反应详情

using 3-(4-chloro-2-fluoro-5-isopropoxyphenyl)-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione and dimethyl sulphate there is obtained 3-(4-chloro-2-fluoro-5-isopropoxyphenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione, m.p. 90°-93° C.;