Process for the preparation of 3-bromo-4- fluorotoluene

Details Process for the preparation of 3-bromo-4- fluorotoluene Process for the preparation of 3-bromo-4- fluorotoluene

C - Chemistry, Metallurgy

07

C

260/653.5

C07C 25/13 (2006.01) C07C 17/12 (2006.01)

Patent

CA 1144947

Bayer 4607-LH Le A 20 210-US Rt/B?t 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.

372043

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