Process for preparing highly pure 1-nitroanthraquinone

Details Process for preparing highly pure 1-nitroanthraquinone Process for preparing highly pure 1-nitroanthraquinone

1976-10-29

1977-12-27

Curtis, Allen B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260523A, 260524N, 260590FB, 560 51, C07C 4968, C09B 104

Patent

active

040654770

ABSTRACT:
1-Nitroanthraquinone is produced in highly pure form by a process comprising the steps of partially oxidizing 3-nitro-o-xylene (I) to 2-methyl-3-nitrobenzoic acid (II) converting II to 2-methyl-3-nitrobenzoyl halide (III), converting III to the novel intermediate 2-methyl-3-nitrobenzophenone (IV), oxidizing IV to 2-benzoyl-6-nitrobenzoic acid (V) and cyclizing V to 1-nitroanthraquinone.

REFERENCES:
patent: 1856231 (1932-05-01), Stowell
patent: 3032560 (1962-05-01), Dawsey
patent: 3416257 (1976-03-01), Schaffner et al.
patent: 3932474 (1976-01-01), Arzoumanidis et al.
Blakey et al., "Nitration and Bromination of 4 Methylbenzophenone", vol. 23, 1929, p. 129 in Chem. Abs.
Chardonnens L., "The Nitration of 4-CH.sub.3 benzophenone", in Chem. Abs. vol. 23, 1929, p. 4687.
Weiss et al., "Preparation of Acridone Derivatives", in Chem. Abs., 1929, p. 839, vol. 23.

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