Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-11-02
1996-02-13
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546286, 546303, 546304, C07D21361, C07D21373
Patent
active
054912393
ABSTRACT:
A method for halogenating an aromatic compound, which comprises reacting the aromatic compound of the formula (I): ##STR1## wherein X is a hydroxyl group, an amino group or an acylamino group, each of Z.sub.1 and Z.sub.2 is a hydrogen atom or a halogen atom, one of R and Y is a hydrogen atom and the other is a nitro group, a cyano group or a trifluoromethyl group, and Q is a nitrogen atom or --C(T).dbd. (wherein T is a hydrogen atom, a halogen atom, a nitro group, a cyano group or a trifluoromethyl group), with a halogenating agent to obtain a 3-halogenoaromatic compound of the formula (II): ##STR2## wherein one of R' and Y' is a halogen atom and the other is a nitro group, a cyano group or a trifluoromethyl group, and X, Z.sub.1, Z.sub.2 and Q are as defined above.
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Ariyoshi Hayato
Hamaguchi Motohiko
Nasu Rikuo
Ishihara Sangyo Kaisha Ltd.
Ivy C. Warren
M. Mach D. Margaret
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