Patent attributes
There is provided a method for producing a coupling compound of formula (1):(Y—)(n−1)R1—R2—(R1)(n′−1) (1)wherein R1, R2 n and n′ are as defined below, Y is R2 or X as defined below, which method comprises reacting an organic halogen compound of formula (2):n′(R1X1n) (2)wherein X1 represents a bromine or iodine, R1 represents a substituted or unsubstituted, linear, branched or cyclic hydrocarbon group of which α and β carbon atoms in relation to X1 are sp3 carbon atoms, n and n′ each independently represent an integer of 1 or 2, and provided that n and n′ do not simultaneously represent 2, with an organic boron compound of formula (3):m{R2(BX22)n′} (3)wherein R2 represents a substituted or unsubstituted aryl group or a substituted or unsubstituted alkenyl group and the boron atom is bonded with a sp2 carbon atom thereof, X2 represents a hydroxyl or alkoxy group, n′ is as defined above, m represents an integer of 1 or 2, and m is not more than n, in the presence of a catalyst comprising a) a nickel compound, andb) b-1) a compound of formula (i):
