Leeper Group



T. A. Carpenter, P. J. Jenner, F. J. Leeper and J. Staunton
"A Novel Kinetic Deprotonation at a Vinylic Carbon in a Pyrone Ring"
J. Chem. Soc., Chem. Commun.,1980, 1227. Full Text

Treatment of 4-methoxy-a-pyrones with butyllithium or lithium di-isopropylaniide causes rapid deprotonation at C(3) of the pyrone ring to give nioderately stable vinylic carbanions.

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Department of Chemistry
University of Cambridge