Abstract
The allylation reactions of aldehydes and ketones were carried out in 25%–98% (or 29%–96%) yield with La/SnCl2/H2O under ultrasound irradiation (or stirring) at rt for 1 h (or 4 h). The main advantage of the present procedure is the higher yield and the environmentally benign method.
Acknowledgment
The project was supported by Natural Science Foundation of Hebei Province (203107), Science and Technology Foundation of Hebei Province (04213041), and Science Foundation of Hebei Lang Fang Normal College (200517).