| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of producing compounds of formula , in which X denotes fluorine, chlorine, bromine or iodine and n equals 1, 2, 3 or 4, which involves reaction of a compound of formula , in which substitutes are as defined for formula I, with an inorganic nitrite in an acidic aqueous medium in the presence a bromide and a copper-containing catalyst. The method is carried out in form of a single-reactor reaction. ^ EFFECT: obtaining said compounds with high output and high quality using a cheap and easy method. ^ 12 cl, 4 ex, 1 tbl |
