Nitration processes

Details Nitration processes Nitration processes

1988-07-05

1990-02-20

Terapane, John F.

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

Organic compounds

Amino nitrogen containing

568932, 568933, 568934, 568940, 568706, C07C 8524, C07C 7910

Patent

active

RE0331686

ABSTRACT:
The present invention relates to improvements in processes of preparing dinitrated [aromatic compounds, particularly dinitrated aniline and dinitrated substituted aniline compounds, employing relatively dilute and then more concentrated nitric acid as the nitrating agent] aniline and substituted phenol compounds in a two-step process, employing, in the first or mononitration step the spent nitric acid from the second of dinitration step.

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Bunton, C. A. et al., Journal of the Chemical Society, (London), 1950, "Kinetics and Mechanism of Aromatic Nitration, Part VI, The Nitration of Phenols and Phenolic Ethers: The Concomitant Dealkylation of Phenolic Ethers, The Role of Nitrous Acid", pp. 2628-2656.
Glazer et al., "Kinetics & Mechanism of Aromatic Nitration, Part VII, Products of Nitration of Aniline Derivatives, Especially of Dimethylaniline", Journal of Chemical Society, 1950, pt. 3, pp. 2657-2678.

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