Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1982-06-16
1984-07-17
Waltz, Thomas A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C07C 8524, C07C 8760
Patent
active
044607881
ABSTRACT:
The invention relates to a process for the preparation of anilines which are m-substituted by chlorine, by selective dehalogenation of more highly chlorinated anilines in an acid medium in the presence of noble metal catalysts and in the presence of optionally substituted phenols.
The 3-chloro- or 3,5-dichloroanilines obtainable by the process according to the invention are known intermediate products, and can be used for the preparation of plant protection agents.
REFERENCES:
patent: 3888929 (1975-06-01), Rivier
patent: 4193937 (1980-03-01), Wedemeyer et al.
patent: 4206147 (1980-06-01), Daumas et al.
patent: 4206148 (1980-06-01), Biola et al.
patent: 4324914 (1982-04-01), Cordier
patent: 4340759 (1982-07-01), Cordier
patent: 4351959 (1982-09-01), Cordier
Evertz Werner
Hagedorn Ferdinand
Wedemeyer Karlfried
Bayer Aktiengesellschaft
Waltz Thomas A.
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