| 摘要 |
A method is described for preparing 2,6-diethyl-4-methylphenylacetic acid of formula (I)comprising reacting 2,6-diethyl-2-methylbromobenzene of formula (II)with tert-butyl acetate, optionally in the presence of a base, a phosphine ligand, a palladium compound and a diluent, and then reacting with an acid or 2,6-diethyl-4-methylphenylmalononitrile of formula (III)with an acid, optionally in the presence of a diluent. 2,6-Diethyl-4-methylphenylacetic acid as haloanhydride is used as a reagent for producing herbicidal active derivatives of 2,6-diethyl-4-methylphenyl-substituted tetramic acid. |
