Preparation of dinitrotoluenes

Details Preparation of dinitrotoluenes Preparation of dinitrotoluenes

1989-10-24

1991-02-26

Stoll, Robert L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C20506

Patent

active

049963767

ABSTRACT:
Dinitrotoluenes are prepared by reacting mononitrotoluene(s) with nitric acid, in liquid phase, in the presence of an inorganic and acidic solid including at least one component selected from among orthophosphoric acid, pyrophosphoric acid, metaphosphoric acid, a metal dihydrogen phosphate, a metal hydrogen phosphate, a metal orthophosphate or a metal pyrophosphate, such metal cations having from 1 to 5 positive charges.

REFERENCES:
patent: 2012985 (1935-09-01), Castner
patent: 2400287 (1946-05-01), Caesar
patent: 3409620 (1968-11-01), Ohman et al.
patent: 3488397 (1970-01-01), Hakansson et al.
patent: 3714272 (1973-01-01), Coon et al.
patent: 3981933 (1976-09-01), Cook et al.

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