Process for the production of halobenzophenone derivatives

Details Process for the production of halobenzophenone derivatives Process for the production of halobenzophenone derivatives

1989-07-13

1990-10-02

Reamer, James H.

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

Organic compounds

Oxygen containing

568309, C07C 4527

Patent

active

049609459

ABSTRACT:
The present invention relates to a process for the production of halobenzophenone derivatives represented by the following formula (II): ##STR1## wherein X and Y are the same or different and are independently F, Cl, Br or I, m stands for an integer of from 1 to 4 and n stands for an integer of from 0 to 4. The process comprises oxidizing a compound with an aqueous nitric acid solution having a specific gravity of from 1.32 to 1.47 at 20.degree. C., said compound being represented by the following formula (I): ##STR2## wherein X, Y, m and n have the same meanings as defined above and Z is Cl or H.

REFERENCES:
patent: 2542985 (1951-02-01), Bond
patent: 4086277 (1978-04-01), Onopchenko et al.
Article by J. Forrest et al., Journal of the Chemical Society, (1946), pp. 333-339.
Article by H. L. Bradlow et al., Journal of the American Chemical Society, vol. 69, No. 3, pp. 477, 662-663.
Article by O. G. Backeberg et al., Journal of the Chemcial Society, 803, (1945), pp. 803-805.
Japanese Patent Application Laid-Open No. 126829/1983, pp. 251-253.

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