| 摘要 |
FIELD: organic chemistry. SUBSTANCE: invention relates to new derivatives of dihydrobenzofuran of the formula (I): <EMI ID=0.283 HE=30 WI=42 TI=CHI> where A - hydrogen, fluorine or chlorine atom; X - fluorine, chlorine or bromine atom; Y - methyl substituted with one or more halide atoms; Z - methyl; R - hydrogen atom and C<SB>1</SB>-C<SB>6</SB>-alkyl; R is C<SB>1</SB>-C<SB>6</SB>-alkyl, C<SB>1</SB>-C<SB>6</SB>-haloidalkyl, C<SB>1</SB>-C<SB>6</SB>-hydroxyalkyl, C<SB>1</SB>-C<SB>6</SB>-alkoxy-C<SB>1</SB>-C<SB>6</SB>-alkyl, C<SB>1</SB>-C<SB>6</SB>-alkoxy-C<SB>1</SB>-C<SB>6</SB>-alkoxy-C<SB>1</SB>-C<SB>6</SB>-alkyl, C<SB>1</SB>-C<SB>7</SB>-acyloxy-C<SB>1</SB>-C<SB>6</SB>-alkyl, carboxyl, C<SB>1</SB>-C<SB>6</SB>-alkoxycarbonyl, C<SB>1</SB>-C<SB>6</SB>-haloalkoxycarbonyl, C<SB>3</SB>-C<SB>6</SB>-cycloalkoxycarbonyl, C<SB>2</SB>-C<SB>6</SB>-alkynylalkoxycarbonyl and intermediate compounds of the formula (II) <EMI ID=0.284 HE=33 WI=42 TI=CHI> and (IV) <EMI ID=0.285 HE=42 WI=45 TI=CHI>. 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
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