[1,2]-Wittig rearrangement of a lithioalkyl benzyl ether with inversion of configuration at the carbanion C atom. Diastereoselective reductions of cyclohexyl radicals with LI+ arene-

Article abstract of DOI:10.1016/S0040-4039(00)60571-3

Treatment of the diastereomeric O, Se-ketals cis- or trans-4 with lithium naphthalenide provided, through stereoselective reduction of the radical intermediate 5, the axially lithiated cyclohexyl ether trans-6. trans-6 gave the equatorially benzylated cyc