FIELD: chemistry.
SUBSTANCE: invention refers to production method of 1-(4-chlorophenyl)-2-cyclopropylpropane-1-one 
being a by-product for making biologically active substances, as well as to production method for 1-(4-chlorophenyl)-2-methyl-3-butene-1-one 
being a by-product for making 1-(4-chlorophenyl)-2-cyclopropylpropane-1-one. Production method for 1-(4-chlorophenyl)-2-cyclopropylpropane-1-one consists that 4-chlorobenzonitrile reacts with crotyl chloride or bromide and zinc in organic solvent and optionally with aluminium chloride. Hydrolysis of reaction mixture 2M with hydrochloric acid results in separation 1-(4-chlorophenyl)-2-methyl-3-butene-1-one thereafter purified. It reacts dibromomethane, zinc and copper monochloride in organic solvent with catalyst added or in ultrasonic bath. It is followed with separation of end product by common method.
EFFECT: simple and cheaper end production methods.
4 cl, 2 dwg, 9 ex
