Tripotassium;phosphate 、
5-(3-bromo-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester 、
苯并呋喃-2-硼酸 以gave 5-(3-benzofuran-2-yl-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester in 73% yield as light brown foam的产率得到5-(3-benzofuran-2-yl-phenyl)-1,4-dimethyl-1H-pyrazole-3-carboxylic acid ethyl ester