Isophorone dienol ether

Iododesilylation, 41 of aryltrimethylsilanes, 42 Iodomethyltrimethylsilane, 27 4-Iodophenylalanine, 42 Ionic hydrogenation, 136 Ireland-Claisen rearrangement, 112-14 ftwtf-2 Isocyanocyclohexanol, 137 Isophorone, 52 Isophorone dienol ether, 135 (Isopropoxydimethylsilyl)methyl magnesium chloride, 58... 

Oxidation with mepba — -hydroxyketones, using the reaction of isophorone dienol ether (detailed preparation given), and Et3N.HF cleavage of the intermediate silyl ether. 

It is important to note that, under the same conditions, isophorone or other /3-alkyl cyclic enones predominantly afford the exocyclic conjugated silyl dienol ether (Scheme 3). 

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