A note on the nitration of metadichlorobenzene The nitration of m-dichlorobenzene according to the method of Nietzki and schelder (Ber., 1897, 30, 1666) gives principally 4:6 dinitro- 1:3 dichlorobenzene (1). The formation of considerable quantities of a mixture of the nitro derivati... ...
The matching of the micro-dispersion method and the reaction kinetics is of the utmost importance for the fast and strongly exothermic nitration reaction. Taken as an example to discuss this issue, a synthesis of 3,4-dichloronitrobenzene via the nitration of o -dichlorobenzene with mixed acid ...
Of these, a para-isomer of a monohalogenated mononitrobenzene, is useful as an intermediate for p-nitroaniline or p-phenylene diamine which are important as materials for producing dyes or synthetic fibers. Furthermore, 1,2-dichloro-4-nitrobenzene (a nitration product of o-dichlorobenzene) and ...
The second stage of nitration of m-dichlorobenzene with mixture of nitric and sulfuric acid is studied in this paper. The compound 1,5-dichloro-2,4-dinitrobenzene is synthesized from m-dichlorobenzene, and through the orthogonal experiment the best process conditions of ...
The nitration of m-dichlorobenzene according to the method of Nietzki and schelder (Ber., 1897, 30, 1666) gives principally 4:6 dinitro- 1:3 dichlorobenzene (1). The formation of considerable quantities of a mixture of the nitro derivatives of m-dichlorobenzene as bye-product has been ...
The characteristics are that: N2O5-HNO3 is added to a kettle in a dropwise manner to carry out a nitration reaction, wherein the kettle is filled with para dichlorobenzene with a content more than 98%; after the reaction is completed, standing is performed for 1 hour to obtain a 2,5-di...
The preparation of 2,3 dichloronitrobenzene from O dichlorobenzene Via mixed acids adiabatic nitration is studied. 系统地研究了邻二氯苯混酸绝热硝化的 DVS值、混酸组成及摩尔比等因素对 2 ,3-二氯硝基苯收率的影响 。 更多例句>> 4) continuous process of nitration 连续硝化5...