Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1994-11-22
1995-12-12
Evans, Joseph E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570143, C07C 1704, C07C 17383, C07C 17395, C07C 2513
Patent
active
054751640
ABSTRACT:
3-Fluoro-4,6-dichlorotoluene is prepared with reduced formation of 3-fluoro-2,6-dichlorotoluene by chlorinating 3-fluorotoluene in the presence of a catalyst system to give a mixture containing 3-fluoro-6-chlorotoluene and 3-fluoro-4-chlorotoluene and chlorinating this in the presence of another catalyst system to give 3-fluoro-4,6-dichlorotoluene.
REFERENCES:
patent: 1946040 (1934-02-01), Stoesser et al.
patent: 3234292 (1966-02-01), Robota et al.
patent: 4439620 (1984-03-01), Klauke et al.
patent: 4769503 (1988-09-01), Parg et al.
patent: 4851596 (1989-07-01), Mais et al.
English translation of 0 114 604 (1994).
Bayer Aktiengesellschaft
Evans Joseph E.
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