FIELD: organic chemistry. SUBSTANCE: invention relates to new derivatives of dihydrobenzofuran of the formula (I): 
where A - hydrogen, fluorine or chlorine atom; X - fluorine, chlorine or bromine atom; Y - methyl substituted with one or more halide atoms; Z - methyl; R1 - hydrogen atom and C1-C6-alkyl; R2 is C1-C6-alkyl, C1-C6-haloidalkyl, C1-C6-hydroxyalkyl, C1-C6-alkoxy-C1-C6-alkyl, C1-C6-alkoxy-C1-C6-alkoxy-C1-C6-alkyl, C1-C7-acyloxy-C1-C6-alkyl, carboxyl, C1-C6-alkoxycarbonyl, C1-C6-haloalkoxycarbonyl, C3-C6-cycloalkoxycarbonyl, C2-C6-alkynylalkoxycarbonyl and intermediate compounds of the formula (II) 
and (IV) 
. Invention relates to herbicide composition containing a compound of the formula (I) as an active component taken at effective amount and a method of weed abolishment. EFFECT: improved method of synthesis, enhanced effectiveness of compounds. 9 cl, 74 ex, 9 tbl
