Table 2.

KH-Mediated oxy-Cope Rearrangement.

Alcohola	Productb	Yieldc
1 3a	4a	70%
2 3bd	4b	64%
3 3dAre	4c	89%
4 3cAlke	4d	80%
5 3cAre	4e	67%
6 3eMef	4f	52%

^aOxy-Cope rearrangement was carried out with dicyclohexyl-18-crown-6 and KH in THF.

^bProducts were a mixture of α-epimers.

^cYields are for pure isolated substances.

^dt-BuOK was used for the rearrangement.

^ePrepared by Stille coupling of the corresponding iodoalkene.

^fPrepared by Kumada coupling of the corresponding alkene.