| 摘要 |
Aromatic nitration reactions and, more specifically, a process for nitrating toluene to dinitrotoluene or benzene to mononitrobenzene. Since mononitrobenzene is useful in producing MDI and since dinitrotoluene is useful as an intermediate in producing TDI, new processes for the selective manufacture of these intermediates would be highly desirable to the polyisocyanate manufacturing community. |
