2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermedia

Details 2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermedia 2,2-difluorobenzo (1,3)-dioxole-carbaldehydes and new intermedia

1994-03-04

1995-05-30

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549434, C07D31746

Patent

active

054203082

ABSTRACT:
According to the invention, a new process has been found for the preparation of 2,2-difluoro-benzo[1,3]-dioxole-carbaldehydes of the formula (I) ##STR1## in which benzo[1,3]dioxole-carbaldehydes are chlorinated, the 2,2-dichloro-dichloromethylbenzo[1,3]dioxoles formed, which are likewise new, are partly fluorinated to give the 2,2-difluoro-dichloromethyl-benzo[1,3]dioxoles, which are likewise new, and these are then reacted with urotropin to give the desired compounds.

REFERENCES:
patent: 4310540 (1982-01-01), Lantzsch et al.
patent: 4886816 (1989-12-01), Franckowiak et al.
patent: 5260460 (1993-11-01), Andres et al.
patent: 5281725 (1994-01-01), Andres et al.
Eugene L. Stogryn, J. Org. Chem., 1972, p. 673.
A. H. Blatt, Organic Syntheses, collective vol. 2, p. 549, 1946.
I. R. C. Bick, Australian Journal of Chemistry, vol. 22, 1969, pp. 1563-1568.

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