Chinone. XIII. Synthese von 4,5,9,10-Tetrahydropyren-2,7-dion und Versuch zur Darstellung von Pyren-2,7-dion
摘要:
The titel quinones 7 and 9 are of interest as electron acceptors for organic conductors. The synthesis of their conjugate hydroquinones 6 and 8 via the metacyclophane derivative 3 is described. The tetrahydropyrene-2,7-dione 7 - obtained by oxidation of 6 - possesses only a limited stability, whereas pyrene-2,7-dion (9) proved to unstable to be isolated.