The present invention provides a method for producing a compound of Formula (4): wherein R
1
is a hydrogen atom etc. by reacting a compound of Formula (2): wherein X
1
is a leaving group, with a compound of Formula (3): wherein R
1
is as defined above, in the presence of (a) a palladium compound and a tertiary phosphine or (b) a palladium carbene complex, in an inert solvent or without a solvent. The present invention can produce the compound of Formula (4), with high purity and high yield, and by a simple operation.
本发明提供了一种制备公式(4)化合物的方法:其中R1为氢原子等,通过在惰性溶剂中或不使用溶剂的情况下,在存在(a)
钯化合物和三级膦或(b)
钯卡宾配合物的情况下,通过将公式(2)化合物:其中X1是离去基团,与公式(3)化合物:其中R1如上定义,反应。本发明可以通过简单的操作,高纯度和高收率地制备公式(4)化合物。