Low cost 3, 4 - difluoro nitrobenzene was prepared from 2, 4 - dinitrochlorobenzene by two - step fluorination.二硝基氯苯经二步氟化反应,制得低成本3, 4- 二氟硝基苯....

二硝基氯苯，二硝基氯化苯...

dinitrochlorobenzene的音标：dinitrochlorobenzene的英式发音音标为：['daɪnaɪtrəʊklərəbenzi:n]dinitrochlorobenzene的美式发音音标为：['daɪnaɪtroʊklərəbenzin]...