Cyclohexylidene compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing

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556482, 558194, 568 11, 568 15, 568 33, C07F 704, C07F 902

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056167598

ABSTRACT:
Cyclohexylidene compounds of the structure: ##STR1## where X.sup.1 and X.sup.2, which may be the same or different, is hydrogen or a hydroxy-protecting group, and Y is --POPh.sub.2, or --PO (OAlkyl).sub.2, or --SO.sub.2 Ar, or --Si(Alkyl).sub.3. The compounds are used as intermediates in the preparation of 19-nor-vitamin D compounds.

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