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 reac - tion 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.
本发明涉及一种生产式(1)所代表化合物的方法,该方法包括在酸性或碱性条件下
水解式(2)所代表化合物的步骤、使式(3)所代表化合物和
乙酸金属盐相互反应的步骤,以及卤化式(4)所代表化合物的步骤;一种生产式(1)所代表化合物的方法,其中包括使式(3)所代表化合物和
乙酸金属盐相互反应,然后通过向生成的反应液中加入醇、
水和碱而进一步反应的步骤;一种生产由式(1)代表的化合物的方法,其中包括一个步骤,使由式(3)代表的化合物在碱存在或不存在的情况下,在
水中或在
水和有机溶剂的混合溶剂中发生反应;由式(2)代表的化合物或其盐类;以及由式(3)代表的化合物或其盐类。