Functicnalization of 4-Hydroxy-6-Methyl-2-Pyrone at C-5 Through [2,3] Sigmatropic Rearrangements of Allylic Sulphonium Ylides
- 1 May 1984
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 14 (6) , 521-532
- https://doi.org/10.1080/00397918408059574
Abstract
Functionalization at C-5 of the triacetic acid lactone methyl ether, 7, has been achieved by a transfer from the C-6 position. Thus, treatment of sulfides 12 with an excess of ethyl diazoaceta-te provides the pyrones 15 through [2,3] sigmatropic rearrangements.Keywords
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