Return to Article Details OXA-[3+3] ANNULATION OF 1<i>H</i>-BENZO[<i>f</i>]CHROMENE-2-CARBALDEHYDES AND 2-NAPHTHOLS: SYNTHESIS OF 7a<i>H</i>,15<i>H</i>-BENZO[<i>f</i>]BENZO[5,6]CHROMENO[2,3-<i>b</i>]CHROMENES Download Download PDF