| 摘要 |
PURPOSE:To readily obtain the titled compound useful as a synthetic intermediate for pyrethroid compound having insecticidal and acaricidal activity, by reacting an amide compound readily obtainable as an industrial raw material with a base. CONSTITUTION:An amide compound shown by formula I (R is lower alkyl) is used as a raw material and reacted with a base such as sodium hydroxide, sodium methoxide or ammonia to give the aimed compound. The amounts of the amide compound shown by formula I and the base used are >=1 equivalent base based on 1 equivalent compound shown by formula I. When ammonia is used as the base, the reaction is ordinarily carried out under several kg/ cm<2>-100kg/cm<2> pressure. The compound shown by formula I is obtained by amidating an ester compound shown by formula II (R' is lower alkyl) and the compound shown by formula II is prepared by reacting a compound shown by formula III with a propargyl halide.
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