Not only did this chemistry allow the preparation of an anthraquinone system under mild nonacidic conditions but it also formed 3, in which the two anthraquinone carbonyls were differentiated chemically. Since the above chemistry permits a convergent approach to polycyclic natural products possessing labile functionalities, we were interested in exploring this chemistry further. In particular, the reaction of a p-acylvinyl anion equivalent with an ...
[Gilchrist, Thomas L.; Stanford, John E. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 225 - 230]