In our previous studies on the template effect in the ortho-regioselective electrophilic acylation of metal phenolatesl we have reported simple and mild reaction conditions for preparing anthraquinones 5 via a one-pot bisacylation of aromatic substrates with o- phthaloyl dichlorides 1 (Scheme 1h2 On the basis of our synthetic and mechanistic studies we thought that the entire process could be easily accomplished due to the temporary loss ...
