3-[4-Chloro-2-fluoro-5-(4-amino-2-trifluoromethylphenoxy)phenyl]-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione 、
亚硝酸特丁酯 、
水 在
氮气 、
乙酸乙酯 、 Brine 、
Sodium sulfate-III 、 silica gel 、
3-[4-Chloro-2-fluoro-5-(2-trifluoromethylphenoxy)phenyl]-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.5h,
以3-[4-Chloro-2-fluoro-5-(2-trifluoromethylphenoxy)phenyl]-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione (Intermediate 11-28) was isolated as an amorphous solid (1.64 g)的产率得到3-[4-Chloro-2-fluoro-5-(2-trifluoromethylphenoxy)phenyl]-6-trifluoromethyl-1,2,3,4-tetrahydropyrimidine-2,4-dione