反应详情

using 3-(4-chloro-2-fluoro-5-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedione and mono (2-chloroethyl) succinate with N,N'-dicyclohexylcarbodiimide and 4-dimethylaminopyridine as the catalyst in methylene chloride there is obtained 2-chloro-5-[3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1(2H) -pyrimidinyl]-4-fluorophenyl 2-chloroethyl succinate. m.p. 94°-96° C.;