There is provided a method for producing a coupling compound of formula (1):
(Y—)
(n−1)
R
1
—R
2
—(R
1
)
(n′−1)
(1)
wherein R
1
, R
2
n and n′ are as defined below, Y is R
2
or X as defined below, which method comprises reacting an organic halogen compound of formula (2):
n′(R
1
X
1
n
) (2)
wherein X
1
represents a bromine or iodine, R
1
represents a substituted or unsubstituted, linear, branched or cyclic hydrocarbon group of which &agr; and &bgr; carbon atoms in relation to X
1
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{R
2
(BX
2
2
)
n′
} (3)
wherein R
2
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, X
2
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, and
b) b-1) a compound of formula (i):
1
or
b-2) a compound of formula (ii):
2
提供了一种生产式(1)偶联化合物的方法:
(Y-)
(n-1)
R
1
-R
2
-(R
1
)
(n′-1)
(1)
其中 R
1
, R
2
n 和 n′定义如下,Y 是 R
2
或如下定义的X,该方法包括使式(2)的有机卤素化合物反应:
n′(R
1
X
1
n
) (2)
其中 X
1
代表
溴或
碘,R
1
代表取代或未取代的、线性、支链或环状烃基,其中 &agr; 和 &bgr; 碳原子相对于 X
1
均为 sp3 碳原子,n 和 n′各自独立地代表 1 或 2 的整数,且 n 和 n′不同时代表 2,具有式 (3) 的有机
硼化合物:
m{R
2
(BX
2
2
)
n′
} (3)
其中 R
2
代表取代或未取代的芳基或取代或未取代的烯基,且
硼原子与其中的 sp2 碳原子键合,X
2
代表羟基或烷氧基,n′如上定义,m 代表 1 或 2 的整数,且 m 不大于 n。
b) b-1) 式 (i) 的化合物:
1
或
b-2) 式 (ii) 的化合物:
2