Intermediates for the preparation of 6.alpha., 9.alpha.-difluoro

Details Intermediates for the preparation of 6.alpha., 9.alpha.-difluoro Intermediates for the preparation of 6.alpha., 9.alpha.-difluoro

1995-05-15

1996-09-17

Cook, Rebecca

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540 88, C07J 7100

Patent

active

055569650

ABSTRACT:
A compound of the formula ##STR1## wherein R is hydrogen or an ester remainder, X is hydrogen or fluorine and Y combined with the doted lines represents ##STR2## or X is hydrogen and and Y combined with the dotted lines is ##STR3## and R.sub.1 is the remainder of an enol ether or ester.

REFERENCES:
patent: 3546215 (1970-12-01), Fried
patent: 3636010 (1972-01-01), Anner et al.
patent: 3828080 (1974-08-01), Phillipps et al.
patent: 4198404 (1980-04-01), Edwards et al.
CA103:105215, Schmidlin, Mar. 27, 1985, EP 135476.

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