Albuquerque, HélioSantos, Clementina M.M.Cavaleiro, JoséSilva, Artur2020-07-202020-07-202017Albuquerque, Hélio; Santos, Clementina M.M.; Cavaleiro, José; Silva, Artur (2017). Microwave-assisted synthesis of chromeno[3,4-b]xanthones and (benzo[c]cromenyl)chromones. In TRAMECH IX - Transmediterranean Colloquium on Heterocyclic Chemistry. Fez, Marrocoshttp://hdl.handle.net/10198/22492Two series of novel propargyloxychromones were designed and synthesized. Both chromone derivatives were used as substrates in MW-assisted intramolecular Diels-Alder reactions, affording chromeno[3,4-b]xanthones and (benzo[c]chromenyl)chromones. This is the first report involving chromone derivatives in intramolecular Diels-Alder reactions for the synthesis of new oxygen heterocycles, namely xanthones and flavones.engPropargyloxychromonesIntramolecular Diels-AlderFlavonesXanthonesconference poster