THE variety of reactions,' involving the mutual displacement of electrophiles (other than protons) from an aromatic nucleus, is steadily increasing Recent additions' to the class are dehalogenoacylation and bromodeacylation. In the latter case it has been observed that bromination of 2'-hydroxy4'6'dimethoxyacetophenone ... Thus nuclear bromination precedes bromodeacylation and, more importantly, the hydrogen bromide so formed does not effect deacylation. ...
