Abstract
The catalyst-free allylation of isatins with allyltrichlorosilane was performed smoothly in DMF under mild conditions and moderate to excellent yields (60%-94%) were obtained. This protocol provided a new and efficient approach for the preparation of 3-allyl-3-hydroxy-2-oxindoles.
Keywords: Allylation, isatin, allyltrichlorosilane, 3-allyl-3-hydroxy-2-oxindoles, catalyst-free, hydroxyglucoisatisins, convulutamydines, donaxaridines, HIV protease inhibitor, welwitindoline