Preparation of a 5-(2,2-dihalovinyl)-4,4-dimethyl-2-oxotetrahydr

Details Preparation of a 5-(2,2-dihalovinyl)-4,4-dimethyl-2-oxotetrahydr Preparation of a 5-(2,2-dihalovinyl)-4,4-dimethyl-2-oxotetrahydr

1976-05-25

1978-07-25

Jaisle, Cecilia M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260514H, 2605855, 260586R, 560123, C07D30732

Patent

active

041028961

ABSTRACT:
A process for preparing a 5-(2,2-dihalovinyl)-4,4-dimethyl-2-oxotetrahydrofuran of formula: ##STR1## wherein X and Z are each either chlorine or bromine, which comprises the step of treating a compound of formula: ##STR2## with an excess of a base selected from alkali metal hydroxides and chemical equivalents thereof.

REFERENCES:
patent: 3488732 (1970-01-01), Heiba et al.
patent: 3946078 (1976-03-01), Rautenetrauch et al.
patent: 3962148 (1976-06-01), Hochstetler et al.

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