Manufacture of halonitrobenzenes
AssigneeBASF SE
InventorsUlrich Jersak, Horst Scheuermann
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Abstract
Halonitrobenzenes are manufactured by reacting halonitroanilines with alkanols and nitrosating agents in the presence of water and an acid at not less than 35.degree. C. The products are starting materials for the manufacture of pharmaceuticals, dyes and pesticides.
Claims14
A process for the manufacture of halonitrobenzenes of the formula ##STR15## where R.sup.1 and R.sup.2 may be identical or different and each is halogen, and R.sup.2 may also be hydrogen, by reacting halonitroanilines with alcohols and nitrosating agents at elevated temperatures in the presence of an acid, wherein halonitroanilines of the formula ##STR16## where R.sup.1 and R.sup.2 have the above meanings, are reacted with aliphatic, cycloaliphatic or araliphatic alcohols, which may be partly or wholly combined with the nitrosating agent, at not less than 35.degree. C., in the presence of water.
Dependencies are inferred from the claim text.