EFFICIENT SYNTHESIS OF SOME 2-OXASPIRONONA-1-ONES AS ANISATIN MODELS
As a model study for the synthesis of anisatin, 2-oxaspirononane and 5-hydroxy-5-methyl-2-oxaspirononane were synthesized from methyl cyclohexanecarboxylate and 2-ethoxycarbonylcyclohexanone, respectively, and these oxenates were submitted to ru