Preparation of 3-bromo-4-fluorotoluene

Details Preparation of 3-bromo-4-fluorotoluene Preparation of 3-bromo-4-fluorotoluene

1981-02-11

1982-09-28

Waltz, Thomas A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 2513

Patent

active

043519741

ABSTRACT:
In the preparation of 3-bromo-4-fluorotoluene by reacting 4-fluorotoluene with bromine, the improvement which comprises effecting the bromination in glacial acetic acid in the presence of iodine and iron or an iron salt. As a result the proportion of 3-bromo-4-fluorotoluene relative to its 2-bromo-4-fluorotoluene isomer is markedly increased.

REFERENCES:
patent: 3591645 (1971-07-01), Selwitz
Chem. Abst., vol. 62, 7662f (1965), Jargillo.
Chem. Abst., vol. 64, 9649c (1966) Merhar et al.
Chem. Abst., vol. 80, 132, 990j, 132992m, 132993n (1974), Komiyama et al.
Chem. Abst., vol. 81, 25308s (1974) Komiyama.

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