Solvent modification of nitrations by N.sub.2 O.sub.4 /metal ace

Details Solvent modification of nitrations by N.sub.2 O.sub.4 /metal ace Solvent modification of nitrations by N.sub.2 O.sub.4 /metal ace

1982-06-10

1983-11-22

Sebastian, Leland A.

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

Organic compounds

Oxygen containing

C07C 7910

Patent

active

044170807

ABSTRACT:
Aromatic hydrocarbons are nitrated by reacting the aromatic hydrocarbon in a nitrogen tetroxide-containing liquid reaction medium, in the presence of a beta-dicarbonyl compound having a "W" configuration with a carbonyl group at each apex of the "W", such as a metal acetylacetonate, preferably at a pressure and temperature sufficient to maintain the nitrogen tetroxide in the liquid state. Addition of an inert organic co-solvent to the liquid nitrogen tetroxide for the metal acetylacetonate promoted nitration of benzene essentially eliminates the production of dinitrobenzenes.

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D. S. Ross and W. G. Blucher, "A Novel Nitration System" 174th Meeting of Am. Chem. Soc., Chicago, Ill., Aug. 1977.

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