SCHEDULED MAINTENANCE
Nucleophilic attack by an ethylcuprate on the α,β-unsaturated ketone 3 takes place anti to the silyl group to give largely (96∶4) a single product 4, fragmentation of which removes the silyl group, and reveals a pair of stereogenic centres having an open-chain 1,5 relationship 9.
An approach to open-chain 1,5-stereocontrol using a silyl group
I. Fleming and C. Ramarao, Chem. Commun., 2000, 2185 DOI: 10.1039/B006515N
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