Magnesium-indced pinacol coupling o faromatic aldehydes and ketones in water under ultrasound

摘要

The pinacol coupling of aromatic aldehydes and ketones has been carriedout in 20-62% and 10-91% yields,respectively iwthMg and Mg-MgCl_2 in water under ultrasound irradiation at room temperature for 3-4hr.1,2-Diols are very useful synthons for a variety of organic synthesis.