2-(4-hydroxy-2,3-dimethyl-phenoxy)-2-methyl-propionic acid ethyl ester 、
{1-methyl-3-[4-(trifluoromethoxy)phenyl]-1H-pyrazol-5-yl}methanol 、
偶氮二甲酰胺 、
三丁基膦 以to give 2-{2,3-dimethyl-4-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-ylmethoxy]-phenoxy}-2-methyl-propionic acid ethyl ester as colorless liquid的产率得到2-{2,3-dimethyl-4-[2-methyl-5-(4-trifluoromethoxy-phenyl)-2H-pyrazol-3-ylmethoxy]-phenoxy}-2-methyl-propionic acid ethyl ester