Nitration of phthalic acid and phthalic anhydride using nitric a

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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562434, 562856, 562887, C07D30777

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active

051552345

ABSTRACT:
A process for the preparation of nitrophthalic acid by the nitration of phthalic acid and/or phthalic anhydride using only nitric acid, said nitric acid having a concentration of at least about 95% by weight, and then recovering the nitrophthalic acid formed from the nitric acid solution.

REFERENCES:
patent: 3981933 (1976-09-01), Cook et al.
patent: 4902809 (1990-02-01), Groeneweg
patent: 4921970 (1990-05-01), Odle
Hughes, et al., "Kinetics and Mechanism of Aromatic Nitration," Part II, pp. 2400-2440 (1949).
Noller, "Chemistry of Organic Compounds," pp. 439-455 (1957).

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