Synthese, a partir du (+)-camphre, d'heterocycles derives des tetrahydroxanthone, tetrahydroacridone, tetrahydroacridine et octahydroacridine
Derivatives of acridine, acridone and xanthone were prepared from (+)-camphor. 3-Arylidene, 3-arylmethyl or 3-aroylcamphors with an halogen in the ortho position and dibornanonylarylmethanes may be used as precursors.Ring closure may be induced by ammonia