Process for preparing 1,3-dioxoles

Details Process for preparing 1,3-dioxoles Process for preparing 1,3-dioxoles

1992-02-05

1994-03-22

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31742

Patent

active

052966178

ABSTRACT:
A process for preparing 1,3-dioxoles of formula: ##STR1## in which X.sub.1 and X.sub.3, like or different from each other, are F or H, X.sub.5 and X.sub.6, like or different from each other, are F or CF.sub.3, by dehalogenation reaction of the corresponding 4,5-dihalodioxolanes in the presence of a dehalogenation agent at a temperature ranging from +30.degree. to +130.degree. C.
The starting dioxolanes are essentially in the isomeric form anti.

REFERENCES:
patent: 3865845 (1975-02-01), Resnick
patent: 4393227 (1983-07-01), Squire
patent: 4485250 (1984-11-01), Squire
patent: 4908461 (1990-03-01), Hung
Hohorst et al., "Some Reactions of Bis(fluoroxy)difluoromethane, CF.sub.2 (OF.sub.2).sub.2 ", Inorganic Chemistry, vol. 7, No. 3, pp. 624-626 (Mar. 1968).

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