申请人:GOWAN COMPANY, L.L.C.
公开号:US20200399263A1
公开(公告)日:2020-12-24
A process for preparing a compound represented by Formula [1], the process comprising a step of hydrolyzing a compound represented by Formula [2] under an acidic or basic condition, and a step of reacting a compound represented by Formula [3] with a metal acetate salt, and a step of halogenating a compound represented by Formula [4]; a process for preparing a compound represented by Formula [1] comprising a step of reacting a compound represented by Formula [3] with a metal acetate salt, and then, adding alcohol, water, or base to the reaction solution to perform reaction; a process for preparing a compound represented by Formula [1] comprising a step of reacting a compound represented by Formula [3] under a presence or absence of a base, an ionic liquid and a metal sulfate salt, in water or a mixed solvent of water and an organic solvent; a compound represented by Formula [2] or a salt of the same; and a compound represented by Formula [3] or a salt of the same.
制备由化学式[1]表示的化合物的方法,包括在酸性或碱性条件下水解由化学式[2]表示的化合物的步骤,以及与金属醋酸盐反应由化学式[3]表示的化合物的步骤,以及卤代由化学式[4]表示的化合物的步骤;制备由化学式[1]表示的化合物的方法,包括将由化学式[3]表示的化合物与金属醋酸盐反应的步骤,然后向反应溶液中加入醇、水或碱来进行反应;制备由化学式[1]表示的化合物的方法,包括在水或水和有机溶剂的混合溶剂中,在存在或缺乏碱、离子液体和金属硫酸盐的情况下,将由化学式[3]表示的化合物进行反应的步骤;由化学式[2]表示的化合物或其盐;以及由化学式[3]表示的化合物或其盐。