Process for producing chlorofluorobenzenes
AssigneeAsahi Glass Company, Limited
InventorsSeisaku Kumai, Akihiro Wada, Shinsuke Morikawa
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Abstract
A process for producing chlorofluorobenzenes, which comprises reacting fluorine-containing nitrobenzenes of the following formula (1) with chlorine gas to obtain chlorofluorobenzenes of the following formula (2): ##STR1## wherein n and m are integers satisfying 1.ltoreq.n.ltoreq.3, 0.ltoreq.m.ltoreq.2 and 1.ltoreq.n+m.ltoreq.3.
Claims2
A continuous process for producing chlorofluorobenzenes, which comprises reacting the nitrobenzene of formula (6) in the vapor phase with chlorine gas at 300.degree.-600.degree. C. to obtain a chlorofluorobenzene of formula (7):
- ##STR7## wherein each of Y.sup.1 and Y.sup.2 is H or F.
A process for producing chlorofluorobenzenes, which comprises reacting aromatic nitro compounds of formula (5) with a fluorinating agent to obtain fluorine-containing nitrobenzenes having formula (6), and then reacting the nitrobenzene of formula (6) in the vapor phase with chlorine gas at 300.degree.-600.degree. C. to obtain a chlorofluorobenzene of formula (7):
- ##STR8## wherein each of X.sup.1, X.sup.2, Y.sup.1 and Y.sup.2 is H or F.
Dependencies are inferred from the claim text.