反应详情

using 3-(4-chloro-2-fluoro-5-methoxyphenyl)-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione and dimethyl sulphate there is obtained 3-(4-chloro-2-fluoro-5-methoxyphenyl)-1-methyl-6-trifluoromethyl-2,4-(1H,3H)-pyrimidinedione, m.p. 128°-130° C.;