Abstract
In the presence of pyridinium para-toluenesulfonate (PPTS) an allylic alcohol moiety exocyclic to a lactam ring undergoes allylic isomerisation, or if the solvent is nucleophilic, 1,3- transposition can occur. All the rearrangements occurred with stereocontrol.
ACKNOWLEDGMENTS
We are grateful to the Engineering and Physical Sciences Research Council and SmithKline Beecham for a CASE award (to A.K.).