4-cyano-1- (trifluoromethoxy)pyridin-1-ium bis((trifluoromethyl)sulfonyl)amide 、
苯妥英 在
tris(2,2-bipyridine)ruthenium(II) hexafluorophosphate 作用下,
以
乙腈 为溶剂,
反应 1.0h,
生成 5-phenyl-5-(2-(trifluoromethoxy)phenyl)imidazolidine-2,4-dione 、 5-phenyl-5-(3-(trifluoromethoxy)phenyl)imidazolidine-2,4-dione 、
5-phenyl-5-(4-(trifluoromethoxy)phenyl)imidazolidine-2,4-dione