Gold(I)-catalyzed cycloisomerization of β-alkynylpropiolactones to substituted α-pyrones.
Substituted α-pyrones were straightforwardly synthesized in good to excellent yields by a new gold(I)-catalyzed rearrangement of β-alkynylpropiolactones.
Laboratoire de Synthèse et Réactivité Organiques Associé au CNRS, Institut de Chimie, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France.
Thomas
T
Dombray
Aurélien
A
Blanc
Jean-Marc
JM
Weibel
Patrick
P
Pale