申请人:Bayer Aktiengesellschaft
公开号:US05281725A1
公开(公告)日:1994-01-25
New 2,2-dihalogeno-benzo[1,3]dioxoles substituted in the 4-position, of the general formula (I) ##STR1## in which R represents fluorine, chlorine, bromine or nitro and Hal represents chlorine or fluorine, and their use as starting substances for the synthesis of highly active compounds, for example in the field of plant protection and pharmaceuticals. The compounds of the formula (I) can be prepared by analogous processes, for example by chlorination from corresponding benzo[1,3]dioxoles substituted in the 4-position, and these substances according to the invention can be further reacted with hydrogen fluoride to give substances to which the invention likewise relates.
新的2,2-二卤代苯并[1,3]二噁烷取代在4位,通式(I)如下:##STR1## 其中R代表氟、氯、溴或硝基,Hal代表氯或氟,并且它们可用作合成高活性化合物的起始物质,例如在植物保护和制药领域。通式(I)的化合物可以通过类似的方法制备,例如通过从相应的4-位取代苯并[1,3]二噁烷进行氯化,而这些发明的物质可以进一步与氢氟酸反应,形成本发明同样涉及的物质。