Thus most of the toluene is converted to 2:4 and 2:6 dinitrotoluene. When the standard sulphuric/nitric acid nitrating mixture is used these two isomers are produced in the ratio 80:20 2.4:2.6 dinitrotoluene, which is the desired ratio for isocyanate production. Some of the so called "...
The distribution of isomers in mononitration of toluene is demonstrated to be dependent upon the properties of the solvents involved. An empirical model has been derived to relate the isomer ratio with the dipole moments and dielectric constants of the solvents. Based on this observation, an ...
of such nitrotoluenes, particularly mixtures of isomeric di- and trinitrotoluenes, can be nitrated, under the same conditions as used for nitrating purified toluene to TNT, to produce military specification grade TNT in excellent yield. This was not to be expected, since in the past it has be...
A qualitative and quantitative influence exerted by addition of detonation nanodiamonds on the formation selectivity of mononitrotoluene isomers in the heterophase nitration of toluene with a sulfuric-nitric acid mixture having low nitration activity was found. It is shown that the isomer ratio of the ...
Additionally, in that case, the reaction was revealed to be so fast to prevent the determination of absolute rate constants; the use of a competitive method for benzene and toluene substrates led to a ratio of rate constants 𝑘T/𝑘B≈2kT/kB≈2, but the high positional selectivity for ...