ABSTRACT
The pinacol coupling reaction of aromatic aldehydes and ketones was performed in 8–95% yield with magnesium in 0.1 M aqueous NH4Cl under ultrasound irradiation at r.t. for 3 h.
ACKNOWLEDGMENTS
The project was supported by National Natural Science Foundation of China (29872011), Educational Ministry of China and Educational Department of Hebei Province (99014). The project was supported by Natural Science Foundation of Hebei Province (299080).