申请人:Hoechst Aktiengesellschaft
公开号:US04847426A1
公开(公告)日:1989-07-11
A process for the preparation of 2,4-dinitrophenyl ethers of the general formula (1) ##STR1## in which R denotes an alkyl(C.sub.1 -C.sub.6) or alkoxy(C.sub.1 -C.sub.4)alky(C.sub.1 -C.sub.4) group by reacting 1 mole of 2,4-dinitrochlorobenzene in the anhydrous alcohol which is required for the ether formation and is of the general formula (2) R--OH (2) in which R has the abovementioned meaning, in the presence of 1.0 to 3.0 mole of an anhydrous alkali metal carbonate, at temperatures of 20.degree. C. to 150.degree. C., where appropriate under pressure.
一种制备通式(1)的2,4-二硝基苯醚的方法##STR1##其中R表示烷基(C.sub.1-C.sub.6)或烷氧基(C.sub.1-C.sub.4)烷基(C.sub.1-C.sub.4)基团,通过在需要用于醚形成的无水醇中,将1摩尔的2,4-二硝基氯苯与通式(2)R--OH(2)中R具有上述含义的1.0至3.0摩尔的无水碱金属碳酸盐存在下反应,在20°C至150°C的温度下进行,必要时加压。