SCHEDULED MAINTENANCE
The ester enolate Claisen rearrangement of the α-methoxyacetate of the allylic alcohol (2) followed by oxidative decarboxylation of the dianion derived from the resulting α-methoxycarboxylate provides an efficient preparation of the β,γ-unsaturated ester (5), and hence leads to (6), the functionality of which is common to many mono- and sesqui-tetrpenes.
J. K. Whitesell and A. M. Helbling, J. Chem. Soc., Chem. Commun., 1977, 594 DOI: 10.1039/C39770000594
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