Design and Synthesis of a Polyketone Building Block with Vinyl Groups—9,10-Diethyl-9,10-ethenoanthracene-2,3,6,7(9H,10H)-tetraone—and a Preliminary Photoelectrical Property Study of Its Azaacene Derivatives

[Image: see text] Polyketone compounds are powerful building blocks to synthesize various organic functional materials. Despite that a great many number of planar and non-planar polyketone building blocks have been developed, one issue is that generally there are only ketone functional groups on the molecular skeleton, which will constrain their transformation and further limit the development of functional materials. In this work, we report the design and synthesis of a building block 9,10-diethyl-9,10-ethenoanthracene-2,3,6,7(9H,10H)-tetraone with additional vinyl functional groups. In addition, its azaacene derivatives were also synthesized, and their preliminary physicochemical properties were studied.