Process for the preparation of substituted difluorobenzo-1,3-dio

Details Process for the preparation of substituted difluorobenzo-1,3-dio Process for the preparation of substituted difluorobenzo-1,3-dio

1995-03-06

1996-02-20

McKane, Joseph K.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549214, 549434, 549436, 549437, 549440, 549442, 549446, 549447, C07D31706

Patent

active

054930324

ABSTRACT:
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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