is 0, 1 or 2; n is 0, 1 or 2; by reacting a halophenyl aliphatic acid derivative having the formula <IMAGE> (II) wherein R1, R2, R3, m, l and n are defined above and R4 represents hydrogen atom or a monovalent hydrocarbon moiety; and X represents a halogen atom, with a base. |