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US5493032A Process for the preparation of substituted difluorobenzo-1,3-dioxoles 失效
制备取代的二氟苯-1,3-二氧杂环戊烯的方法

Process for the preparation of substituted difluorobenzo-1,3-dioxoles
摘要:
The reaction of 2,2-difluorobenzo-1,3-dioxole with (a) an alkali metal or an alkali metal compound and then (b) a compound R.sup.1 -Z.sup.1 in which Z.sup.1 is a leaving group, or with an aldehyde produces compounds of formula I ##STR1##
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