The present invention relates to: a method for producing a compound represented by formula (1), which comprises a step for hydrolyzing a compound represented by formula (2) under acidic or basic conditions, a step for reacting a compound represented by formula (3) and a metal acetate salt with each other, and a step for halogenating a compound represented by formula (4)； a method for producing a compound represented by formula (1), which comprises a step for reacting a compound represented by formula (3) and a metal acetate salt with each other and then causing a further reaction by adding an alcohol, water and a base into the resulting reaction liquid； a method for producing a compound represented by formula (1), which comprises a step for causing a reaction of a compound represented by formula (3) in the presence or absence of a base, an ionic liquid and a metal sulfate salt in water or in a mixed solvent of water and an organic solvent； a compound represented by formula (2) or a salt thereof； and a compound represented by formula (3) or a salt thereof.本發明乃是式[1]所示之化合物之製造方法，其係包含將式[2]所示之化合物於酸性或鹼性條件下進行水解之步驟，及使式[3]所示之化合物與金屬乙酸鹽類反應之步驟，及將式[4]所示之化合物鹵素化之步驟。本發明係式[1]所示之化合物之製造方法，其係包含使式[3]所示之化合物與金屬乙酸鹽類反應，之後，於反應液中加入醇、水、鹼使其反應之步驟，且本發明之式[1]所示之化合物之製造方法，包含使式[3]所示之化合物於鹼、離子液體及金屬硫酸鹽類的存在下或非存在下，在水中或水與有機溶劑之混合溶劑中反應之步驟，又本發明係關於一種式[2]所示之化合物或其鹽、及式[3]所示之化合物或其鹽。
