The present contribution is devoted to the investigation of the oxidative degradation of the 3,3-diphenyl-[3H]-naphtho[2,1-b]pyrane in toluenic solution. In order to propose some mechanisms concerning these degradation processes, we have identified the photoproducts by mean of coupled technics (GC-FID, HPLC-DAD, CC-MS). In those conditions, we have observed the production of benzophenone, beta-phenylcinnamaldehyde, 2-hydroxy-1-naphthaldehyde along with an unidentified product detected by CC-MS (m/z = 256 g.Mol(-1)).