A simple and facile synthesis of functionalized [4,4,4]-propellone dilactone derivatives
through dialkylation of cyclic 1,3-diketones with Baylis–Hillman adducts and subsequent
dilactonization is described. This methodology is appealing because it is reliable
and scalable (the products can be synthesized on a gram scale). The tricyclic products
can be exploited for their biological activity.
Key words
Baylis–Hillman adducts - propellones - cyclic diketones - alkylation - lactonization