A novel kinetic deprotonation at a vinylic carbon in a pyrone ring
作者:T. Adrian Carpenter、Peter J. Jenner、Finian J. Leeper、James Staunton
DOI:10.1039/c39800001227
日期:——
Treatment of 4-methoxy-α-pyrones with butyllithium or lithium di-isopropylamide causes rapid deprotonation at C(3) of the pyronering to give moderately stable vinylic carbanions.