申请人:Daikin Industries, Ltd.
公开号:EP3121160A1
公开(公告)日:2017-01-25
An object of the present invention is to provide a method for producing a compound having an oxydifluoromethylene skeleton at a high yield by a simple process without using highly toxic starting materials, such as dibromodifluoromethane, while generating almost no difficult-to-separate impurities. A reaction between a thionocarboxylic acid ester (which may be obtained by a reaction between a halogenated thiocarbonyl compound and a specific compound as required) and a compound represented by Formula: XFn (wherein X represents chlorine, bromine, or iodine, and n represents a natural number of 1 to 5) gives a compound having an oxydifluoromethylene skeleton at a high yield. Various groups, such as an aromatic ring group, may also be introduced in high yield by reacting this compound with a boronic acid compound and the like as required.
本发明的目的是提供一种方法,通过简单的工艺,在不使用剧毒起始原料(如二溴二氟甲烷)的情况下,高产率地生产具有氧二氟亚甲基骨架的化合物,同时几乎不产生难以分离的杂质。硫代羧酸酯(可根据需要通过卤代硫羰基化合物与特定化合物的反应获得)与由式:XFn(其中 X 代表氯、溴或碘,n 代表 1 至 5 的自然数)可得到具有氧二氟甲基骨架的高产率化合物。还可以根据需要,通过使该化合物与硼酸化合物等反应,高产率地引入各种基团,如芳香环基团。