Process for the preparation of chloronitroanilines and chloronit

Details Process for the preparation of chloronitroanilines and chloronit Process for the preparation of chloronitroanilines and chloronit

1987-11-25

1989-11-07

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

568709, C07C 8524, C07C 7932

Patent

active

048794155

ABSTRACT:
The invention relates to a process for the preparation of chloronitroanilines or chloronitrophenols, which comprises chlorinating nitroanilines or nitrophenols in hydrochloric acid by adding simultaneously separate streams of nitroanilines or nitrophenols and of a chlorinating agent to said hydrochloric acid. The process affords pure products in good yield. An accumulation of chlorine during the reaction is avoided.
Chloronitroanilines and chloronitrophenols are useful intermediates for the snythesis of disperse dyes.

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patent: 4613698 (1986-09-01), Arndt et al.
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Chemical Abstract, vol. 103, (Oct. 14, 1985), No. 15, Cover page and p. 694, Abstract No. 123139e, "2,6-Dichloro-4-nitrophenol".
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DE-C-610613 (1.44776.) Kl. 12q, 1o2. I. G. Farbenindustrie Akt. Ges. in Franakfurt A. M., Erfinder: Dr. Gustav Reddelien-Dr. Heinrich Ohlendorf.
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