REARRANGEMENT APPROACHES TO CYCLIC SKELETONS. V. FORMAL BRIDGEHEAD SUBSTITUTION OF 1-METHOXYBICYCLONON-6-EN-2-ONES AND ITS APPLICATION TO A TOTAL SYNTHESIS OF (+/-)-WIDDROL

Article abstract of DOI:10.1016/S0040-4020(01)87741-3

The C-1 methoxy group of bicyclo<3.2.2>non-6-en-2-ones is replaced by alkyl, alkenyl, and aryl groups or hydrogen with inversion of the absolute configuration via the two-step sequence consists of Grignard reaction or reduction of the carbonyl followed by