Process for the preparation of 5-nitro-1,4-naphthoquinone

Details Process for the preparation of 5-nitro-1,4-naphthoquinone Process for the preparation of 5-nitro-1,4-naphthoquinone

1974-07-31

1976-03-02

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260369, 260378, C07C 7602

Patent

active

039418154

ABSTRACT:
A process for the preparation of 5-nitro-1,4-naphthoquinone comprising nitrating 1,4-naphthoquinone under such a condition that the dehydrating value of sulfuric acid in the reaction mixture is at least 4 to selectively introduce a nitro group into the 5-position and pouring the reaction mixture into an aqueous medium to precipitate the product.

REFERENCES:
patent: 2687939 (1954-08-01), Sartari
Methoden der Organ. Chemie (Houben-Weyl), 4th Ed., 1971, X/I, p. 614.
De La Mare, Aromatic Substitution, (London), 1959, p. 63.

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